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  • Data Guard - Snapshot Standby Database??

    - by Jian Zhang-Oracle
    ?? -------- ?????,??standby?????mount??????????REDO??,??standby????????????????????,???????read-only???open????,????ACTIVE DATA GUARD,????standby?????????(read-only)??(????????),????standby???????????(read-write)? ?????,?????????????Real Application Testing(RAT)??????????,?????????standby??????snapshot standby?????????,??snapshot standby??????????,???????????(read-write)??????snapshot standby??????????????,?????????,??????????,????????,?????????snapshot standby?????standby???,????????? ?? ---------  1.??standby?????? SQL> Alter system set db_recovery_file_dest_size=500M; System altered. SQL> Alter system set db_recovery_file_dest='/u01/app/oracle/snapshot_standby'; System altered. 2.??standby?????? SQL> alter database recover managed standby database cancel; Database altered. 3.??standby???snapshot standby,??open snapshot standby SQL> alter database convert to snapshot standby; Database altered. SQL> alter database open;    Database altered. ??snapshot standby??????SNAPSHOT STANDBY,open???READ WRITE: SQL> select DATABASE_ROLE,name,OPEN_MODE from v$database; DATABASE_ROLE    NAME      OPEN_MODE ---------------- --------- -------------------- SNAPSHOT STANDBY FSDB      READ WRITE 4.?snapshot standby???????????Real Application Testing(RAT)????????? 5.?????,??snapshot standby???physical standby,?????????? SQL> shutdown immediate; Database closed. Database dismounted. ORACLE instance shut down. SQL> startup mount; ORACLE instance started. Database mounted. SQL> ALTER DATABASE CONVERT TO PHYSICAL STANDBY; Database altered. SQL> shutdown immediate; ORA-01507: database not mounted ORACLE instance shut down. SQL> startup mount; ORACLE instance started. Database mounted. SQL>ALTER DATABASE RECOVER MANAGED STANDBY DATABASE DISCONNECT FROM SESSION; Database altered. 5.?????standby?,???????PHYSICAL STANDBY,open???MOUNTED SQL> select DATABASE_ROLE,name,OPEN_MODE from v$database; DATABASE_ROLE    NAME      OPEN_MODE ---------------- --------- -------------------- PHYSICAL STANDBY FSDB      MOUNTED 6.??????????????? ????: SQL> select ads.dest_id,max(sequence#) "Current Sequence",            max(log_sequence) "Last Archived"        from v$archived_log al, v$archive_dest ad, v$archive_dest_status ads        where ad.dest_id=al.dest_id        and al.dest_id=ads.dest_id        and al.resetlogs_change#=(select max(resetlogs_change#) from v$archived_log )        group by ads.dest_id;    DEST_ID Current Sequence Last Archived ---------- ---------------- -------------      1              361           361      2              361           362 --???? SQL>    select al.thrd "Thread", almax "Last Seq Received", lhmax "Last Seq Applied"       from (select thread# thrd, max(sequence#) almax           from v$archived_log           where resetlogs_change#=(select resetlogs_change# from v$database)           group by thread#) al,          (select thread# thrd, max(sequence#) lhmax           from v$log_history           where resetlogs_change#=(select resetlogs_change# from v$database)           group by thread#) lh      where al.thrd = lh.thrd;     Thread Last Seq Received Last Seq Applied ---------- ----------------- ----------------          1               361              361 ??????????,???blog,???????????,??"??:Data Guard - Snapshot Standby Database??" 

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  • Install a i386 printer driver into an amd64 distribution or how can I find a good printer based on features?

    - by Yanick Rochon
    Hi, I just bought a Lexmark Interpret S408 all-in-one printer. The box said that it supported Ubuntu 8.04, but I told myself it should work with Lucid... well no. The only driver I have found is for i386 while I have a amd64 image installed; the architecture is incompatible. So, the quesiton is : Is it possible to install that driver anyway, somehow? Or do I need to take that printer back to the store and buy another one? If the latter is the only alternative, I need a printer that has wireless connection capability can do color printing is of good price (less than $200 CAD) Thank you for your answers, help, and tips. ** UPDATE ** The driver was given in the form of deb package (for Debian distributions) and I managed to extract the actual deb package driver out of the install program. I ran sudo dpkg -i --force-all lexmark-inkjet-09-driver-1.5-1.i386.deb and the driver installed, and I was able to print something out. But that pretty much ends there; I cannot access anymore of the printer settings, etc. (i.g. scanner, fax, wifi settings, etc.) I should suffice for now as I'm satisfied with the printer's features (and size, and prince), but if I could have a full-linux-supported printer like that one, I would return this one in exchange for the other.

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  • HttpURLConnection! Connection.getInputStream is java.io.FileNotFoundException

    - by user3643283
    I created a method "UPLPAD2" to upload file to server. Splitting my file to packets(10MB). It's OK (100%). But when i call getInputStream, i get FileNotFoundException. I think, in loop, i make new HttpURLConnection to set "setRequestProperty". This is a problem. Here's my code: @SuppressLint("NewApi") public int upload2(URL url, String filePath, OnProgressUpdate progressCallBack, AtomicInteger cancelHandle) throws IOException { HttpURLConnection connection = null; InputStream fileStream = null; OutputStream out = null; InputStream in = null; HttpResponse response = new HttpResponse(); Log.e("Upload_Url_Util", url.getFile()); Log.e("Upload_FilePath_Util", filePath); long total = 0; try { // Write the request. // Read from filePath and upload to server (url) byte[] buf = new byte[1024]; fileStream = new FileInputStream(filePath); long lenghtOfFile = (new java.io.File(filePath)).length(); Log.e("LENGHT_Of_File", lenghtOfFile + ""); int totalPacket = 5 * 1024 * 1024; // 10 MB int totalChunk = (int) ((lenghtOfFile + (totalPacket - 1)) / totalPacket); String headerValue = ""; String contentLenght = ""; for (int i = 0; i < totalChunk; i++) { long from = i * totalPacket; long to = 0; if ((from + totalPacket) > lenghtOfFile) { to = lenghtOfFile; } else { to = (totalPacket * (i + 1)); } to = to - 1; headerValue = "bytes " + from + "-" + to + "/" + lenghtOfFile; contentLenght = "Content-Length:" + (to - from + 1); Log.e("Conten_LENGHT", contentLenght); connection = client.open(url); connection.setRequestMethod("POST"); connection.setRequestProperty("Content-Range", headerValue); connection.setRequestProperty("Content-Length", Long.toString(to - from + 1)); out = connection.getOutputStream(); Log.e("Lenght_Of_File", lenghtOfFile + ""); Log.e("Total_Packet", totalPacket + ""); Log.e("Total_Chunk", totalChunk + ""); Log.e("Header_Valure", headerValue); int read = 1; while (read > 0 && cancelHandle.intValue() == 0 && total < totalPacket * (i + 1)) { read = fileStream.read(buf); if (read > 0) { out.write(buf, 0, read); total += read; progressCallBack .onProgressUpdate((int) ((total * 100) / lenghtOfFile)); } } Log.e("TOTAL_", total + "------" + totalPacket * (i + 1)); Log.e("I_", i + ""); Log.e("LENGHT_Of_File", lenghtOfFile + ""); if (i < totalChunk - 1) { connection.disconnect(); } out.close(); } // Read the response. response.setHttpCode(connection.getResponseCode()); in = connection.getInputStream(); // I GET ERROR HERE. if (connection.getResponseCode() != HttpURLConnection.HTTP_OK) { throw new IOException("Unexpected HTTP response: " + connection.getResponseCode() + " " + connection.getResponseMessage()); } byte[] body = readFully(in); response.setBody(body); response.setHeaderFields(connection.getHeaderFields()); if (cancelHandle.intValue() != 0) { return 1; } JSONObject jo = new JSONObject(response.getBodyAsString()); Log.e("Upload_Body_res_", response.getBodyAsString()); if (jo.has("error")) { if (jo.has("code")) { int errCode = jo.getInt("code"); Log.e("Upload_Had_errcode", errCode + ""); return errCode; } else { return 504; } } Log.e("RESPONE_BODY_UPLOAD", response.getBodyAsString() + ""); return 0; } catch (Exception e) { e.printStackTrace(); Log.e("Http_UpLoad_Response_Exception", e.toString()); response.setHttpCode(connection.getResponseCode()); Log.e("ErrorCode_Upload_Util_Return", response.getHttpCode() + ""); if (connection.getResponseCode() == 200) { return 1; } else if (connection.getResponseCode() == 0) { return 1; } else { return response.getHttpCode(); } // Log.e("ErrorCode_Upload_Util_Return", response.getHttpCode()+""); } finally { if (fileStream != null) fileStream.close(); if (out != null) out.close(); if (in != null) in.close(); } } And Logcat 06-12 09:39:29.558: W/System.err(30740): java.io.FileNotFoundException: http://download-f77c.fshare.vn/upload/NRHAwh+bUCxjUtcD4cn9xqkADpdL32AT9pZm7zaboHLwJHLxOPxUX9CQxOeBRgelkjeNM5XcK11M1V-x 06-12 09:39:29.558: W/System.err(30740): at com.squareup.okhttp.internal.http.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:187) 06-12 09:39:29.563: W/System.err(30740): at com.fsharemobile.client.HttpUtil.upload2(HttpUtil.java:383) 06-12 09:39:29.563: W/System.err(30740): at com.fsharemobile.fragments.ExplorerFragment$7$1.run(ExplorerFragment.java:992) 06-12 09:39:29.568: W/System.err(30740): at java.lang.Thread.run(Thread.java:856) 06-12 09:39:29.568: E/Http_UpLoad_Response_Exception(30740): java.io.FileNotFoundException: http://download-f77c.fshare.vn/upload/NRHAwh+bUCxjUtcD4cn9xqkADpdL32AT9pZm7zaboHLwJHLxOPxUX9CQxOeBRgelkjeNM5XcK11M1V-x

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  • Runtime error on UVa Online Judge on Erdos Number

    - by 2012 - End of the World
    I am solving the Erdos number problem from the programming challenges in JAVA. The code runs perfectly in my machine. However on the online judge it results in a runtime error. Could anyone point out the mistake i made? http://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=985 Here is the code import java.util.*; import java.io.*; class Main { private String inputLines[]; private String namesToBeFound[]; private String namesInEachBook[][]; private String searchItem; private boolean solnfound=false; private static final BufferedReader br =new BufferedReader(new InputStreamReader(System.in)); static String read() throws IOException { String line; while(true) { line=br.readLine(); if(line==null) break; //eof else if(line.length()==0) continue; //blank line else { line=line.trim().replaceAll("\\s+"," "); return line; } } return null; } public static void main(String args[]) throws IOException { Main ob=new Main(); int totalPapers,calcAuthors,totalScenarios; //First input number of scenarios totalScenarios=Integer.parseInt(read()); //Now start a loop for reading total number of scenarios for(int scenario=1;scenario<=totalScenarios;scenario++) { //Now read the line containing the number of papers and authors StringTokenizer line=new StringTokenizer(read()," "); totalPapers=Integer.parseInt(line.nextToken()); calcAuthors=Integer.parseInt(line.nextToken()); //Read a line containing author names along with book names ob.inputLines=new String[totalPapers]; for(int i=0;i<totalPapers;i++) ob.inputLines[i]=read(); //Read a line containing the names to be searched ob.namesToBeFound=new String[calcAuthors]; for(int i=0;i<calcAuthors;i++) ob.namesToBeFound[i]=read(); //Now generate the array ob.buildArray(); //Now search System.out.println("Scenario "+scenario); for(int i=0;i<calcAuthors;i++) { ob.searchItem=ob.namesToBeFound[i]; if(ob.searchItem.equals("Erdos, P.")) { System.out.println("Erdos, P. 0"); continue; } ob.search(ob.namesToBeFound[i],1,new ArrayList()); if(ob.solnfound==false) System.out.println(ob.searchItem+" infinity"); ob.solnfound=false; } } } private void buildArray() { String str; namesInEachBook=new String[inputLines.length][]; for(int i=0;i<inputLines.length;i++) { str=inputLines[i]; str=str.substring(0,str.indexOf(':')); str+=","; namesInEachBook[i]=new String[(countCommas(str)+1)>>1]; for(int j=0;j<namesInEachBook[i].length;j++) { str=str.trim(); namesInEachBook[i][j]=""; namesInEachBook[i][j]+=str.substring(0,str.indexOf(','))+","; str=str.substring(str.indexOf(',')+1); namesInEachBook[i][j]+=str.substring(0,str.indexOf(',')); str=str.substring(str.indexOf(',')+1); } } } private int countCommas(String s) { int num=0; for(int i=0;i<s.length();i++) if(s.charAt(i)==',') num++; return num; } private void search(String searchElem,int ernosDepth,ArrayList searchedElem) { ArrayList searchSpace=new ArrayList(); searchedElem.add(searchElem); for(int i=0;i<namesInEachBook.length;i++) for(int j=0;j<namesInEachBook[i].length;j++) { if(namesInEachBook[i][j].equals(searchElem)) //Add all authors name in this group { for(int k=0;k<namesInEachBook[i].length;k++) { if(namesInEachBook[i][k].equals("Erdos, P.")) //Found { solnfound=true; System.out.println(searchItem+" "+ernosDepth); return; } else if(searchedElem.contains(namesInEachBook[i][k]) || searchSpace.contains(namesInEachBook[i][k])) continue; searchSpace.add(namesInEachBook[i][k]); } break; } } Iterator i=searchSpace.iterator(); while(i.hasNext()) { String cSearchElem=(String)i.next(); search(cSearchElem,ernosDepth+1,searchedElem); } } }

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  • How to revert to Eclipse's old behavior when double-clicking on frames or windows, in Juno?

    - by mattquiros
    I find Eclipse Juno very counter-intuitive. In my workspace, I used to just have the package view at the left, my code on the right, and whenever I'm printing something in the console, that's only when the console frame shows up from the bottom right. When you double click on a particular window, it either only goes fullscreen within Eclipse, or back to its original size together with the size of the other frames. In Juno, however, it seems that frames are put on layers on top of each other. When I print something to the console, the output frame only shows up as a small, useless square to my right. When I double-click, it goes full screen. When I double-click again, it occupies the full right frame, hiding my code. I double-click again and it goes full screen, then it double-clicks before it shares the right frame with my code on top of it. Then when I minimize it, it goes to the side. Any way to go back to the good old days of Eclipse? Thanks.

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  • 7 drived classes with one common base class

    - by user144905
    i have written the following code, //main.cpp #include<iostream> #include<string> #include"human.h" #include"computer.h" #include"referee.h" #include"RandomComputer.h" #include"Avalanche.h" #include"Bureaucrat.h" #include"Toolbox.h" #include"Crescendo.h" #include"PaperDoll.h" #include"FistfullODollors.h" using namespace std; int main() { Avalanche pla1; Avalanche pla2; referee f; pla1.disp(); for (int i=0;i<5;i++) { cout<<pla2.mov[i]; } return 0; } in this program all included classes except referee.h and human.h are drived from computer.h. each drived calls has a char array variable which is initialized when a member of a drived class is declared. the problem is that when i declare tow diffrent drived class memebers lets say Avalache and ToolBox. upon printing the char array for one of them using for loop it prints nothing. However if i declare only one of them in main.cpp the it works properly. and the file for computer.h is as such: #ifndef COMPUTER_H #define COMPUTER_H class computer { public: int nump; char mov[]; void disp(); }; #endif ToolBox.h is like this: #ifndef TOOLBOX_H #define TOOLBOX_H #include"computer.h" class Toolbox: public computer { public: Toolbox(); }; #endif finally Avalanche.h is as following: #ifndef AVALANCHE_H #define AVALANCHE_H #include"computer.h" class Avalanche: public computer { public: Avalanche(); }; #endif

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  • CodePlex Daily Summary for Wednesday, September 05, 2012

    CodePlex Daily Summary for Wednesday, September 05, 2012Popular ReleasesDesktop Google Reader: 1.4.6: Sorting feeds alphabetical is now optional (see preferences window)DotNetNuke® Community Edition CMS: 06.02.03: Major Highlights Fixed issue where mailto: links were not working when sending bulk email Fixed issue where uses did not see friendship relationships Problem is in 6.2, which does not show in the Versions Affected list above. Fixed the issue with cascade deletes in comments in CoreMessaging_Notification Fixed UI issue when using a date fields as a required profile property during user registration Fixed error when running the product in debug mode Fixed visibility issue when...Microsoft Ajax Minifier: Microsoft Ajax Minifier 4.65: Fixed null-reference error in the build task constructor.BLACK ORANGE: HPAD TEXT EDITOR 0.9 Beta: HOW TO RUN THE TEXT EDITOR Download the HPAD ARCHIVED FILES which is in .rar format Extract using Winrar Make sure that extracted files are in the same folder Double-Click on HPAD.exe application fileTelerikMvcGridCustomBindingHelper: Version 1.0.15.247-RC2: TelerikMvcGridCustomBindingHelper 1.0.15.247 RC2 Release notes: This is a RC version (hopefully the last one), please test and report any error or problem you encounter. This release is all about performance and fixes Support: "Or" and "Does Not contain" filter options Improved BooleanSubstitutes, Custom Aggregates and expressions-to-queryover Add EntityFramework examples in ExampleWebApplication Many other improvements and fixes Fix invalid cast on CustomAggregates Support for ...ServiceMon - Extensible Real-time, Service Monitoring Utility: ServiceMon Release 0.9.0.44: Auto-uploaded from build serverJavaScript Grid: Release 09-05-2012: Release 09-05-2012xUnit.net Contrib: xunitcontrib-dotCover 0.6.1 (dotCover 2.1 beta): xunitcontrib release 0.6.1 for dotCover 2.1 beta This release provides a test runner plugin for dotCover 2.1 beta, targetting all versions of xUnit.net. (See the xUnit.net project to download xUnit.net itself.) This release adds support for running xUnit.net tests to dotCover 2.1 beta's Visual Studio plugin. PLEASE NOTE: You do NOT need this if you also have ReSharper and the existing 0.6.1 release installed. DotCover will use ReSharper's test runners if available. This release includes th...B INI Sharp Library: B INI Sharp Library v1.0.0.0 Realsed: The frist realsedActive Forums for DotNetNuke CMS: Active Forums 5.0.0 RC: RC release of Active Forums 5.0.Droid Explorer: Droid Explorer 0.8.8.7 Beta: Bug in the display icon for apk's, will fix with next release Added fallback icon if unable to get the image/icon from the Cloud Service Removed some stale plugins that were either out dated or incomplete. Added handler for *.ab files for restoring backups Added plugin to create device backups Backups stored in %USERPROFILE%\Android Backups\%DEVICE_ID%\ Added custom folder icon for the android backups directory better error handling for installing an apk bug fixes for the Runn...BI System Monitor: v2.1: Data Audits report and supporting SQL, and SSIS package Environment Overview report enhancements, improving the appearance, addition of data audit finding indicators Note: SQL 2012 version coming soon.The Visual Guide for Building Team Foundation Server 2012 Environments: Version 1: --Nearforums - ASP.NET MVC forum engine: Nearforums v8.5: Version 8.5 of Nearforums, the ASP.NET MVC Forum Engine. New features include: Built-in search engine using Lucene.NET Flood control improvements Notifications improvements: sync option and mail body View Roadmap for more details webdeploy package sha1 checksum: 961aff884a9187b6e8a86d68913cdd31f8deaf83WiX Toolset: WiX Toolset v3.6: WiX Toolset v3.6 introduces the Burn bootstrapper/chaining engine and support for Visual Studio 2012 and .NET Framework 4.5. Other minor functionality includes: WixDependencyExtension supports dependency checking among MSI packages. WixFirewallExtension supports more features of Windows Firewall. WixTagExtension supports Software Id Tagging. WixUtilExtension now supports recursive directory deletion. Melt simplifies pure-WiX patching by extracting .msi package content and updating .w...Iveely Search Engine: Iveely Search Engine (0.2.0): ????ISE?0.1.0??,?????,ISE?0.2.0?????????,???????,????????20???follow?ISE,????,??ISE??????????,??????????,?????????,?????????0.2.0??????,??????????。 Iveely Search Engine ?0.2.0?????????“??????????”,??????,?????????,???????,???????????????????,????、????????????。???0.1.0????????????: 1. ??“????” ??。??????????,?????????,???????????????????。??:????????,????????????,??????????????????。??????。 2. ??“????”??。?0.1.0??????,???????,???????????????,?????????????,????????,?0.2.0?,???????...GmailDefaultMaker: GmailDefaultMaker 3.0.0.2: Add QQ Mail BugfixSmart Data Access layer: Smart Data access Layer Ver 3: In this version support executing inline query is added. Check Documentation section for detail.DotNetNuke® Form and List: 06.00.04: DotNetNuke Form and List 06.00.04 Don't forget to backup your installation before upgrade. Changes in 06.00.04 Fix: Sql Scripts for 6.003 missed object qualifiers within stored procedures Fix: added missing resource "cmdCancel.Text" in form.ascx.resx Changes in 06.00.03 Fix: MakeThumbnail was broken if the application pool was configured to .Net 4 Change: Data is now stored in nvarchar(max) instead of ntext Changes in 06.00.02 The scripts are now compatible with SQL Azure, tested in a ne...Coevery - Free CRM: Coevery 1.0.0.24: Add a sample database, and installation instructions.New ProjectsA Simple Eng-Hindi CMS: A simple English- Hindi dual language content management system for small business/personal websites.Active Social Migrator: This project for managing the Active Social migration tool.ANSI Console User Control: Custom console control for .NET WinformsAutoSPInstallerGUI: GUI Configuration Tool for SPAutoInstaller Codeplex ProjectCode Documentation Checkin Policy: This checkin policy for Visual Studio 2012 checks if c# code is documented the way it's configured in the config of the policy. Code Dojo/Kata - Free Time Coding: Doing some katas of the Coding Dojo page. http://codingdojo.org/cgi-bin/wiki.pl?KataCataloguefjycUnifyShow: fjycUnifyShowHidden Capture (HC): HC is simple and easy utility to hidden and auto capture desktop or active windowHRC Integration Services: Fake SQL Server Integration Services. LOLKooboo CMS Sites Switcher: Kooboo CMS Sites SwitcherMod.CookieDetector: Orchard module for detecting whether cookies are enabledMyCodes: Created!MySQL Statement Monitor: MySQL Statement Monitor is a monitoring tool that monitors SQL statements transferred over the network.NeoModulusPIRandom: The idea with PI Random is to use easy string manipulation and simple math to generate a pseudo random number. Net Core Tech - Medical Record System: This is a Medical Record System ProjectOraPowerShell: PowerShell library for backup and maintenance of a Oracle Database environment under Microsoft Windows 2008PinDNN: PinDNN is a module that imparts Pinterest-like functionality to DotNetNuke sites. This module works with a MongoDB database and uses the built-in social relatioPyrogen Code Generator: PyroGen is a simple code generator accepting C# as the markup language.restMs: wil be deleted soonScript.NET: Script.NET is a script management utility for web forms and MVC, using ScriptJS-like features to link dependencies between scripts.SpringExample-Pagination: Simple Spring example with PaginationXNA and Component Based Design: This project includes code for XNA and Component Based Design

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  • Pantheon Not Completely Installed?

    - by Simon
    I have just installed the pantheon shell today, and I have not found any help with this yet. I am not just a random noob, i use a bunch of other shells and i also have a few development applications on my copy of ubuntu. But ever since ive opened up pantheon, i cannot find settings or this thing called the launchpad. (if the launchpad is the app drawer up in the upper left corner, or if its the dock. i have it, if thats not what launchpad is, then i cant access it.) I can only change my wallpaper by going back to unity, gnome, or KDE. There is a system settings in the power menu (upper right), but it only has Language Support, Ubuntu One, Additional Drivers, And Printing. I can still access the full ubuntu settings in GNOME of Unity. But thats it. I installed in the terminal, uninstalled, and reinstalled using the software center. Please Help Me If Any Of You Can! Thanks!!!

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  • Error 5 partition table invalid or corrupt

    - by Clodoaldo
    I'm trying to add a second SSD to a Centos 6 system. But I get the Error 5 partition table invalid or corrupt at boot. The system already has a single SSD (sdb) and a pair of HDDs (sd{a,c}) in a RAID 1 array from where it boots. It is as if the new SSD assumes one of the devices of the RAID array. Is it? How to avoid that or rearrange the setup? # cat fstab UUID=967b4035-782d-4c66-b22f-50244fe970ca / ext4 defaults 1 1 UUID=86fd06e9-cdc9-4166-ba9f-c237cfc43e02 /boot ext4 defaults 1 2 UUID=72552a7a-d8ae-4f0a-8917-b75a6239ce9f /ssd ext4 discard,relatime 1 2 UUID=8000e5e6-caa2-4765-94f8-9caeb2bda26e swap swap defaults 0 0 tmpfs /dev/shm tmpfs defaults 0 0 devpts /dev/pts devpts gid=5,mode=620 0 0 sysfs /sys sysfs defaults 0 0 proc /proc proc defaults 0 0 # ll /dev/disk/by-id/ total 0 lrwxrwxrwx. 1 root root 9 Jun 15 23:50 ata-OCZ-VERTEX3_OCZ-43DSRFTNCLE9ZJXX -> ../../sdb lrwxrwxrwx. 1 root root 10 Jun 15 23:50 ata-OCZ-VERTEX3_OCZ-43DSRFTNCLE9ZJXX-part1 -> ../../sdb1 lrwxrwxrwx. 1 root root 9 Jun 15 23:50 ata-ST3500413AS_5VMT49E3 -> ../../sdc lrwxrwxrwx. 1 root root 10 Jun 15 23:50 ata-ST3500413AS_5VMT49E3-part1 -> ../../sdc1 lrwxrwxrwx. 1 root root 10 Jun 15 23:50 ata-ST3500413AS_5VMT49E3-part2 -> ../../sdc2 lrwxrwxrwx. 1 root root 10 Jun 15 23:50 ata-ST3500413AS_5VMT49E3-part3 -> ../../sdc3 lrwxrwxrwx. 1 root root 9 Jun 15 23:50 ata-ST3500413AS_5VMTJNAJ -> ../../sda lrwxrwxrwx. 1 root root 10 Jun 15 23:50 ata-ST3500413AS_5VMTJNAJ-part1 -> ../../sda1 lrwxrwxrwx. 1 root root 10 Jun 15 23:50 ata-ST3500413AS_5VMTJNAJ-part2 -> ../../sda2 lrwxrwxrwx. 1 root root 10 Jun 15 23:50 ata-ST3500413AS_5VMTJNAJ-part3 -> ../../sda3 lrwxrwxrwx. 1 root root 9 Jun 15 23:50 md-name-localhost.localdomain:0 -> ../../md0 lrwxrwxrwx. 1 root root 9 Jun 15 23:50 md-name-localhost.localdomain:1 -> ../../md1 lrwxrwxrwx. 1 root root 9 Jun 15 23:50 md-name-localhost.localdomain:2 -> ../../md2 lrwxrwxrwx. 1 root root 9 Jun 15 23:50 md-uuid-a04d7241:8da6023e:f9004352:107a923a -> ../../md1 lrwxrwxrwx. 1 root root 9 Jun 15 23:50 md-uuid-a22c43b9:f1954990:d3ddda5e:f9aff3c9 -> ../../md0 lrwxrwxrwx. 1 root root 9 Jun 15 23:50 md-uuid-f403a2d0:447803b5:66edba73:569f8305 -> ../../md2 lrwxrwxrwx. 1 root root 9 Jun 15 23:50 scsi-SATA_OCZ-VERTEX3_OCZ-43DSRFTNCLE9ZJXX -> ../../sdb lrwxrwxrwx. 1 root root 10 Jun 15 23:50 scsi-SATA_OCZ-VERTEX3_OCZ-43DSRFTNCLE9ZJXX-part1 -> ../../sdb1 lrwxrwxrwx. 1 root root 9 Jun 15 23:50 scsi-SATA_ST3500413AS_5VMT49E3 -> ../../sdc lrwxrwxrwx. 1 root root 10 Jun 15 23:50 scsi-SATA_ST3500413AS_5VMT49E3-part1 -> ../../sdc1 lrwxrwxrwx. 1 root root 10 Jun 15 23:50 scsi-SATA_ST3500413AS_5VMT49E3-part2 -> ../../sdc2 lrwxrwxrwx. 1 root root 10 Jun 15 23:50 scsi-SATA_ST3500413AS_5VMT49E3-part3 -> ../../sdc3 lrwxrwxrwx. 1 root root 9 Jun 15 23:50 scsi-SATA_ST3500413AS_5VMTJNAJ -> ../../sda lrwxrwxrwx. 1 root root 10 Jun 15 23:50 scsi-SATA_ST3500413AS_5VMTJNAJ-part1 -> ../../sda1 lrwxrwxrwx. 1 root root 10 Jun 15 23:50 scsi-SATA_ST3500413AS_5VMTJNAJ-part2 -> ../../sda2 lrwxrwxrwx. 1 root root 10 Jun 15 23:50 scsi-SATA_ST3500413AS_5VMTJNAJ-part3 -> ../../sda3 lrwxrwxrwx. 1 root root 9 Jun 15 23:50 wwn-0x5000c500383621ff -> ../../sdc lrwxrwxrwx. 1 root root 10 Jun 15 23:50 wwn-0x5000c500383621ff-part1 -> ../../sdc1 lrwxrwxrwx. 1 root root 10 Jun 15 23:50 wwn-0x5000c500383621ff-part2 -> ../../sdc2 lrwxrwxrwx. 1 root root 10 Jun 15 23:50 wwn-0x5000c500383621ff-part3 -> ../../sdc3 lrwxrwxrwx. 1 root root 9 Jun 15 23:50 wwn-0x5000c5003838b2e7 -> ../../sda lrwxrwxrwx. 1 root root 10 Jun 15 23:50 wwn-0x5000c5003838b2e7-part1 -> ../../sda1 lrwxrwxrwx. 1 root root 10 Jun 15 23:50 wwn-0x5000c5003838b2e7-part2 -> ../../sda2 lrwxrwxrwx. 1 root root 10 Jun 15 23:50 wwn-0x5000c5003838b2e7-part3 -> ../../sda3 lrwxrwxrwx. 1 root root 9 Jun 15 23:50 wwn-0x5e83a97f592139d6 -> ../../sdb lrwxrwxrwx. 1 root root 10 Jun 15 23:50 wwn-0x5e83a97f592139d6-part1 -> ../../sdb1 # fdisk -l Disk /dev/sdb: 120.0 GB, 120034123776 bytes 255 heads, 63 sectors/track, 14593 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x79298ec9 Device Boot Start End Blocks Id System /dev/sdb1 1 14594 117219328 83 Linux Disk /dev/sdc: 500.1 GB, 500107862016 bytes 255 heads, 63 sectors/track, 60801 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x000d99de Device Boot Start End Blocks Id System /dev/sdc1 1 1275 10240000 fd Linux raid autodetect /dev/sdc2 * 1275 1339 512000 fd Linux raid autodetect /dev/sdc3 1339 60802 477633536 fd Linux raid autodetect Disk /dev/sda: 500.1 GB, 500107862016 bytes 255 heads, 63 sectors/track, 60801 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x000b3327 Device Boot Start End Blocks Id System /dev/sda1 1 1275 10240000 fd Linux raid autodetect /dev/sda2 * 1275 1339 512000 fd Linux raid autodetect /dev/sda3 1339 60802 477633536 fd Linux raid autodetect Disk /dev/md0: 10.5 GB, 10484641792 bytes 2 heads, 4 sectors/track, 2559727 cylinders Units = cylinders of 8 * 512 = 4096 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/md0 doesn't contain a valid partition table Disk /dev/md2: 489.1 GB, 489095557120 bytes 2 heads, 4 sectors/track, 119408095 cylinders Units = cylinders of 8 * 512 = 4096 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/md2 doesn't contain a valid partition table Disk /dev/md1: 524 MB, 524275712 bytes 2 heads, 4 sectors/track, 127997 cylinders Units = cylinders of 8 * 512 = 4096 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/md1 doesn't contain a valid partition table # cat /etc/grub.conf default=0 timeout=5 splashimage=(hd2,1)/grub/splash.xpm.gz hiddenmenu title CentOS (2.6.32-220.17.1.el6.x86_64) root (hd2,1) kernel /vmlinuz-2.6.32-220.17.1.el6.x86_64 ro root=UUID=967b4035-782d-4c66-b22f-50244fe970ca rd_MD_UUID=f403a2d0:447803b5:66edba73:569f8305 rd_MD_UUID=a22c43b9:f1954990:d3ddda5e:f9aff3c9 rd_NO_LUKS rd_NO_LVM rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=br-abnt2 crashkernel=auto rhgb quiet initrd /initramfs-2.6.32-220.17.1.el6.x86_64.img

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  • Choosing the Database Solution for Large Data Application

    - by GµårÐïåñ
    I have been tasked to write an application that will be a combination of document and inventory management in VB.net which will be used to store document images in TIFF, PDF, XPS, TXT, DOC, PPT and so on as binary data that can be retrieved for viewing, printing, and possible OCR to be searchable as well along with meta data such as sender, recipient, type of document, date, source, etc. So the table would probably be something like: DOC_NAME, DOC_DATE, NOTES, ... DOC_BINARY (where the actual document will be put inside) What my concern is finding a database solution that will not become unstable due to size restrictions, records limitations and performance. Some of the options are MS_SQL, SQL Express, SQLite, mySQL, and Access. Now I can pretty much eliminate Access right off the bat as it is just too limiting and not scalable. I can further eliminate SQL Express because of the 2 GB limit and again scalability. So that leaves me with MS_SQL, SQLite and mySQL (although if anyone has other options they think would be good as well, please feel free to share them, by no means am I set on these only). So this brings me to what you guys think is the best option for what I have described. The goal is that the data is all in one place (a single file) that will make backup and portability easier. For small volume usage, pretty much any solution will hold for a while, but my goal is to think ahead and make sure its able to withstand heavy large volume usage as well. Another consideration is also the interoperability with .NET and stability of such code to avoid errors and memory leaks. Your feedback would be greatly appreciated.

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  • Are you reporting Visual Studio 2012 issues to Microsoft correctly?

    - by Tarun Arora
    Issues you may run into while using Visual Studio need to be reported to the Microsoft Product Team via the Microsoft connect site. The Microsoft team then tries to reproduce the issue using the details provided by you. If the information you provide isn’t sufficient to reproduce the issue the team tries to contact you for specifics, this not only increases the cycle time to resolution but the lack of communication also results in issues not being resolved. So, when I report an issue one part of me tells me to include as much detail about the issue as I can clubbing screen shots, repo steps, system information, visual studio version information,… the other half tells me this is so time consuming, leave it for now and come back to fill all these details later. Reporting a bug but not including the supporting information is an invitation to excuses like …     Microsoft has absolutely changed this experience for VS 2012. The Microsoft Visual Studio Feedback tool is designed to simplify the process of providing feedback and reporting issues to Microsoft that you may encounter while using Microsoft Visual Studio 2012. Note – The Microsoft Visual Studio 2012 Feedback client currently only works for VS 2012 and not any other versions of Visual Studio. Setting up the Microsoft Visual Studio 2012 Feedback client Open Visual Studio, from the Tools menu select Extension and Updates. In the Extension and Updates window, click Online from the left pane and search using the text ‘feedback’, download and Install Microsoft Visual Studio 2012 Feedback Tool by following the instructions from the wizard. Note - Restarting Visual Studio after the install is a must! How to report a bug for Visual Studio 2012? Click on the Help menu and choose Report a Bug You should see an icon Microsoft Visual Studio 2012 Feedback Tool come up in the system tray icon area You’ll need to accept the Privacy statement. You have the option of reporting the feedback as private or public. Microsoft works with several Partners, MVP’s and Vendors who get access to early bits of Microsoft products for valuation. This is where it becomes essential to report the feedback privately. I would choose the Public option otherwise. After all if it’s out there in the public, others can discover and add to it easily. You now have the option to report a new issue or add to an existing issue. Should you choose to add to an existing issue you should have the feedback ID of the issue available. This can be obtained from the Microsoft Connect site. For now I am going to focus on reporting a new feedback privately. Filling out the feedback details You will notice that VsInfo.xml and DxDiagOutput.txt are automatically attached as you enter this screen (more on that later).  Feedback Type Choose the feedback type from (Performance, Hang, Crash, Other) Note – The record button will only be enabled once you have enabled once you have chosen the feedback type, Bug-repro recording is not available for Windows Server 2008.     Effective Title and Description Enter a title that helps us differentiate the bug when it appears in a list, so that we can group it with any related bugs, assign it to a developer more effectively, and resolve it more quickly. Example: Imagine that you are submitting a bug because you tried to install Service Pack 1 and got a message that Visual Studio is not installed even though it is. Helpful:  Installed Visual Studio version not detected during Service Pack 1 setup. Not helpful:  Service Pack 1 problem. Tip: Write the problem description first, and then distil it to create a title. Example Description: Helpful: When I run Service Pack 1 Setup, I get the message "No Visual Studio version is detected" even though I have Visual Studio 2010 Ultimate and Visual C++ 2010 Express installed on my machine. Even though I uninstalled both editions, and then first reinstalled Ultimate and then Express, I still get the message. Record: Becoming a first class citizen Often a repro report is invaluable to describe and decipher the issue. Please use this feature to send actionable feedback. The record repro feature works differently depending on the feedback type you selected. Please find below details for each recording option. You can start recording simply by selecting a feedback type, and clicking on the “Record” button. When "Performance" is the bug type: When the Microsoft Visual Studio trace recorder starts, perform the actions that show the performance problem you want to report and then click on the "Stop Recording" button as soon as you experience the performance problem. Because the tool optimizes trace collection, you can run it for as long as it takes to show the problem, up to two hours. Note that, you need to stop recording as soon as the performance issue occurs, because the tool captures only the last couple minutes of your actions to optimize the trace collection. After you stop the recording, the tool takes up to two minutes to assemble the data and attach an ETLTrace.zip file to your bug report. The data includes information about Windows events and the Visual Studio code path. Note that, running the Microsoft Visual Studio trace recorder requires elevated user privilege. When "Crash" is the bug type: When the dialog box appears, select the running Visual Studio instance for which you want to show the steps that cause a crash. When the crash occurs, click on the "Stop Record" button. After you do this, two files are attached to your bug report - an AutomaticCrashDump.zip file that contains information about the crash and a ReproSteps.zip file that shows the repro steps. Repro steps are captured by Windows Problem Steps Recorder. Note that, you can pause the recording, and resume later, or for a specific step, you can add additional comments. When "Hang" is the bug type: The process for recording the steps that cause a hang resembles the one for crashes. The difference is, you can even collect a dump file after the VS hangs; start the VSFT either from the system tray or by starting a new instance of VS, select "Hang" as feedback type and click on the "Record" button. You will be prompted which VS to collect dump about, select the VS instance that hanged. VSFT collects a dump file regarding the hang, called MiniDump.zip, and attaches to your bug report. When "Other" is the bug type: When the problem step recorder starts, perform the actions that show the issue you want to report and then choose the "Stop” button. You can pause the recording, and resume later, or for a specific step, you can add additional comments. Once you’re done, ReproSteps.zip is added to your bug report. Pre-attached files It is essential for Microsoft to know what version of the the product are you currently using and what is the current configuration of your system. Note – The total size of all attachments in a bug report cannot exceed 2 GB, and every uncompressed attachment must be smaller than 512 MB. We recommend that you assemble all of your attachments, compress them together into a .zip file, and then attach the .zip file. Taking a screenshot Associate a screen shot by clicking the Take screenshot button, choose either the entire desktop, the specific monitor (useful if you are working in a multi monitor configuration) or the specific window in question. And finally … click Submit If you need further help, more details can be found here. You can view your feedback online by using the following URL “">https://connect.microsoft.com/VisualStudio/SearchResults.aspx?SearchQuery=<feedbackId>” Happy bug logging

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  • FOUR questions to ask if you are implementing DATABASE-AS-A-SERVICE

    - by Sudip Datta
    During my ongoing tenure at Oracle, I have met all types of DBAs. Happy DBAs, unhappy DBAs, proud DBAs, risk-loving DBAs, cautious DBAs. These days, as Database-as-a-Service (DBaaS) becomes more mainstream, I find some complacent DBAs who are basking in their achievement of having implemented DBaaS. Some others, however, are not that happy. They grudgingly complain that they did not have much of a say in the implementation, they simply had to follow what their cloud architects (mostly infrastructure admins) offered them. In most cases it would be a database wrapped inside a VM that would be labeled as “Database as a Service”. In other cases, it would be existing brute-force automation simply exposed in a portal. As much as I think that there is more to DBaaS than those approaches and often get tempted to propose Enterprise Manager 12c, I try to be objective. Neither do I want to dampen the spirit of the happy ones, nor do I want to stoke the pain of the unhappy ones. As I mentioned in my previous post, I don’t deny vanilla automation could be useful. I like virtualization too for what it has helped us accomplish in terms of resource management, but we need to scrutinize its merit on a case-by-case basis and apply it meaningfully. For DBAs who either claim to have implemented DBaaS or are planning to do so, I simply want to provide four key questions to ponder about: 1. Does it make life easier for your end users? Database-as-a-Service can have several types of end users. Junior DBAs, QA Engineers, Developers- each having their own skillset. The objective of DBaaS is to make their life simple, so that they can focus on their core responsibilities without having to worry about additional stuff. For example, if you are a Developer using Oracle Application Express (APEX), you want to deal with schema, objects and PL/SQL code and not with datafiles or listener configuration. If you are a QA Engineer needing database copies for functional testing, you do not want to deal with underlying operating system patching and compliance issues. The question to ask, therefore, is, whether DBaaS makes life easier for those users. It is often convenient to give them VM shells to deal with a la Amazon EC2 IaaS, but is that what they really want? Is it a productive use of a developer's time if he needs to apply RPM errata to his Linux operating system. Asking him to keep the underlying operating system current is like making a guest responsible for a restaurant's decor. 2. Does it make life easier for your administrators? Cloud, in general, is supposed to free administrators from attending to mundane tasks like provisioning services for every single end user request. It is supposed to enable a readily consumable platform and enforce standardization in the process. For example, if a Service Catalog exposes DBaaS of specific database versions and configurations, it, by its very nature, enforces certain discipline and standardization within the IT environment. What if, instead of specific database configurations, cloud allowed each end user to create databases of their liking resulting in hundreds of version and patch levels and thousands of individual databases. Therefore the right question to ask is whether the unwanted consequence of DBaaS is OS and database sprawl. And if so, who is responsible for tracking them, backing them up, administering them? Studies have shown that these administrative overheads increase exponentially with new targets, and it could result in a management nightmare. That leads us to our next question. 3. Does it satisfy your Security Officers and Compliance Auditors? Compliance Auditors need to know who did what and when. They also want the cloud platform to be secure, so that end users have little freedom in tampering with it. Dealing with VM sprawl is not the easiest of challenges, let alone dealing with them as they keep getting reconfigured and moved around. This leads to the proverbial needle in the haystack problem, and all it needs is one needle to cause a serious compliance issue in the enterprise. Bottomline is, flexibility and agility should not come at the expense of compliance and it is very important to get the balance right. Can we have security and isolation without creating compliance challenges? Instead of a ‘one size fits all approach’ i.e. OS level isolation, can we think smartly about database isolation or schema based isolation? This is where the appropriate resource modeling needs to be applied. The usual systems management vendors out there with heterogeneous common-denominator approach have compromised on these semantics. If you follow Enterprise Manager’s DBaaS solution, you will see that we have considered different models, not precluding virtualization, for different customer use cases. The judgment to use virtual assemblies versus databases on physical RAC versus Schema-as-a-Service in a single database, should be governed by the need of the applications and not by putting compliance considerations in the backburner. 4. Does it satisfy your CIO? Finally, does it satisfy your higher ups? As the sponsor of cloud initiative, the CIO is expected to lead an IT transformation project, not merely a run-of-the-mill IT operations. Simply virtualizing server resources and delivering them through self-service is a good start, but hardly transformational. CIOs may appreciate the instant benefit from server consolidation, but studies have revealed that the ROI from consolidation would flatten out at 20-25%. The question would be: what next? As we go higher up in the stack, the need to virtualize, segregate and optimize shifts to those layers that are more palpable to the business users. As Sushil Kumar noted in his blog post, " the most important thing to note here is the enterprise private cloud is not just an IT project, rather it is a business initiative to create an IT setup that is more aligned with the needs of today's dynamic and highly competitive business environment." Business users could not care less about infrastructure consolidation or virtualization - they care about business agility and service level assurance. Last but not the least, lot of CIOs get miffed if we ask them to throw away their existing hardware investments for implementing DBaaS. In Oracle, we always emphasize on freedom of choosing a platform; hence Enterprise Manager’s DBaaS solution is platform neutral. It can work on any Operating System (that the agent is certified on) Oracle’s hardware as well as 3rd party hardware. As a parting note, I urge you to remember these 4 questions. Remember that your satisfaction as an implementer lies in the satisfaction of others.

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  • Error 22 no such partition on adding a SSD

    - by Clodoaldo
    I'm trying to add a second SSD to a Centos 6 system. But I get the error 22 no such partition at boot. The system already has a single SSD (sdb) and a pair of HDDs (sd{a,c}) in a RAID 1 array from where it boots. It is as if the new SSD assumes one of the devices of the RAID array. Is it? How to avoid that or rearrange the setup? # cat fstab UUID=967b4035-782d-4c66-b22f-50244fe970ca / ext4 defaults 1 1 UUID=86fd06e9-cdc9-4166-ba9f-c237cfc43e02 /boot ext4 defaults 1 2 UUID=72552a7a-d8ae-4f0a-8917-b75a6239ce9f /ssd ext4 discard,relatime 1 2 UUID=8000e5e6-caa2-4765-94f8-9caeb2bda26e swap swap defaults 0 0 tmpfs /dev/shm tmpfs defaults 0 0 devpts /dev/pts devpts gid=5,mode=620 0 0 sysfs /sys sysfs defaults 0 0 proc /proc proc defaults 0 0 # ll /dev/disk/by-id/ total 0 lrwxrwxrwx. 1 root root 9 Jun 15 23:50 ata-OCZ-VERTEX3_OCZ-43DSRFTNCLE9ZJXX -> ../../sdb lrwxrwxrwx. 1 root root 10 Jun 15 23:50 ata-OCZ-VERTEX3_OCZ-43DSRFTNCLE9ZJXX-part1 -> ../../sdb1 lrwxrwxrwx. 1 root root 9 Jun 15 23:50 ata-ST3500413AS_5VMT49E3 -> ../../sdc lrwxrwxrwx. 1 root root 10 Jun 15 23:50 ata-ST3500413AS_5VMT49E3-part1 -> ../../sdc1 lrwxrwxrwx. 1 root root 10 Jun 15 23:50 ata-ST3500413AS_5VMT49E3-part2 -> ../../sdc2 lrwxrwxrwx. 1 root root 10 Jun 15 23:50 ata-ST3500413AS_5VMT49E3-part3 -> ../../sdc3 lrwxrwxrwx. 1 root root 9 Jun 15 23:50 ata-ST3500413AS_5VMTJNAJ -> ../../sda lrwxrwxrwx. 1 root root 10 Jun 15 23:50 ata-ST3500413AS_5VMTJNAJ-part1 -> ../../sda1 lrwxrwxrwx. 1 root root 10 Jun 15 23:50 ata-ST3500413AS_5VMTJNAJ-part2 -> ../../sda2 lrwxrwxrwx. 1 root root 10 Jun 15 23:50 ata-ST3500413AS_5VMTJNAJ-part3 -> ../../sda3 lrwxrwxrwx. 1 root root 9 Jun 15 23:50 md-name-localhost.localdomain:0 -> ../../md0 lrwxrwxrwx. 1 root root 9 Jun 15 23:50 md-name-localhost.localdomain:1 -> ../../md1 lrwxrwxrwx. 1 root root 9 Jun 15 23:50 md-name-localhost.localdomain:2 -> ../../md2 lrwxrwxrwx. 1 root root 9 Jun 15 23:50 md-uuid-a04d7241:8da6023e:f9004352:107a923a -> ../../md1 lrwxrwxrwx. 1 root root 9 Jun 15 23:50 md-uuid-a22c43b9:f1954990:d3ddda5e:f9aff3c9 -> ../../md0 lrwxrwxrwx. 1 root root 9 Jun 15 23:50 md-uuid-f403a2d0:447803b5:66edba73:569f8305 -> ../../md2 lrwxrwxrwx. 1 root root 9 Jun 15 23:50 scsi-SATA_OCZ-VERTEX3_OCZ-43DSRFTNCLE9ZJXX -> ../../sdb lrwxrwxrwx. 1 root root 10 Jun 15 23:50 scsi-SATA_OCZ-VERTEX3_OCZ-43DSRFTNCLE9ZJXX-part1 -> ../../sdb1 lrwxrwxrwx. 1 root root 9 Jun 15 23:50 scsi-SATA_ST3500413AS_5VMT49E3 -> ../../sdc lrwxrwxrwx. 1 root root 10 Jun 15 23:50 scsi-SATA_ST3500413AS_5VMT49E3-part1 -> ../../sdc1 lrwxrwxrwx. 1 root root 10 Jun 15 23:50 scsi-SATA_ST3500413AS_5VMT49E3-part2 -> ../../sdc2 lrwxrwxrwx. 1 root root 10 Jun 15 23:50 scsi-SATA_ST3500413AS_5VMT49E3-part3 -> ../../sdc3 lrwxrwxrwx. 1 root root 9 Jun 15 23:50 scsi-SATA_ST3500413AS_5VMTJNAJ -> ../../sda lrwxrwxrwx. 1 root root 10 Jun 15 23:50 scsi-SATA_ST3500413AS_5VMTJNAJ-part1 -> ../../sda1 lrwxrwxrwx. 1 root root 10 Jun 15 23:50 scsi-SATA_ST3500413AS_5VMTJNAJ-part2 -> ../../sda2 lrwxrwxrwx. 1 root root 10 Jun 15 23:50 scsi-SATA_ST3500413AS_5VMTJNAJ-part3 -> ../../sda3 lrwxrwxrwx. 1 root root 9 Jun 15 23:50 wwn-0x5000c500383621ff -> ../../sdc lrwxrwxrwx. 1 root root 10 Jun 15 23:50 wwn-0x5000c500383621ff-part1 -> ../../sdc1 lrwxrwxrwx. 1 root root 10 Jun 15 23:50 wwn-0x5000c500383621ff-part2 -> ../../sdc2 lrwxrwxrwx. 1 root root 10 Jun 15 23:50 wwn-0x5000c500383621ff-part3 -> ../../sdc3 lrwxrwxrwx. 1 root root 9 Jun 15 23:50 wwn-0x5000c5003838b2e7 -> ../../sda lrwxrwxrwx. 1 root root 10 Jun 15 23:50 wwn-0x5000c5003838b2e7-part1 -> ../../sda1 lrwxrwxrwx. 1 root root 10 Jun 15 23:50 wwn-0x5000c5003838b2e7-part2 -> ../../sda2 lrwxrwxrwx. 1 root root 10 Jun 15 23:50 wwn-0x5000c5003838b2e7-part3 -> ../../sda3 lrwxrwxrwx. 1 root root 9 Jun 15 23:50 wwn-0x5e83a97f592139d6 -> ../../sdb lrwxrwxrwx. 1 root root 10 Jun 15 23:50 wwn-0x5e83a97f592139d6-part1 -> ../../sdb1 # fdisk -l Disk /dev/sdb: 120.0 GB, 120034123776 bytes 255 heads, 63 sectors/track, 14593 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x79298ec9 Device Boot Start End Blocks Id System /dev/sdb1 1 14594 117219328 83 Linux Disk /dev/sdc: 500.1 GB, 500107862016 bytes 255 heads, 63 sectors/track, 60801 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x000d99de Device Boot Start End Blocks Id System /dev/sdc1 1 1275 10240000 fd Linux raid autodetect /dev/sdc2 * 1275 1339 512000 fd Linux raid autodetect /dev/sdc3 1339 60802 477633536 fd Linux raid autodetect Disk /dev/sda: 500.1 GB, 500107862016 bytes 255 heads, 63 sectors/track, 60801 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x000b3327 Device Boot Start End Blocks Id System /dev/sda1 1 1275 10240000 fd Linux raid autodetect /dev/sda2 * 1275 1339 512000 fd Linux raid autodetect /dev/sda3 1339 60802 477633536 fd Linux raid autodetect Disk /dev/md0: 10.5 GB, 10484641792 bytes 2 heads, 4 sectors/track, 2559727 cylinders Units = cylinders of 8 * 512 = 4096 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/md0 doesn't contain a valid partition table Disk /dev/md2: 489.1 GB, 489095557120 bytes 2 heads, 4 sectors/track, 119408095 cylinders Units = cylinders of 8 * 512 = 4096 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/md2 doesn't contain a valid partition table Disk /dev/md1: 524 MB, 524275712 bytes 2 heads, 4 sectors/track, 127997 cylinders Units = cylinders of 8 * 512 = 4096 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/md1 doesn't contain a valid partition table # cat /etc/grub.conf default=0 timeout=5 splashimage=(hd2,1)/grub/splash.xpm.gz hiddenmenu title CentOS (2.6.32-220.17.1.el6.x86_64) root (hd2,1) kernel /vmlinuz-2.6.32-220.17.1.el6.x86_64 ro root=UUID=967b4035-782d-4c66-b22f-50244fe970ca rd_MD_UUID=f403a2d0:447803b5:66edba73:569f8305 rd_MD_UUID=a22c43b9:f1954990:d3ddda5e:f9aff3c9 rd_NO_LUKS rd_NO_LVM rd_NO_DM LANG=en_US.UTF-8 SYSFONT=latarcyrheb-sun16 KEYBOARDTYPE=pc KEYTABLE=br-abnt2 crashkernel=auto rhgb quiet initrd /initramfs-2.6.32-220.17.1.el6.x86_64.img

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  • Linux server is only using 60% of memory, then swapping

    - by Kamil Kisiel
    I've got a Linux server that's running our bacula backup system. The machine is grinding like mad because it's going heavy in to swap. The problem is, it's only using 60% of its physical memory! Here's the output from free -m: free -m total used free shared buffers cached Mem: 3949 2356 1593 0 0 1 -/+ buffers/cache: 2354 1595 Swap: 7629 1804 5824 and some sample output from vmstat 1: procs -----------memory---------- ---swap-- -----io---- -system-- -----cpu------ r b swpd free buff cache si so bi bo in cs us sy id wa st 0 2 1843536 1634512 0 4188 54 13 2524 666 2 1 1 1 89 9 0 1 11 1845916 1640724 0 388 2700 4816 221880 4879 14409 170721 4 3 63 30 0 0 9 1846096 1643952 0 0 4956 756 174832 804 12357 159306 3 4 63 30 0 0 11 1846104 1643532 0 0 4916 540 174320 580 10609 139960 3 4 64 29 0 0 4 1846084 1640272 0 2336 4080 524 140408 548 9331 118287 3 4 63 30 0 0 8 1846104 1642096 0 1488 2940 432 102516 457 7023 82230 2 4 65 29 0 0 5 1846104 1642268 0 1276 3704 452 126520 452 9494 119612 3 5 65 27 0 3 12 1846104 1641528 0 328 6092 608 187776 636 8269 113059 4 3 64 29 0 2 2 1846084 1640960 0 724 5948 0 111480 0 7751 116370 4 4 63 29 0 0 4 1846100 1641484 0 404 4144 1476 125760 1500 10668 105358 2 3 71 25 0 0 13 1846104 1641932 0 0 5872 828 153808 840 10518 128447 3 4 70 22 0 0 8 1846096 1639172 0 3164 3556 556 74884 580 5082 65362 2 2 73 23 0 1 4 1846080 1638676 0 396 4512 28 50928 44 2672 38277 2 2 80 16 0 0 3 1846080 1628808 0 7132 2636 0 28004 8 1358 14090 0 1 78 20 0 0 2 1844728 1618552 0 11140 7680 0 12740 8 763 2245 0 0 82 18 0 0 2 1837764 1532056 0 101504 2952 0 95644 24 802 3817 0 1 87 12 0 0 11 1842092 1633324 0 4416 1748 10900 143144 11024 6279 134442 3 3 70 24 0 2 6 1846104 1642756 0 0 4768 468 78752 468 4672 60141 2 2 76 20 0 1 12 1846104 1640792 0 236 4752 440 140712 464 7614 99593 3 5 58 34 0 0 3 1846084 1630368 0 6316 5104 0 20336 0 1703 22424 1 1 72 26 0 2 17 1846104 1638332 0 3168 4080 1720 211960 1744 11977 155886 3 4 65 28 0 1 10 1846104 1640800 0 132 4488 556 126016 584 8016 106368 3 4 63 29 0 0 14 1846104 1639740 0 2248 3436 428 114188 452 7030 92418 3 3 59 35 0 1 6 1846096 1639504 0 1932 5500 436 141412 460 8261 112210 4 4 63 29 0 0 10 1846104 1640164 0 3052 4028 448 147684 472 7366 109554 4 4 61 30 0 0 10 1846100 1641040 0 2332 4952 632 147452 664 8767 118384 3 4 63 30 0 4 8 1846084 1641092 0 664 4948 276 152264 292 6448 98813 5 5 62 28 0 Furthermore, the output of top sorted by CPU time seems to support the theory that swap is what's bogging down the system: top - 09:05:32 up 37 days, 23:24, 1 user, load average: 9.75, 8.24, 7.12 Tasks: 173 total, 1 running, 172 sleeping, 0 stopped, 0 zombie Cpu(s): 1.6%us, 1.4%sy, 0.0%ni, 76.1%id, 20.6%wa, 0.1%hi, 0.2%si, 0.0%st Mem: 4044632k total, 2405628k used, 1639004k free, 0k buffers Swap: 7812492k total, 1851852k used, 5960640k free, 436k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ TIME COMMAND 4174 root 17 0 63156 176 56 S 8 0.0 2138:52 35,38 bacula-fd 4185 root 17 0 63352 284 104 S 6 0.0 1709:25 28,29 bacula-sd 240 root 15 0 0 0 0 D 3 0.0 831:55.19 831:55 kswapd0 2852 root 10 -5 0 0 0 S 1 0.0 126:35.59 126:35 xfsbufd 2849 root 10 -5 0 0 0 S 0 0.0 119:50.94 119:50 xfsbufd 1364 root 10 -5 0 0 0 S 0 0.0 117:05.39 117:05 xfsbufd 21 root 10 -5 0 0 0 S 1 0.0 48:03.44 48:03 events/3 6940 postgres 16 0 43596 8 8 S 0 0.0 46:50.35 46:50 postmaster 1342 root 10 -5 0 0 0 S 0 0.0 23:14.34 23:14 xfsdatad/4 5415 root 17 0 1770m 108 48 S 0 0.0 15:03.74 15:03 bacula-dir 23 root 10 -5 0 0 0 S 0 0.0 13:09.71 13:09 events/5 5604 root 17 0 1216m 500 200 S 0 0.0 12:38.20 12:38 java 5552 root 16 0 1194m 580 248 S 0 0.0 11:58.00 11:58 java Here's the same sorted by virtual memory image size: top - 09:08:32 up 37 days, 23:27, 1 user, load average: 8.43, 8.26, 7.32 Tasks: 173 total, 1 running, 172 sleeping, 0 stopped, 0 zombie Cpu(s): 3.6%us, 3.4%sy, 0.0%ni, 62.2%id, 30.2%wa, 0.2%hi, 0.3%si, 0.0%st Mem: 4044632k total, 2404212k used, 1640420k free, 0k buffers Swap: 7812492k total, 1852548k used, 5959944k free, 100k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ TIME COMMAND 5415 root 17 0 1770m 56 44 S 0 0.0 15:03.78 15:03 bacula-dir 5604 root 17 0 1216m 492 200 S 0 0.0 12:38.30 12:38 java 5552 root 16 0 1194m 476 200 S 0 0.0 11:58.20 11:58 java 4598 root 16 0 117m 44 44 S 0 0.0 0:13.37 0:13 eventmond 9614 gdm 16 0 93188 0 0 S 0 0.0 0:00.30 0:00 gdmgreeter 5527 root 17 0 78716 0 0 S 0 0.0 0:00.30 0:00 gdm 4185 root 17 0 63352 284 104 S 20 0.0 1709:52 28,29 bacula-sd 4174 root 17 0 63156 208 88 S 24 0.0 2139:25 35,39 bacula-fd 10849 postgres 18 0 54740 216 108 D 0 0.0 0:31.40 0:31 postmaster 6661 postgres 17 0 49432 0 0 S 0 0.0 0:03.50 0:03 postmaster 5507 root 15 0 47980 0 0 S 0 0.0 0:00.00 0:00 gdm 6940 postgres 16 0 43596 16 16 S 0 0.0 46:51.39 46:51 postmaster 5304 postgres 16 0 40580 132 88 S 0 0.0 6:21.79 6:21 postmaster 5301 postgres 17 0 40448 24 24 S 0 0.0 0:32.17 0:32 postmaster 11280 root 16 0 40288 28 28 S 0 0.0 0:00.11 0:00 sshd 5534 root 17 0 37580 0 0 S 0 0.0 0:56.18 0:56 X 30870 root 30 15 31668 28 28 S 0 0.0 1:13.38 1:13 snmpd 5305 postgres 17 0 30628 16 16 S 0 0.0 0:11.60 0:11 postmaster 27403 postfix 17 0 30248 0 0 S 0 0.0 0:02.76 0:02 qmgr 10815 postfix 15 0 30208 16 16 S 0 0.0 0:00.02 0:00 pickup 5306 postgres 16 0 29760 20 20 S 0 0.0 0:52.89 0:52 postmaster 5302 postgres 17 0 29628 64 32 S 0 0.0 1:00.64 1:00 postmaster I've tried tuning the swappiness kernel parameter to both high and low values, but nothing appears to change the behavior here. I'm at a loss to figure out what's going on. How can I find out what's causing this? Update: The system is a fully 64-bit system, so there should be no question of memory limitations due to 32-bit issues. Update2: As I mentioned in the original question, I've already tried tuning swappiness to all sorts of values, including 0. The result is always the same, with approximately 1.6 GB of memory remaining unused. Update3: Added top output to the above info.

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  • Do you sign contracts digitally or still on paper? And what do clients think?

    - by user1162541
    We are all getting used to checking a box and putting our name in a text field to create a contract with an airline, a hosting company, or a software download. However, for some reason I am still asking clients to sign our contracts for website development on paper, and send me a scan. Few complain about this procedure, but I am personally thinking: what am I doing, doing this the old fashion way?! Signing contracts digitally would be faster, more convenient for clients and for me, and easier to store. So to me it appears to be time to start creating some contract agreement online that clients can read, then print their name, and mark a box "I AGREE WITH THIS CONTRACT AND BY PRINTING MY NAME I AGREE TO SIGNING THIS", or something like that. I would record their IP, browser data, and time of signing. If I really want to ensure their identity, I could link this to OpenID and require them to log in with their e-mail so that I can ensure that they are logged in on an existing e-mail account. Sounds OK to me. My question is: is this practice becoming a standard practice in professional IT services? Are you (as a professional) doing this? If you are, how do clients react? Any drawbacks doing this? EDIT: This question is not about the legal aspects. It is about common practices among programmers and web-development companies, and what clients think of this.

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  • Grub can not boot after resizing windows XP (NTFS) partition. What is to be done? [closed]

    - by cipricus
    Possible Duplicate: How to Repair Grub while dual booting ( win7 / ubuntu 11.10) I had installed Lubuntu on a PC with Windows XP and used dual boot for some time with no problems. Since I had almost abandoned Windows (kept it for printing...) I decided to resize its ntfs partition and add the free space to my Ubuntu space. Tried that with a gparted stick and a live cd but would not work due to an issue related to the ntfs partition: gparted signaled with a red exclamation point that there was a problem with that partition. I read that a checkdisk might solve it but in the end used EaseUS in Windows to shrink (resize) the ntfs partition and create a new one (ext3) from the space left. All seemed ok with that procedure: but resizing the partition and moving the data might have affected the grub file: or whatever the following message means, which I get when trying to start my pc: error: file not found grub rescue> Booting from a live cd I see, beside the shrinked windows partition and my old linux one, the newly created partition, containing a directory called lost+found that I cannot open. Can I fix the grub file and recover both my XP and Lubuntu installations?

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  • Unable to start after 13.04 > 13.10 udate

    - by romainl
    At the end of the update process, clicking on the Restart button had no visible effect whatsoever. After waiting 5 to 10 minutes, I decided to reboot the computer manually. Since then, I rebooted a good dozen times (not with the hope that it would work but with the hope of reading the messages) with the same non-result and the same symptoms: I get the ASCII text-on-purple Ubuntu 13.10 . . . . splash screen with these messages: * Restoring resolver state... [OK] * Starting crash report submission daemon [OK] * Starting CUPS printing spooler/server [OK] Everything disappears. The whole process hangs at a purple screen with the mouse cursor right in the middle. At this point, I'm unable to use the mouse and the keyboard. Booting from a 12.04 CD works perfectly, Disk Utility says that all my disks are OK and I can mount my main partition without problems. Something obviously went wrong at the end of the upgrade but I have no idea what. I'd appreciate any pointer. This is the kind of moment where you really think "Next time, I'll separate my /home partition for sure". My machine is an aging but working Dell Inspiron 530 with an Intel Core Duo E2160 processor, 2 GHz of RAM and an ATI Radeon HD3650 video card. Thanks.

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  • moving in the wrong direction

    - by Will
    Solution: To move a unit forward: forward = Quaternion(0,0,0,1) rotation.normalize() # ocassionally ... pos += ((rotation * forward) * rotation.conjugated()).xyz().normalized() * speed I think the trouble stemmed from how the Euclid math library was doing Quaternion*Vector3 multiplication, although I can't see it. I have a vec3 position, a quaternion for rotation and a speed. I compute the player position like this: rot *= Quaternion().rotate_euler(0.,roll_speed,pitch_speed) rot.normalize() pos += rot.conjugated() * Vector3(0.,0.,-speed) However, printing the pos to console, I can see that I only ever seem to travel on the x-axis. When I draw the scene using the rot quaternion to rotate my camera, it shows a proper orientation. What am I doing wrong? Here's an example: You start off with rotation being an identity quaternion: w=1,x=0,y=0,z=0 You move forward; the code correctly decrements the Z You then pitch right over to face the other way; if you spin only 175deg it'll go in right direction; you have to spin past 180deg. It doesn't matter which direction you spin in, up or down, though Your quaternion can then be something like: w=0.1,x=0.1,y=0,z=0 And moving forward, you actually move backward?! (I am using the euclid Python module, but its the same as every other conjulate) The code can be tried online at http://williame.github.com/ludum_dare_24_evolution/ The only key that adjusts the speed is W and S. The arrow keys only adjust the pitch/roll. At first you can fly ok, but after a bit of weaving around you end up getting sucked towards one of the sides. The code is https://github.com/williame/ludum_dare_24_evolution/blob/cbacf61a7159d2c83a2187af5f2015b2dde28687/tiny1web.py#L102

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  • What design pattern (in python) to use for properly seperate runtime infos with core code?

    - by user1824372
    I am not sure if this is a clear question. I work on a python project that is based on terminal(console), for which I am planning to implement a GUI. I am not major in CS so I really have no idea about how to effectively design a message system such that: in console, it provide nice look info when runtime. in GUI, it is directed to a certain widget, let's say, a text label, or a bottom bar, or a hide-able frame. Do you have any suggestions? Currently, I am using print function to provide essential informations on stdout during runtime. So a lot of print .... are distributed here and there among the code. I am thinking to use macro-like variables such as 'FILE_NOT_EXTIS_MESSAGE' for printing, and define the variables in one file. Is this a standard way that people always do? How about I introduce a logging system? In sum, I am ask for a pattern that people are commonly using for handling of screen output information with high effectiveness and adaptivity.

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  • ?11.2RAC??????????????

    - by JaneZhang(???)
           ?????,???????????????,???dbca???????,???????????dbca,?????????11.2???????,???????,??dbca??????????????????,????????????????     ????11.2???????RACDB2???,?????RACDB1? ?????rac1,????rac2?     ?11.2?,?????grid?????GI,??oracle????????,????????oracle?????? 1. ??????????????????,?????,???????????:audit_file_dest, background_dump_dest, user_dump_dest ?core_dump_dest????audit_file_dest=/u01/app/oracle/admin/RACDB/adump,?????????,?????????:ORA-09925: Unable to create audit trail fileLinux-x86_64 Error: 2: No such file or directoryAdditional information: 99252. ????????????????????????????:SQL> alter system set instance_number=2 scope=spfile sid='RACDB2';SQL> alter system set thread=2 scope=spfile sid='RACDB2';SQL> alter system set undo_tablespace='UNDOTBS2' scope=spfile sid='RACDB2';SQL> alter system set local_listener='(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=192.0.2.122)(PORT=1521))))' sid='RACDB2'; <=====192.0.2.122???2?VIP 3. ???????DB?$ORACLE_HOME/dbs/init<sid>.ora ?????DB?$ORACLE_HOME/dbs/init<sid>.ora,??????????????init<sid>.ora ????,????spfile???:=======================SPFILE='+DATA/racdb/spfileracdb.ora'??:[oracle@rac1 ~]$ scp $ORACLE_HOME/dbs/initRACDB1.ora rac2:$ORACLE_HOME/dbs/initRACDB2.ora <===????????24.  ??????/etc/oratab,????????????:RACDB2:/u01/app/oracle/product/11.2.0/dbhome_1:N       5.  ???????????: DB?$ORACLE_HOME/dbs/ora<sid>.pwd ????DB?$ORACLE_HOME/dbs/ora<sid>.pwd,??????????????:[oracle@rac1 dbs]$ scp $ORACLE_HOME/dbs/orapwRACDB1 rac2:$ORACLE_HOME/dbs/orapwRACDB2 <==?????26.  ?????????????,????????UNDO TABLESPACE?(??????dbca?????,???????undo tablespace????,?????????)??:SQL>CREATE UNDO TABLESPACE "UNDOTBS2" DATAFILE '/dev/….' SIZE 4096M ;???????:SQL>CREATE UNDO TABLESPACE "UNDOTBS2" DATAFILE '+DATA' SIZE 4096M ;7.  ?????????????,????????redo thread?redo log:??:SQL> alter database add logfile thread 2      group 3 ('/dev/...', '/dev/...') size 1024M,     group 4 ('/dev/...','dev/...') size 1024M;???????:SQL> alter database add logfile thread 2     group 3 ('+DATA','+RECO') size 1024M,     group 4 ('+DATA','+RECO') size 1024M;SQL> alter database enable thread 2; <==????thread8.  ??????????,?????????????:[oracle@rac2 admin]$su - oracle[oracle@rac2 admin]$export ORACLE_HOME=/u01/app/oracle/product/11.2.0/dbhome_1[oracle@rac2 admin]$export ORACLE_SID=RACDB2[oracle@rac2 admin]$ sqlplus / as sysdbaSQL> startup <==??????,???????2????????????9. ?????OCR???GI??,?????????????:$srvctl add instance -d <database name> -i <new instance name> -n <new node name>Example of srvctl add instance command:============================[oracle@rac2 ~]$ srvctl add instance -d racdb -i RACDB2 -n rac2  <==????????,????ps -ef|grep smon???[oracle@rac2 dbs]$ ps -ef|grep smonroot      3453     1  1 Jun12 ?        04:03:05 /u01/app/11.2.0/grid/bin/osysmond.bingrid      3727     1  0 Jun12 ?        00:00:19 asm_smon_+ASM2oracle    5343  4543  0 14:06 pts/1    00:00:00 grep smonoracle   28736     1  0 Jun25 ?        00:00:03 ora_smon_RACDB2 <========??????10. ???????:$su - grid[grid@rac2 ~]$ crsctl stat res -t...ora.racdb.db      1        ONLINE  ONLINE       rac1                     Open                      2        OFFLINE OFFLINE             rac2????,??????offline,????????????sqlplus??????sqlplus??????,???srvctl??:[grid@rac2 ~]$ su  - oraclePassword: [oracle@rac2 ~]$ sqlplus / as sysdbaSQL> shutdown immediate;Database closed.Database dismounted.ORACLE instance shut down.SQL> exit[oracle@rac2 ~]$ srvctl start instance -d racdb -i RACDB2[oracle@rac2 ~]$ su - gridPassword: [grid@rac2 ~]$ crsctl stat res -tora.racdb.db      1        ONLINE  ONLINE       rac1                     Open                      2        ONLINE  ONLINE       rac2                     Open                11. ?????????:[oracle@rac2 ~]$ crsctl stat res ora.racdb.db -pNAME=ora.racdb.dbTYPE=ora.database.typeACL=owner:oracle:rwx,pgrp:oinstall:rwx,other::r--ACTION_FAILURE_TEMPLATE=ACTION_SCRIPT=ACTIVE_PLACEMENT=1AGENT_FILENAME=%CRS_HOME%/bin/oraagent%CRS_EXE_SUFFIX%AUTO_START=restoreCARDINALITY=2CHECK_INTERVAL=1CHECK_TIMEOUT=30CLUSTER_DATABASE=trueDATABASE_TYPE=RACDB_UNIQUE_NAME=RACDBDEFAULT_TEMPLATE=PROPERTY(RESOURCE_CLASS=database) PROPERTY(DB_UNIQUE_NAME= CONCAT(PARSE(%NAME%, ., 2), %USR_ORA_DOMAIN%, .)) ELEMENT(INSTANCE_NAME= %GEN_USR_ORA_INST_NAME%) ELEMENT(DATABASE_TYPE= %DATABASE_TYPE%)DEGREE=1DESCRIPTION=Oracle Database resourceENABLED=1FAILOVER_DELAY=0FAILURE_INTERVAL=60FAILURE_THRESHOLD=1GEN_AUDIT_FILE_DEST=/u01/app/oracle/admin/RACDB/adumpGEN_START_OPTIONS=GEN_START_OPTIONS@SERVERNAME(rac1)=openGEN_START_OPTIONS@SERVERNAME(rac2)=openGEN_USR_ORA_INST_NAME=GEN_USR_ORA_INST_NAME@SERVERNAME(rac1)=RACDB1HOSTING_MEMBERS=INSTANCE_FAILOVER=0LOAD=1LOGGING_LEVEL=1MANAGEMENT_POLICY=AUTOMATICNLS_LANG=NOT_RESTARTING_TEMPLATE=OFFLINE_CHECK_INTERVAL=0ONLINE_RELOCATION_TIMEOUT=0ORACLE_HOME=/u01/app/oracle/product/11.2.0/dbhome_1ORACLE_HOME_OLD=PLACEMENT=restrictedPROFILE_CHANGE_TEMPLATE=RESTART_ATTEMPTS=2ROLE=PRIMARYSCRIPT_TIMEOUT=60SERVER_POOLS=ora.RACDBSPFILE=+DATA/RACDB/spfileRACDB.oraSTART_DEPENDENCIES=hard(ora.DATA.dg,ora.RECO.dg) weak(type:ora.listener.type,global:type:ora.scan_listener.type,uniform:ora.ons,global:ora.gns) pullup(ora.DATA.dg,ora.RECO.dg)START_TIMEOUT=600STATE_CHANGE_TEMPLATE=STOP_DEPENDENCIES=hard(intermediate:ora.asm,shutdown:ora.DATA.dg,shutdown:ora.RECO.dg)STOP_TIMEOUT=600TYPE_VERSION=3.2UPTIME_THRESHOLD=1hUSR_ORA_DB_NAME=RACDBUSR_ORA_DOMAIN=USR_ORA_ENV=USR_ORA_FLAGS=USR_ORA_INST_NAME=USR_ORA_INST_NAME@SERVERNAME(rac1)=RACDB1USR_ORA_INST_NAME@SERVERNAME(rac2)=RACDB2USR_ORA_OPEN_MODE=openUSR_ORA_OPI=falseUSR_ORA_STOP_MODE=immediateVERSION=11.2.0.3.0???11.2,?OCR???database??,??????,???????????database???????database???????,??????,???????????????ASM????????????  ?:dbca ???????????:????????oracle????dbca:su - oracledbca?? RAC database?? Instance Management?? add an instance???active rac database??????? ??undo?redo??

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  • MySQL is running VERY slow

    - by user1032531
    I have two servers: a VPS and a laptop. I recently re-built both of them, and MySQL is running about 20 times slower on the laptop. Both servers used to run CentOS 5.8 and I think MySQL 5.1, and the laptop used to do great so I do not think it is the hardware. For the VPS, my provider installed CentOS 6.4, and then I installed MySQL 5.1.69 using yum with the CentOS repo. For the laptop, I installed CentOS 6.4 basic server and then installed MySQL 5.1.69 using yum with the CentOS repo. my.cnf for both servers are identical, and I have shown below. For both servers, I've also included below the output from SHOW VARIABLES; as well as output from sysbench, file system information, and cpu information. I have tried adding skip-name-resolve, but it didn't help. The matrix below shows the SHOW VARIABLES output from both servers which is different. Again, MySQL was installed the same way, so I do not know why it is different, but it is and I think this might be why the laptop is executing MySQL so slowly. Why is the laptop running MySQL slowly, and how do I fix it? Differences between SHOW VARIABLES on both servers +---------------------------+-----------------------+-------------------------+ | Variable | Value-VPS | Value-Laptop | +---------------------------+-----------------------+-------------------------+ | hostname | vps.site1.com | laptop.site2.com | | max_binlog_cache_size | 4294963200 | 18446744073709500000 | | max_seeks_for_key | 4294967295 | 18446744073709500000 | | max_write_lock_count | 4294967295 | 18446744073709500000 | | myisam_max_sort_file_size | 2146435072 | 9223372036853720000 | | myisam_mmap_size | 4294967295 | 18446744073709500000 | | plugin_dir | /usr/lib/mysql/plugin | /usr/lib64/mysql/plugin | | pseudo_thread_id | 7568 | 2 | | system_time_zone | EST | PDT | | thread_stack | 196608 | 262144 | | timestamp | 1372252112 | 1372252046 | | version_compile_machine | i386 | x86_64 | +---------------------------+-----------------------+-------------------------+ my.cnf for both servers [root@server1 ~]# cat /etc/my.cnf [mysqld] datadir=/var/lib/mysql socket=/var/lib/mysql/mysql.sock user=mysql # Disabling symbolic-links is recommended to prevent assorted security risks symbolic-links=0 [mysqld_safe] log-error=/var/log/mysqld.log pid-file=/var/run/mysqld/mysqld.pid innodb_strict_mode=on sql_mode=TRADITIONAL # sql_mode=STRICT_TRANS_TABLES,NO_ZERO_DATE,NO_ZERO_IN_DATE character-set-server=utf8 collation-server=utf8_general_ci log=/var/log/mysqld_all.log [root@server1 ~]# VPS SHOW VARIABLES Info Same as Laptop shown below but changes per above matrix (removed to allow me to be under the 30000 characters as required by ServerFault) Laptop SHOW VARIABLES Info auto_increment_increment 1 auto_increment_offset 1 autocommit ON automatic_sp_privileges ON back_log 50 basedir /usr/ big_tables OFF binlog_cache_size 32768 binlog_direct_non_transactional_updates OFF binlog_format STATEMENT bulk_insert_buffer_size 8388608 character_set_client utf8 character_set_connection utf8 character_set_database latin1 character_set_filesystem binary character_set_results utf8 character_set_server latin1 character_set_system utf8 character_sets_dir /usr/share/mysql/charsets/ collation_connection utf8_general_ci collation_database latin1_swedish_ci collation_server latin1_swedish_ci completion_type 0 concurrent_insert 1 connect_timeout 10 datadir /var/lib/mysql/ date_format %Y-%m-%d datetime_format %Y-%m-%d %H:%i:%s default_week_format 0 delay_key_write ON delayed_insert_limit 100 delayed_insert_timeout 300 delayed_queue_size 1000 div_precision_increment 4 engine_condition_pushdown ON error_count 0 event_scheduler OFF expire_logs_days 0 flush OFF flush_time 0 foreign_key_checks ON ft_boolean_syntax + -><()~*:""&| ft_max_word_len 84 ft_min_word_len 4 ft_query_expansion_limit 20 ft_stopword_file (built-in) general_log OFF general_log_file /var/run/mysqld/mysqld.log group_concat_max_len 1024 have_community_features YES have_compress YES have_crypt YES have_csv YES have_dynamic_loading YES have_geometry YES have_innodb YES have_ndbcluster NO have_openssl DISABLED have_partitioning YES have_query_cache YES have_rtree_keys YES have_ssl DISABLED have_symlink DISABLED hostname server1.site2.com identity 0 ignore_builtin_innodb OFF init_connect init_file init_slave innodb_adaptive_hash_index ON innodb_additional_mem_pool_size 1048576 innodb_autoextend_increment 8 innodb_autoinc_lock_mode 1 innodb_buffer_pool_size 8388608 innodb_checksums ON innodb_commit_concurrency 0 innodb_concurrency_tickets 500 innodb_data_file_path ibdata1:10M:autoextend innodb_data_home_dir innodb_doublewrite ON innodb_fast_shutdown 1 innodb_file_io_threads 4 innodb_file_per_table OFF innodb_flush_log_at_trx_commit 1 innodb_flush_method innodb_force_recovery 0 innodb_lock_wait_timeout 50 innodb_locks_unsafe_for_binlog OFF innodb_log_buffer_size 1048576 innodb_log_file_size 5242880 innodb_log_files_in_group 2 innodb_log_group_home_dir ./ innodb_max_dirty_pages_pct 90 innodb_max_purge_lag 0 innodb_mirrored_log_groups 1 innodb_open_files 300 innodb_rollback_on_timeout OFF innodb_stats_method nulls_equal innodb_stats_on_metadata ON innodb_support_xa ON innodb_sync_spin_loops 20 innodb_table_locks ON innodb_thread_concurrency 8 innodb_thread_sleep_delay 10000 innodb_use_legacy_cardinality_algorithm ON insert_id 0 interactive_timeout 28800 join_buffer_size 131072 keep_files_on_create OFF key_buffer_size 8384512 key_cache_age_threshold 300 key_cache_block_size 1024 key_cache_division_limit 100 language /usr/share/mysql/english/ large_files_support ON large_page_size 0 large_pages OFF last_insert_id 0 lc_time_names en_US license GPL local_infile ON locked_in_memory OFF log OFF log_bin OFF log_bin_trust_function_creators OFF log_bin_trust_routine_creators OFF log_error /var/log/mysqld.log log_output FILE log_queries_not_using_indexes OFF log_slave_updates OFF log_slow_queries OFF log_warnings 1 long_query_time 10.000000 low_priority_updates OFF lower_case_file_system OFF lower_case_table_names 0 max_allowed_packet 1048576 max_binlog_cache_size 18446744073709547520 max_binlog_size 1073741824 max_connect_errors 10 max_connections 151 max_delayed_threads 20 max_error_count 64 max_heap_table_size 16777216 max_insert_delayed_threads 20 max_join_size 18446744073709551615 max_length_for_sort_data 1024 max_long_data_size 1048576 max_prepared_stmt_count 16382 max_relay_log_size 0 max_seeks_for_key 18446744073709551615 max_sort_length 1024 max_sp_recursion_depth 0 max_tmp_tables 32 max_user_connections 0 max_write_lock_count 18446744073709551615 min_examined_row_limit 0 multi_range_count 256 myisam_data_pointer_size 6 myisam_max_sort_file_size 9223372036853727232 myisam_mmap_size 18446744073709551615 myisam_recover_options OFF myisam_repair_threads 1 myisam_sort_buffer_size 8388608 myisam_stats_method nulls_unequal myisam_use_mmap OFF net_buffer_length 16384 net_read_timeout 30 net_retry_count 10 net_write_timeout 60 new OFF old OFF old_alter_table OFF old_passwords OFF open_files_limit 1024 optimizer_prune_level 1 optimizer_search_depth 62 optimizer_switch index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on pid_file /var/run/mysqld/mysqld.pid plugin_dir /usr/lib64/mysql/plugin port 3306 preload_buffer_size 32768 profiling OFF profiling_history_size 15 protocol_version 10 pseudo_thread_id 3 query_alloc_block_size 8192 query_cache_limit 1048576 query_cache_min_res_unit 4096 query_cache_size 0 query_cache_type ON query_cache_wlock_invalidate OFF query_prealloc_size 8192 rand_seed1 rand_seed2 range_alloc_block_size 4096 read_buffer_size 131072 read_only OFF read_rnd_buffer_size 262144 relay_log relay_log_index relay_log_info_file relay-log.info relay_log_purge ON relay_log_space_limit 0 report_host report_password report_port 3306 report_user rpl_recovery_rank 0 secure_auth OFF secure_file_priv server_id 0 skip_external_locking ON skip_name_resolve OFF skip_networking OFF skip_show_database OFF slave_compressed_protocol OFF slave_exec_mode STRICT slave_load_tmpdir /tmp slave_max_allowed_packet 1073741824 slave_net_timeout 3600 slave_skip_errors OFF slave_transaction_retries 10 slow_launch_time 2 slow_query_log OFF slow_query_log_file /var/run/mysqld/mysqld-slow.log socket /var/lib/mysql/mysql.sock sort_buffer_size 2097144 sql_auto_is_null ON sql_big_selects ON sql_big_tables OFF sql_buffer_result OFF sql_log_bin ON sql_log_off OFF sql_log_update ON sql_low_priority_updates OFF sql_max_join_size 18446744073709551615 sql_mode sql_notes ON sql_quote_show_create ON sql_safe_updates OFF sql_select_limit 18446744073709551615 sql_slave_skip_counter sql_warnings OFF ssl_ca ssl_capath ssl_cert ssl_cipher ssl_key storage_engine MyISAM sync_binlog 0 sync_frm ON system_time_zone PDT table_definition_cache 256 table_lock_wait_timeout 50 table_open_cache 64 table_type MyISAM thread_cache_size 0 thread_handling one-thread-per-connection thread_stack 262144 time_format %H:%i:%s time_zone SYSTEM timed_mutexes OFF timestamp 1372254399 tmp_table_size 16777216 tmpdir /tmp transaction_alloc_block_size 8192 transaction_prealloc_size 4096 tx_isolation REPEATABLE-READ unique_checks ON updatable_views_with_limit YES version 5.1.69 version_comment Source distribution version_compile_machine x86_64 version_compile_os redhat-linux-gnu wait_timeout 28800 warning_count 0 VPS Sysbench Info [root@vps ~]# cat sysbench.txt sysbench 0.4.12: multi-threaded system evaluation benchmark Running the test with following options: Number of threads: 8 Doing OLTP test. Running mixed OLTP test Doing read-only test Using Special distribution (12 iterations, 1 pct of values are returned in 75 pct cases) Using "BEGIN" for starting transactions Using auto_inc on the id column Threads started! Time limit exceeded, exiting... (last message repeated 7 times) Done. OLTP test statistics: queries performed: read: 1449966 write: 0 other: 207138 total: 1657104 transactions: 103569 (1726.01 per sec.) deadlocks: 0 (0.00 per sec.) read/write requests: 1449966 (24164.08 per sec.) other operations: 207138 (3452.01 per sec.) Test execution summary: total time: 60.0050s total number of events: 103569 total time taken by event execution: 479.1544 per-request statistics: min: 1.98ms avg: 4.63ms max: 330.73ms approx. 95 percentile: 8.26ms Threads fairness: events (avg/stddev): 12946.1250/381.09 execution time (avg/stddev): 59.8943/0.00 [root@vps ~]# Laptop Sysbench Info [root@server1 ~]# cat sysbench.txt sysbench 0.4.12: multi-threaded system evaluation benchmark Running the test with following options: Number of threads: 8 Doing OLTP test. Running mixed OLTP test Doing read-only test Using Special distribution (12 iterations, 1 pct of values are returned in 75 pct cases) Using "BEGIN" for starting transactions Using auto_inc on the id column Threads started! Time limit exceeded, exiting... (last message repeated 7 times) Done. OLTP test statistics: queries performed: read: 634718 write: 0 other: 90674 total: 725392 transactions: 45337 (755.56 per sec.) deadlocks: 0 (0.00 per sec.) read/write requests: 634718 (10577.78 per sec.) other operations: 90674 (1511.11 per sec.) Test execution summary: total time: 60.0048s total number of events: 45337 total time taken by event execution: 479.4912 per-request statistics: min: 2.04ms avg: 10.58ms max: 85.56ms approx. 95 percentile: 19.70ms Threads fairness: events (avg/stddev): 5667.1250/42.18 execution time (avg/stddev): 59.9364/0.00 [root@server1 ~]# VPS File Info [root@vps ~]# df -T Filesystem Type 1K-blocks Used Available Use% Mounted on /dev/simfs simfs 20971520 16187440 4784080 78% / none tmpfs 6224432 4 6224428 1% /dev none tmpfs 6224432 0 6224432 0% /dev/shm [root@vps ~]# Laptop File Info [root@server1 ~]# df -T Filesystem Type 1K-blocks Used Available Use% Mounted on /dev/mapper/vg_server1-lv_root ext4 72383800 4243964 64462860 7% / tmpfs tmpfs 956352 0 956352 0% /dev/shm /dev/sdb1 ext4 495844 60948 409296 13% /boot [root@server1 ~]# VPS CPU Info Removed to stay under the 30000 character limit required by ServerFault Laptop CPU Info [root@server1 ~]# cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 15 model name : Intel(R) Core(TM)2 Duo CPU T7100 @ 1.80GHz stepping : 13 cpu MHz : 800.000 cache size : 2048 KB physical id : 0 siblings : 2 core id : 0 cpu cores : 2 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 10 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant_tsc arch_perfmon pebs bts rep_good aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm lahf_lm ida dts tpr_shadow vnmi flexpriority bogomips : 3591.39 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: processor : 1 vendor_id : GenuineIntel cpu family : 6 model : 15 model name : Intel(R) Core(TM)2 Duo CPU T7100 @ 1.80GHz stepping : 13 cpu MHz : 800.000 cache size : 2048 KB physical id : 0 siblings : 2 core id : 1 cpu cores : 2 apicid : 1 initial apicid : 1 fpu : yes fpu_exception : yes cpuid level : 10 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant_tsc arch_perfmon pebs bts rep_good aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm lahf_lm ida dts tpr_shadow vnmi flexpriority bogomips : 3591.39 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: [root@server1 ~]# EDIT New Info requested by shakalandy [root@localhost ~]# cat /proc/meminfo MemTotal: 2044804 kB MemFree: 761464 kB Buffers: 68868 kB Cached: 369708 kB SwapCached: 0 kB Active: 881080 kB Inactive: 246016 kB Active(anon): 688312 kB Inactive(anon): 4416 kB Active(file): 192768 kB Inactive(file): 241600 kB Unevictable: 0 kB Mlocked: 0 kB SwapTotal: 4095992 kB SwapFree: 4095992 kB Dirty: 0 kB Writeback: 0 kB AnonPages: 688428 kB Mapped: 65156 kB Shmem: 4216 kB Slab: 92428 kB SReclaimable: 31260 kB SUnreclaim: 61168 kB KernelStack: 2392 kB PageTables: 28356 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 5118392 kB Committed_AS: 1530212 kB VmallocTotal: 34359738367 kB VmallocUsed: 343604 kB VmallocChunk: 34359372920 kB HardwareCorrupted: 0 kB AnonHugePages: 520192 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB DirectMap4k: 8556 kB DirectMap2M: 2078720 kB [root@localhost ~]# ps aux | grep mysql root 2227 0.0 0.0 108332 1504 ? S 07:36 0:00 /bin/sh /usr/bin/mysqld_safe --datadir=/var/lib/mysql --pid-file=/var/lib/mysql/localhost.badobe.com.pid mysql 2319 0.1 24.5 1470068 501360 ? Sl 07:36 0:57 /usr/sbin/mysqld --basedir=/usr --datadir=/var/lib/mysql --plugin-dir=/usr/lib64/mysql/plugin --user=mysql --log-error=/var/lib/mysql/localhost.badobe.com.err --pid-file=/var/lib/mysql/localhost.badobe.com.pid root 3579 0.0 0.1 201840 3028 pts/0 S+ 07:40 0:00 mysql -u root -p root 13887 0.0 0.1 201840 3036 pts/3 S+ 18:08 0:00 mysql -uroot -px xxxxxxxxxx root 14449 0.0 0.0 103248 840 pts/2 S+ 18:16 0:00 grep mysql [root@localhost ~]# ps aux | grep mysql root 2227 0.0 0.0 108332 1504 ? S 07:36 0:00 /bin/sh /usr/bin/mysqld_safe --datadir=/var/lib/mysql --pid-file=/var/lib/mysql/localhost.badobe.com.pid mysql 2319 0.1 24.5 1470068 501356 ? Sl 07:36 0:57 /usr/sbin/mysqld --basedir=/usr --datadir=/var/lib/mysql --plugin-dir=/usr/lib64/mysql/plugin --user=mysql --log-error=/var/lib/mysql/localhost.badobe.com.err --pid-file=/var/lib/mysql/localhost.badobe.com.pid root 3579 0.0 0.1 201840 3028 pts/0 S+ 07:40 0:00 mysql -u root -p root 13887 0.0 0.1 201840 3048 pts/3 S+ 18:08 0:00 mysql -uroot -px xxxxxxxxxx root 14470 0.0 0.0 103248 840 pts/2 S+ 18:16 0:00 grep mysql [root@localhost ~]# vmstat 1 procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu----- r b swpd free buff cache si so bi bo in cs us sy id wa st 0 0 0 742172 76376 371064 0 0 6 6 78 202 2 1 97 1 0 0 0 0 742164 76380 371060 0 0 0 16 191 467 2 1 93 5 0 0 0 0 742164 76380 371064 0 0 0 0 148 388 2 1 98 0 0 0 0 0 742164 76380 371064 0 0 0 0 159 418 2 1 98 0 0 0 0 0 742164 76380 371064 0 0 0 0 145 380 2 1 98 0 0 0 0 0 742164 76380 371064 0 0 0 0 166 429 2 1 97 0 0 1 0 0 742164 76380 371064 0 0 0 0 148 373 2 1 98 0 0 0 0 0 742164 76380 371064 0 0 0 0 149 382 2 1 98 0 0 0 0 0 742164 76380 371064 0 0 0 0 168 408 2 0 97 0 0 0 0 0 742164 76380 371064 0 0 0 0 165 394 2 1 98 0 0 0 0 0 742164 76380 371064 0 0 0 0 159 354 2 1 98 0 0 0 0 0 742164 76388 371060 0 0 0 16 180 447 2 0 91 6 0 0 0 0 742164 76388 371064 0 0 0 0 143 344 2 1 98 0 0 0 1 0 742784 76416 370044 0 0 28 580 360 678 3 1 74 23 0 1 0 0 744768 76496 367772 0 0 40 1036 437 865 3 1 53 43 0 0 1 0 747248 76596 365412 0 0 48 1224 561 923 3 2 53 43 0 0 1 0 749232 76696 363092 0 0 32 1132 512 883 3 2 52 44 0 0 1 0 751340 76772 361020 0 0 32 1008 472 872 2 1 52 45 0 0 1 0 753448 76840 358540 0 0 36 1088 512 860 2 1 51 46 0 0 1 0 755060 76936 357636 0 0 28 1012 481 922 2 2 52 45 0 0 1 0 755060 77064 357988 0 0 12 896 444 902 2 1 53 45 0 0 1 0 754688 77148 358448 0 0 16 1096 506 1007 1 1 56 42 0 0 2 0 754192 77268 358932 0 0 12 1060 481 957 1 2 53 44 0 0 1 0 753696 77380 359392 0 0 12 1052 512 1025 2 1 55 42 0 0 1 0 751028 77480 359828 0 0 8 984 423 909 2 2 52 45 0 0 1 0 750524 77620 360200 0 0 8 788 367 869 1 2 54 44 0 0 1 0 749904 77700 360664 0 0 8 928 439 924 2 2 55 43 0 0 1 0 749408 77796 361084 0 0 12 976 468 967 1 1 56 43 0 0 1 0 748788 77896 361464 0 0 12 992 453 944 1 2 54 43 0 1 1 0 748416 77992 361996 0 0 12 784 392 868 2 1 52 46 0 0 1 0 747920 78092 362336 0 0 4 896 382 874 1 1 52 46 0 0 1 0 745252 78172 362780 0 0 12 1040 444 923 1 1 56 42 0 0 1 0 744764 78288 363220 0 0 8 1024 448 934 2 1 55 43 0 0 1 0 744144 78408 363668 0 0 8 1000 461 982 2 1 53 44 0 0 1 0 743648 78488 364148 0 0 8 872 443 888 2 1 54 43 0 0 1 0 743152 78548 364468 0 0 16 1020 511 995 2 1 55 43 0 0 1 0 742656 78632 365024 0 0 12 928 431 913 1 2 53 44 0 0 1 0 742160 78728 365468 0 0 12 996 470 955 2 2 54 44 0 1 1 0 739492 78840 365896 0 0 8 988 447 939 1 2 52 46 0 0 1 0 738872 78996 366352 0 0 12 972 442 928 1 1 55 44 0 1 1 0 738244 79148 366812 0 0 8 948 549 1126 2 2 54 43 0 0 1 0 737624 79312 367188 0 0 12 996 456 953 2 2 54 43 0 0 1 0 736880 79456 367660 0 0 12 960 444 918 1 1 53 46 0 0 1 0 736260 79584 368124 0 0 8 884 414 921 1 1 54 44 0 0 1 0 735648 79716 368488 0 0 12 976 450 955 2 1 56 41 0 0 1 0 733104 79840 368988 0 0 12 932 453 918 1 2 55 43 0 0 1 0 732608 79996 369356 0 0 16 916 444 889 1 2 54 43 0 1 1 0 731476 80128 369800 0 0 16 852 514 978 2 2 54 43 0 0 1 0 731244 80252 370200 0 0 8 904 398 870 2 1 55 43 0 1 1 0 730624 80384 370612 0 0 12 1032 447 977 1 2 57 41 0 0 1 0 730004 80524 371096 0 0 12 984 469 941 2 2 52 45 0 0 1 0 729508 80636 371544 0 0 12 928 438 922 2 1 52 46 0 0 1 0 728888 80756 371948 0 0 16 972 439 943 2 1 55 43 0 0 1 0 726468 80900 372272 0 0 8 960 545 1024 2 1 54 43 0 1 1 0 726344 81024 372272 0 0 8 464 490 1057 1 2 53 44 0 0 1 0 726096 81148 372276 0 0 4 328 441 1063 2 1 53 45 0 1 1 0 726096 81256 372292 0 0 0 296 387 975 1 1 53 45 0 0 1 0 725848 81380 372284 0 0 4 332 425 1034 2 1 54 44 0 1 1 0 725848 81496 372300 0 0 4 308 386 992 2 1 54 43 0 0 1 0 725600 81616 372296 0 0 4 328 404 1060 1 1 54 44 0 procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu----- r b swpd free buff cache si so bi bo in cs us sy id wa st 0 1 0 725600 81732 372296 0 0 4 328 439 1011 1 1 53 44 0 0 1 0 725476 81848 372308 0 0 0 316 441 1023 2 2 52 46 0 1 1 0 725352 81972 372300 0 0 4 344 451 1021 1 1 55 43 0 2 1 0 725228 82088 372320 0 0 0 328 427 1058 1 1 54 44 0 1 1 0 724980 82220 372300 0 0 4 336 419 999 2 1 54 44 0 1 1 0 724980 82328 372320 0 0 4 320 430 1019 1 1 54 44 0 1 1 0 724732 82436 372328 0 0 0 388 363 942 2 1 54 44 0 1 1 0 724608 82560 372312 0 0 4 308 419 993 1 2 54 44 0 1 0 0 724360 82684 372320 0 0 0 304 421 1028 2 1 55 42 0 1 0 0 724360 82684 372388 0 0 0 0 158 416 2 1 98 0 0 1 1 0 724236 82720 372360 0 0 0 6464 243 855 3 2 84 12 0 1 0 0 724112 82748 372360 0 0 0 5356 266 895 3 1 84 12 0 2 1 0 724112 82764 372380 0 0 0 3052 221 511 2 2 93 4 0 1 0 0 724112 82796 372372 0 0 0 4548 325 1067 2 2 81 16 0 1 0 0 724112 82816 372368 0 0 0 3240 259 829 3 1 90 6 0 1 0 0 724112 82836 372380 0 0 0 3260 309 822 3 2 88 8 0 1 1 0 724112 82876 372364 0 0 0 4680 326 978 3 1 77 19 0 1 0 0 724112 82884 372380 0 0 0 512 207 508 2 1 95 2 0 1 0 0 724112 82884 372388 0 0 0 0 138 361 2 1 98 0 0 1 0 0 724112 82884 372388 0 0 0 0 158 397 2 1 98 0 0 1 0 0 724112 82884 372388 0 0 0 0 146 395 2 1 98 0 0 2 0 0 724112 82884 372388 0 0 0 0 160 395 2 1 98 0 0 1 0 0 724112 82884 372388 0 0 0 0 163 382 1 1 98 0 0 1 0 0 724112 82884 372388 0 0 0 0 176 422 2 1 98 0 0 1 0 0 724112 82884 372388 0 0 0 0 134 351 2 1 98 0 0 0 0 0 724112 82884 372388 0 0 0 0 190 429 2 1 97 0 0 0 0 0 724104 82884 372392 0 0 0 0 139 358 2 1 98 0 0 0 0 0 724848 82884 372392 0 0 0 4 211 432 2 1 97 0 0 1 0 0 724980 82884 372392 0 0 0 0 166 370 2 1 98 0 0 0 0 0 724980 82884 372392 0 0 0 0 164 397 2 1 98 0 0 ^C [root@localhost ~]#

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  • ls -l freezes terminal locally and remotely

    - by Jakobud
    I've been reading other SF threads regarding ls not returning results or freezing and stalling terminal sessions and it appears they usually the fault of network problems. My problem however, occurs both over remote SSH sessions but also if I am physically at the server itself... I just installed CentOS 5.4 on one of our servers. I'm setting up some rdiff-backup scripts and when I downloaded librsync and untared it, thats when I started seeing some weird behavior with ls -l. wget http://sourceforge.net/projects/librsync/files/librsync/0.9.7/librsync-0.9.7.tar.gz/download /tmp cd /tmp tar -xzf librsync-0.9.7.tar.gz Simple enough. To view the files in this directory I did this: ls results: librsync-0.9.7 librsync-0.9.7.tar.gz Now, if I ls -l, my terminal freezes. I have to re-ssh in to keep going. After reading SF threads, I thought it was network related. So I was extremely surprised to go sit down at the server itself and see the exact same thing happen... So its obviously not a network issues. Even if I ls /tmp/librsync-0.9.7, my terminal freezes just the same... Next I did an strace and got this (warning: wall of text coming....): strace ls -l /tmp execve("/bin/ls", ["ls", "-l", "/tmp"], [/* 21 vars */]) = 0 brk(0) = 0x1c521000 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b8582cc0000 uname({sys="Linux", node="massive.answeron.com", ...}) = 0 access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory) open("/etc/ld.so.cache", O_RDONLY) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=71746, ...}) = 0 mmap(NULL, 71746, PROT_READ, MAP_PRIVATE, 3, 0) = 0x2b8582cc1000 close(3) = 0 open("/lib64/librt.so.1", O_RDONLY) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0 \"\200\2730\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=53448, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b8582cd3000 mmap(0x30bb800000, 2132936, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x30bb800000 mprotect(0x30bb807000, 2097152, PROT_NONE) = 0 mmap(0x30bba07000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x7000) = 0x30bba07000 close(3) = 0 open("/lib64/libacl.so.1", O_RDONLY) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0\31@\2740\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=28008, ...}) = 0 mmap(0x30bc400000, 2120992, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x30bc400000 mprotect(0x30bc406000, 2093056, PROT_NONE) = 0 mmap(0x30bc605000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x5000) = 0x30bc605000 close(3) = 0 open("/lib64/libselinux.so.1", O_RDONLY) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0`E\300\2730\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=95464, ...}) = 0 mmap(0x30bbc00000, 2192784, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x30bbc00000 mprotect(0x30bbc15000, 2097152, PROT_NONE) = 0 mmap(0x30bbe15000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x15000) = 0x30bbe15000 mmap(0x30bbe17000, 1424, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x30bbe17000 close(3) = 0 open("/lib64/libc.so.6", O_RDONLY) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\220\332\201\2720\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=1717800, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b8582cd4000 mmap(0x30ba800000, 3498328, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x30ba800000 mprotect(0x30ba94d000, 2097152, PROT_NONE) = 0 mmap(0x30bab4d000, 20480, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x14d000) = 0x30bab4d000 mmap(0x30bab52000, 16728, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x30bab52000 close(3) = 0 open("/lib64/libpthread.so.0", O_RDONLY) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\220W\0\2730\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=145824, ...}) = 0 mmap(0x30bb000000, 2204528, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x30bb000000 mprotect(0x30bb016000, 2093056, PROT_NONE) = 0 mmap(0x30bb215000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x15000) = 0x30bb215000 mmap(0x30bb217000, 13168, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x30bb217000 close(3) = 0 open("/lib64/libattr.so.1", O_RDONLY) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\320\17\300\2750\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=17888, ...}) = 0 mmap(0x30bdc00000, 2110728, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x30bdc00000 mprotect(0x30bdc04000, 2093056, PROT_NONE) = 0 mmap(0x30bde03000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3000) = 0x30bde03000 close(3) = 0 open("/lib64/libdl.so.2", O_RDONLY) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\20\16\300\2720\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=23360, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b8582cd5000 mmap(0x30bac00000, 2109696, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x30bac00000 mprotect(0x30bac02000, 2097152, PROT_NONE) = 0 mmap(0x30bae02000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2000) = 0x30bae02000 close(3) = 0 open("/lib64/libsepol.so.1", O_RDONLY) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0=\0\2740\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=247496, ...}) = 0 mmap(0x30bc000000, 2383136, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x30bc000000 mprotect(0x30bc03b000, 2097152, PROT_NONE) = 0 mmap(0x30bc23b000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3b000) = 0x30bc23b000 mmap(0x30bc23c000, 40224, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x30bc23c000 close(3) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b8582cd6000 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b8582cd7000 arch_prctl(ARCH_SET_FS, 0x2b8582cd6c50) = 0 mprotect(0x30bba07000, 4096, PROT_READ) = 0 mprotect(0x30bab4d000, 16384, PROT_READ) = 0 mprotect(0x30bb215000, 4096, PROT_READ) = 0 mprotect(0x30ba61b000, 4096, PROT_READ) = 0 mprotect(0x30bae02000, 4096, PROT_READ) = 0 munmap(0x2b8582cc1000, 71746) = 0 set_tid_address(0x2b8582cd6ce0) = 24102 set_robust_list(0x2b8582cd6cf0, 0x18) = 0 futex(0x7fff72d02d6c, FUTEX_WAKE_PRIVATE, 1) = 0 rt_sigaction(SIGRTMIN, {0x30bb005370, [], SA_RESTORER|SA_SIGINFO, 0x30bb00e7c0}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {0x30bb0052b0, [], SA_RESTORER|SA_RESTART|SA_SIGINFO, 0x30bb00e7c0}, NULL, 8) = 0 rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 getrlimit(RLIMIT_STACK, {rlim_cur=10240*1024, rlim_max=RLIM_INFINITY}) = 0 access("/etc/selinux/", F_OK) = 0 brk(0) = 0x1c521000 brk(0x1c542000) = 0x1c542000 open("/etc/selinux/config", O_RDONLY) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=448, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b8582cc1000 read(3, "# This file controls the state o"..., 4096) = 448 read(3, "", 4096) = 0 close(3) = 0 munmap(0x2b8582cc1000, 4096) = 0 open("/proc/mounts", O_RDONLY) = 3 fstat(3, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b8582cc1000 read(3, "rootfs / rootfs rw 0 0\n/dev/root"..., 4096) = 577 close(3) = 0 munmap(0x2b8582cc1000, 4096) = 0 open("/selinux/mls", O_RDONLY) = 3 read(3, "1", 19) = 1 close(3) = 0 socket(PF_FILE, SOCK_STREAM, 0) = 3 connect(3, {sa_family=AF_FILE, path="/var/run/setrans/.setrans-unix"...}, 110) = 0 sendmsg(3, {msg_name(0)=NULL, msg_iov(5)=[{"\1\0\0\0", 4}, {"\1\0\0\0", 4}, {"\1\0\0\0", 4}, {"\0", 1}, {"\0", 1}], msg_controllen=0, msg_flags=0}, MSG_NOSIGNAL) = 14 readv(3, [{"\1\0\0\0", 4}, {"\1\0\0\0", 4}, {"\0\0\0\0", 4}], 3) = 12 readv(3, [{"\0", 1}], 1) = 1 close(3) = 0 open("/usr/lib/locale/locale-archive", O_RDONLY) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=56413824, ...}) = 0 mmap(NULL, 56413824, PROT_READ, MAP_PRIVATE, 3, 0) = 0x2b8582cd8000 close(3) = 0 ioctl(1, SNDCTL_TMR_TIMEBASE or TCGETS, {B38400 opost isig icanon echo ...}) = 0 ioctl(1, TIOCGWINSZ, {ws_row=65, ws_col=137, ws_xpixel=0, ws_ypixel=0}) = 0 open("/usr/share/locale/locale.alias", O_RDONLY) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=2528, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b85862a5000 read(3, "# Locale name alias data base.\n#"..., 4096) = 2528 read(3, "", 4096) = 0 close(3) = 0 munmap(0x2b85862a5000, 4096) = 0 open("/usr/share/locale/en_US.UTF-8/LC_TIME/coreutils.mo", O_RDONLY) = -1 ENOENT (No such file or directory) open("/usr/share/locale/en_US.utf8/LC_TIME/coreutils.mo", O_RDONLY) = -1 ENOENT (No such file or directory) open("/usr/share/locale/en_US/LC_TIME/coreutils.mo", O_RDONLY) = -1 ENOENT (No such file or directory) open("/usr/share/locale/en.UTF-8/LC_TIME/coreutils.mo", O_RDONLY) = -1 ENOENT (No such file or directory) open("/usr/share/locale/en.utf8/LC_TIME/coreutils.mo", O_RDONLY) = -1 ENOENT (No such file or directory) open("/usr/share/locale/en/LC_TIME/coreutils.mo", O_RDONLY) = -1 ENOENT (No such file or directory) lstat("/tmp", {st_mode=S_IFDIR|S_ISVTX|0777, st_size=4096, ...}) = 0 getxattr("/tmp", "system.posix_acl_access", 0x0, 0) = -1 ENODATA (No data available) getxattr("/tmp", "system.posix_acl_default", 0x0, 0) = -1 ENODATA (No data available) socket(PF_FILE, SOCK_STREAM, 0) = 3 fcntl(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0 connect(3, {sa_family=AF_FILE, path="/var/run/nscd/socket"...}, 110) = -1 ENOENT (No such file or directory) close(3) = 0 socket(PF_FILE, SOCK_STREAM, 0) = 3 fcntl(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0 connect(3, {sa_family=AF_FILE, path="/var/run/nscd/socket"...}, 110) = -1 ENOENT (No such file or directory) close(3) = 0 open("/etc/nsswitch.conf", O_RDONLY) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=1711, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b85862a5000 read(3, "#\n# /etc/nsswitch.conf\n#\n# An ex"..., 4096) = 1711 read(3, "", 4096) = 0 close(3) = 0 munmap(0x2b85862a5000, 4096) = 0 open("/etc/ld.so.cache", O_RDONLY) = 3 fstat(3, {st_mode=S_IFREG|0644, st_size=71746, ...}) = 0 mmap(NULL, 71746, PROT_READ, MAP_PRIVATE, 3, 0) = 0x2b85862a5000 close(3) = 0 open("/lib64/libnss_files.so.2", O_RDONLY) = 3 read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\340\37\0\0\0\0\0\0"..., 832) = 832 fstat(3, {st_mode=S_IFREG|0755, st_size=53880, ...}) = 0 mmap(NULL, 2139432, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x2b85862b7000 mprotect(0x2b85862c1000, 2093056, PROT_NONE) = 0 mmap(0x2b85864c0000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x9000) = 0x2b85864c0000 close(3) = 0 mprotect(0x2b85864c0000, 4096, PROT_READ) = 0 munmap(0x2b85862a5000, 71746) = 0 open("/etc/passwd", O_RDONLY) = 3 fcntl(3, F_GETFD) = 0 fcntl(3, F_SETFD, FD_CLOEXEC) = 0 fstat(3, {st_mode=S_IFREG|0644, st_size=1823, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b85862a5000 read(3, "root:x:0:0:root:/root:/bin/bash\n"..., 4096) = 1823 close(3) = 0 munmap(0x2b85862a5000, 4096) = 0 socket(PF_FILE, SOCK_STREAM, 0) = 3 fcntl(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0 connect(3, {sa_family=AF_FILE, path="/var/run/nscd/socket"...}, 110) = -1 ENOENT (No such file or directory) close(3) = 0 socket(PF_FILE, SOCK_STREAM, 0) = 3 fcntl(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0 connect(3, {sa_family=AF_FILE, path="/var/run/nscd/socket"...}, 110) = -1 ENOENT (No such file or directory) close(3) = 0 open("/etc/group", O_RDONLY) = 3 fcntl(3, F_GETFD) = 0 fcntl(3, F_SETFD, FD_CLOEXEC) = 0 fstat(3, {st_mode=S_IFREG|0644, st_size=743, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b85862a5000 read(3, "root:x:0:root\nbin:x:1:root,bin,d"..., 4096) = 743 close(3) = 0 munmap(0x2b85862a5000, 4096) = 0 open("/tmp", O_RDONLY|O_NONBLOCK|O_DIRECTORY) = 3 fcntl(3, F_SETFD, FD_CLOEXEC) = 0 getdents(3, /* 8 entries */, 32768) = 264 lstat("/tmp/librsync-0.9.7.tar.gz", {st_mode=S_IFREG|0644, st_size=453802, ...}) = 0 getxattr("/tmp/librsync-0.9.7.tar.gz", "system.posix_acl_access", 0x0, 0) = -1 ENODATA (No data available) getxattr("/tmp/librsync-0.9.7.tar.gz", "system.posix_acl_default", 0x0, 0) = -1 ENODATA (No data available) lstat("/tmp/librsync-0.9.7", {st_mode=S_IFDIR|0777, st_size=4096, ...}) = 0 getxattr("/tmp/librsync-0.9.7", "system.posix_acl_access", 0x0, 0) = -1 ENODATA (No data available) getxattr("/tmp/librsync-0.9.7", "system.posix_acl_default", 0x0, 0) = -1 ENODATA (No data available) open("/etc/passwd", O_RDONLY) = 4 fcntl(4, F_GETFD) = 0 fcntl(4, F_SETFD, FD_CLOEXEC) = 0 fstat(4, {st_mode=S_IFREG|0644, st_size=1823, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b85862a5000 read(4, "root:x:0:0:root:/root:/bin/bash\n"..., 4096) = 1823 read(4, "", 4096) = 0 close(4) = 0 munmap(0x2b85862a5000, 4096) = 0 open("/etc/ld.so.cache", O_RDONLY) = 4 fstat(4, {st_mode=S_IFREG|0644, st_size=71746, ...}) = 0 mmap(NULL, 71746, PROT_READ, MAP_PRIVATE, 4, 0) = 0x2b85862a5000 close(4) = 0 open("/lib64/libnss_ldap.so.2", O_RDONLY) = 4 read(4, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\300r\4\0\0\0\0\0"..., 832) = 832 fstat(4, {st_mode=S_IFREG|0755, st_size=3169960, ...}) = 0 mmap(NULL, 5329912, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 4, 0) = 0x2b85864c2000 mprotect(0x2b858679e000, 2093056, PROT_NONE) = 0 mmap(0x2b858699d000, 176128, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 4, 0x2db000) = 0x2b858699d000 mmap(0x2b85869c8000, 62456, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x2b85869c8000 close(4) = 0 open("/lib64/libcom_err.so.2", O_RDONLY) = 4 read(4, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\320\n\300\2770\0\0\0"..., 832) = 832 fstat(4, {st_mode=S_IFREG|0755, st_size=10000, ...}) = 0 mmap(0x30bfc00000, 2103048, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 4, 0) = 0x30bfc00000 mprotect(0x30bfc02000, 2093056, PROT_NONE) = 0 mmap(0x30bfe01000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 4, 0x1000) = 0x30bfe01000 close(4) = 0 open("/lib64/libkeyutils.so.1", O_RDONLY) = 4 read(4, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0`\n@\2760\0\0\0"..., 832) = 832 fstat(4, {st_mode=S_IFREG|0755, st_size=9472, ...}) = 0 mmap(0x30be400000, 2102416, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 4, 0) = 0x30be400000 mprotect(0x30be402000, 2093056, PROT_NONE) = 0 mmap(0x30be601000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 4, 0x1000) = 0x30be601000 close(4) = 0 open("/lib64/libresolv.so.2", O_RDONLY) = 4 read(4, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\2402\0\2760\0\0\0"..., 832) = 832 fstat(4, {st_mode=S_IFREG|0755, st_size=92736, ...}) = 0 mmap(0x30be000000, 2181864, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 4, 0) = 0x30be000000 mprotect(0x30be011000, 2097152, PROT_NONE) = 0 mmap(0x30be211000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 4, 0x11000) = 0x30be211000 mmap(0x30be213000, 6888, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x30be213000 close(4) = 0 mprotect(0x30be211000, 4096, PROT_READ) = 0 munmap(0x2b85862a5000, 71746) = 0 rt_sigaction(SIGPIPE, {0x1, [], SA_RESTORER, 0x30ba8302d0}, {SIG_DFL, [], 0}, 8) = 0 geteuid() = 0 futex(0x2b85869c7708, FUTEX_WAKE_PRIVATE, 2147483647) = 0 open("/etc/ldap.conf", O_RDONLY) = 4 fstat(4, {st_mode=S_IFREG|0644, st_size=9119, ...}) = 0 fstat(4, {st_mode=S_IFREG|0644, st_size=9119, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b85862a5000 read(4, "# @(#)$Id: ldap.conf,v 1.38 2006"..., 4096) = 4096 read(4, "Use the OpenLDAP password change"..., 4096) = 4096 read(4, " OpenLDAP 2.0 and earlier is \"no"..., 4096) = 927 read(4, "", 4096) = 0 close(4) = 0 munmap(0x2b85862a5000, 4096) = 0 uname({sys="Linux", node="massive.answeron.com", ...}) = 0 open("/etc/resolv.conf", O_RDONLY) = 4 fstat(4, {st_mode=S_IFREG|0644, st_size=107, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b85862a5000 read(4, "; generated by /sbin/dhclient-sc"..., 4096) = 107 read(4, "", 4096) = 0 close(4) = 0 munmap(0x2b85862a5000, 4096) = 0 socket(PF_FILE, SOCK_STREAM, 0) = 4 fcntl(4, F_SETFL, O_RDWR|O_NONBLOCK) = 0 connect(4, {sa_family=AF_FILE, path="/var/run/nscd/socket"...}, 110) = -1 ENOENT (No such file or directory) close(4) = 0 socket(PF_FILE, SOCK_STREAM, 0) = 4 fcntl(4, F_SETFL, O_RDWR|O_NONBLOCK) = 0 connect(4, {sa_family=AF_FILE, path="/var/run/nscd/socket"...}, 110) = -1 ENOENT (No such file or directory) close(4) = 0 open("/etc/host.conf", O_RDONLY) = 4 fstat(4, {st_mode=S_IFREG|0644, st_size=17, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b85862a5000 read(4, "order hosts,bind\n", 4096) = 17 read(4, "", 4096) = 0 close(4) = 0 munmap(0x2b85862a5000, 4096) = 0 futex(0x30bab54d44, FUTEX_WAKE_PRIVATE, 2147483647) = 0 open("/etc/hosts", O_RDONLY) = 4 fcntl(4, F_GETFD) = 0 fcntl(4, F_SETFD, FD_CLOEXEC) = 0 fstat(4, {st_mode=S_IFREG|0644, st_size=187, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b85862a5000 read(4, "# Do not remove the following li"..., 4096) = 187 read(4, "", 4096) = 0 close(4) = 0 munmap(0x2b85862a5000, 4096) = 0 open("/etc/ld.so.cache", O_RDONLY) = 4 fstat(4, {st_mode=S_IFREG|0644, st_size=71746, ...}) = 0 mmap(NULL, 71746, PROT_READ, MAP_PRIVATE, 4, 0) = 0x2b85862a5000 close(4) = 0 open("/lib64/libnss_dns.so.2", O_RDONLY) = 4 read(4, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\340\17\0\0\0\0\0\0"..., 832) = 832 fstat(4, {st_mode=S_IFREG|0755, st_size=23736, ...}) = 0 mmap(NULL, 2113792, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 4, 0) = 0x2b85869d8000 mprotect(0x2b85869dc000, 2093056, PROT_NONE) = 0 mmap(0x2b8586bdb000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 4, 0x3000) = 0x2b8586bdb000 close(4) = 0 mprotect(0x2b8586bdb000, 4096, PROT_READ) = 0 munmap(0x2b85862a5000, 71746) = 0 socket(PF_INET, SOCK_DGRAM, IPPROTO_IP) = 4 connect(4, {sa_family=AF_INET, sin_port=htons(53), sin_addr=inet_addr("192.168.10.20")}, 28) = 0 fcntl(4, F_GETFL) = 0x2 (flags O_RDWR) fcntl(4, F_SETFL, O_RDWR|O_NONBLOCK) = 0 gettimeofday({1276265920, 823870}, NULL) = 0 poll([{fd=4, events=POLLOUT}], 1, 0) = 1 ([{fd=4, revents=POLLOUT}]) sendto(4, "C\v\1\0\0\1\0\0\0\0\0\0\7massive\10answeron\3co"..., 38, MSG_NOSIGNAL, NULL, 0) = 38 poll([{fd=4, events=POLLIN}], 1, 5000) = 1 ([{fd=4, revents=POLLIN}]) ioctl(4, FIONREAD, [122]) = 0 recvfrom(4, "C\v\205\200\0\1\0\1\0\2\0\2\7massive\10answeron\3co"..., 1024, 0, {sa_family=AF_INET, sin_port=htons(53), sin_addr=inet_addr("192.168.10.20")}, [16]) = 122 close(4) = 0 open("/etc/openldap/ldap.conf", O_RDONLY) = 4 fstat(4, {st_mode=S_IFREG|0644, st_size=335, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b85862a5000 read(4, "#\n# LDAP Defaults\n#\n\n# See ldap."..., 4096) = 335 read(4, "", 4096) = 0 close(4) = 0 munmap(0x2b85862a5000, 4096) = 0 getuid() = 0 geteuid() = 0 getgid() = 0 getegid() = 0 open("/root/ldaprc", O_RDONLY) = -1 ENOENT (No such file or directory) open("/root/.ldaprc", O_RDONLY) = -1 ENOENT (No such file or directory) stat("/etc/ldap.conf", {st_mode=S_IFREG|0644, st_size=9119, ...}) = 0 geteuid() = 0 brk(0x1c566000) = 0x1c566000 open("/etc/hosts", O_RDONLY) = 4 fcntl(4, F_GETFD) = 0 fcntl(4, F_SETFD, FD_CLOEXEC) = 0 fstat(4, {st_mode=S_IFREG|0644, st_size=187, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b85862a5000 read(4, "# Do not remove the following li"..., 4096) = 187 read(4, "", 4096) = 0 close(4) = 0 munmap(0x2b85862a5000, 4096) = 0 open("/etc/hosts", O_RDONLY) = 4 fcntl(4, F_GETFD) = 0 fcntl(4, F_SETFD, FD_CLOEXEC) = 0 fstat(4, {st_mode=S_IFREG|0644, st_size=187, ...}) = 0 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x2b85862a5000 read(4, "# Do not remove the following li"..., 4096) = 187 read(4, "", 4096) = 0 close(4) = 0 munmap(0x2b85862a5000, 4096) = 0 socket(PF_INET, SOCK_DGRAM, IPPROTO_IP) = 4 connect(4, {sa_family=AF_INET, sin_port=htons(53), sin_addr=inet_addr("192.168.10.20")}, 28) = 0 fcntl(4, F_GETFL) = 0x2 (flags O_RDWR) fcntl(4, F_SETFL, O_RDWR|O_NONBLOCK) = 0 gettimeofday({1276265920, 855948}, NULL) = 0 poll([{fd=4, events=POLLOUT}], 1, 0) = 1 ([{fd=4, revents=POLLOUT}]) sendto(4, "\32 \1\0\0\1\0\0\0\0\0\0\4ldap\10answeron\3com\0\0"..., 35, MSG_NOSIGNAL, NULL, 0) = 35 poll([{fd=4, events=POLLIN}], 1, 5000) = 1 ([{fd=4, revents=POLLIN}]) ioctl(4, FIONREAD, [104]) = 0 recvfrom(4, "\32 \205\200\0\1\0\1\0\1\0\0\4ldap\10answeron\3com\0\0"..., 1024, 0, {sa_family=AF_INET, sin_port=htons(53), sin_addr=inet_addr("192.168.10.20")}, [16]) = 104 close(4) = 0 socket(PF_INET, SOCK_DGRAM, IPPROTO_IP) = 4 connect(4, {sa_family=AF_INET, sin_port=htons(53), sin_addr=inet_addr("192.168.10.20")}, 28) = 0 fcntl(4, F_GETFL) = 0x2 (flags O_RDWR) fcntl(4, F_SETFL, O_RDWR|O_NONBLOCK) = 0 gettimeofday({1276265920, 858536}, NULL) = 0 poll([{fd=4, events=POLLOUT}], 1, 0) = 1 ([{fd=4, revents=POLLOUT}]) sendto(4, "I\375\1\0\0\1\0\0\0\0\0\0\4ldap\10answeron\3com\0\0"..., 35, MSG_NOSIGNAL, NULL, 0) = 35 poll([{fd=4, events=POLLIN}], 1, 5000) = 1 ([{fd=4, revents=POLLIN}]) ioctl(4, FIONREAD, [139]) = 0 recvfrom(4, "I\375\205\200\0\1\0\2\0\2\0\2\4ldap\10answeron\3com\0\0"..., 1024, 0, {sa_family=AF_INET, sin_port=htons(53), sin_addr=inet_addr("192.168.10.20")}, [16]) = 139 close(4) = 0 socket(PF_INET, SOCK_STREAM, IPPROTO_IP) = 4 fcntl(4, F_SETFD, FD_CLOEXEC) = 0 setsockopt(4, SOL_SOCKET, SO_KEEPALIVE, [1], 4) = 0 setsockopt(4, SOL_TCP, TCP_NODELAY, [1], 4) = 0 fcntl(4, F_GETFL) = 0x2 (flags O_RDWR) fcntl(4, F_SETFL, O_RDWR|O_NONBLOCK) = 0 connect(4, {sa_family=AF_INET, sin_port=htons(389), sin_addr=inet_addr("10.20.0.30")}, 16) = -1 EINPROGRESS (Operation now in progress) poll([{fd=4, events=POLLOUT|POLLERR|POLLHUP}], 1, 120000 And thats where it stops, right there after that last 120000.... Using strace, I can obviously CTRL+C to keep going. But like I said, normally the terminal completely freezes. Anyone have any clues?

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  • Programação paralela no .NET Framework 4 – Parte I

    - by anobre
    Introdução O avanço de tecnologia nos últimos anos forneceu, a baixo custo, acesso  a workstations com inúmeros CPUs. Facilmente encontramos hoje máquinas clientes com 2, 4 e até 8 núcleos, sem considerar os “super-servidores” com até 36 processadores :) Da wikipedia: A Unidade central de processamento (CPU, de acordo com as iniciais em inglês) ou o processador é a parte de um sistema de computador que executa as instruções de um programa de computador, e é o elemento primordial na execução das funções de um computador. Este termo tem sido usado na indústria de computadores pelo menos desde o início dos anos 1960[1]. A forma, desenho e implementação de CPUs têm mudado dramaticamente desde os primeiros exemplos, mas o seu funcionamento fundamental permanece o mesmo. Fazendo uma analogia, seria muito interessante delegarmos tarefas no mundo real que podem ser executadas independentemente a pessoas diferentes, atingindo desta forma uma  maior performance / produtividade na sua execução. A computação paralela se baseia na idéia que um problema maior pode ser dividido em problemas menores, sendo resolvidos de forma paralela. Este pensamento é utilizado há algum tempo por HPC (High-performance computing), e através das facilidades dos últimos anos, assim como a preocupação com consumo de energia, tornaram esta idéia mais atrativa e de fácil acesso a qualquer ambiente. No .NET Framework A plataforma .NET apresenta um runtime, bibliotecas e ferramentas para fornecer uma base de acesso fácil e rápido à programação paralela, sem trabalhar diretamente com threads e thread pool. Esta série de posts irá apresentar todos os recursos disponíveis, iniciando os estudos pela TPL, ou Task Parallel Library. Task Parallel Library A TPL é um conjunto de tipos localizados no namespace System.Threading e System.Threading.Tasks, a partir da versão 4 do framework. A partir da versão 4 do framework, o TPL é a maneira recomendada para escrever código paralelo e multithreaded. http://msdn.microsoft.com/en-us/library/dd460717(v=VS.100).aspx Task Parallelism O termo “task parallelism”, ou em uma tradução live paralelismo de tarefas, se refere a uma ou mais tarefas sendo executadas de forma simultanea. Considere uma tarefa como um método. A maneira mais fácil de executar tarefas de forma paralela é o código abaixo: Parallel.Invoke(() => TrabalhoInicial(), () => TrabalhoSeguinte()); O que acontece de verdade? Por trás nos panos, esta instrução instancia de forma implícita objetos do tipo Task, responsável por representar uma operação assíncrona, não exatamente paralela: public class Task : IAsyncResult, IDisposable É possível instanciar Tasks de forma explícita, sendo uma alternativa mais complexa ao Parallel.Invoke. var task = new Task(() => TrabalhoInicial()); task.Start(); Outra opção de instanciar uma Task e já executar sua tarefa é: var t = Task<int>.Factory.StartNew(() => TrabalhoInicialComValor());var t2 = Task<int>.Factory.StartNew(() => TrabalhoSeguinteComValor()); A diferença básica entre as duas abordagens é que a primeira tem início conhecido, mais utilizado quando não queremos que a instanciação e o agendamento da execução ocorra em uma só operação, como na segunda abordagem. Data Parallelism Ainda parte da TPL, o Data Parallelism se refere a cenários onde a mesma operação deva ser executada paralelamente em elementos de uma coleção ou array, através de instruções paralelas For e ForEach. A idéia básica é pegar cada elemento da coleção (ou array) e trabalhar com diversas threads concomitantemente. A classe-chave para este cenário é a System.Threading.Tasks.Parallel // Sequential version foreach (var item in sourceCollection) { Process(item); } // Parallel equivalent Parallel.ForEach(sourceCollection, item => Process(item)); Complicado né? :) Demonstração Acesse aqui um vídeo com exemplos (screencast). Cuidado! Apesar da imensa vontade de sair codificando, tome cuidado com alguns problemas básicos de paralelismo. Neste link é possível conhecer algumas situações. Abraços.

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  • A basic T4 template for generating Model Metadata in ASP.NET MVC2

    - by rajbk
    I have been learning about T4 templates recently by looking at the awesome ADO.NET POCO entity generator. By using the POCO entity generator template as a base, I created a T4 template which generates metadata classes for a given Entity Data Model. This speeds coding by reducing the amount of typing required when creating view specific model and its metadata. To use this template, Download the template provided at the bottom. Set two values in the template file. The first one should point to the EDM you wish to generate metadata for. The second is used to suffix the namespace and classes that get generated. string inputFile = @"Northwind.edmx"; string suffix = "AutoMetadata"; Add the template to your MVC 2 Visual Studio 2010 project. Once you add it, a number of classes will get added to your project based on the number of entities you have.    One of these classes is shown below. Note that the DisplayName, Required and StringLength attributes have been added by the t4 template. //------------------------------------------------------------------------------ // <auto-generated> // This code was generated from a template. // // Changes to this file may cause incorrect behavior and will be lost if // the code is regenerated. // </auto-generated> //------------------------------------------------------------------------------   using System; using System.ComponentModel; using System.ComponentModel.DataAnnotations;   namespace NorthwindSales.ModelsAutoMetadata { public partial class CustomerAutoMetadata { [DisplayName("Customer ID")] [Required] [StringLength(5)] public string CustomerID { get; set; } [DisplayName("Company Name")] [Required] [StringLength(40)] public string CompanyName { get; set; } [DisplayName("Contact Name")] [StringLength(30)] public string ContactName { get; set; } [DisplayName("Contact Title")] [StringLength(30)] public string ContactTitle { get; set; } [DisplayName("Address")] [StringLength(60)] public string Address { get; set; } [DisplayName("City")] [StringLength(15)] public string City { get; set; } [DisplayName("Region")] [StringLength(15)] public string Region { get; set; } [DisplayName("Postal Code")] [StringLength(10)] public string PostalCode { get; set; } [DisplayName("Country")] [StringLength(15)] public string Country { get; set; } [DisplayName("Phone")] [StringLength(24)] public string Phone { get; set; } [DisplayName("Fax")] [StringLength(24)] public string Fax { get; set; } } } The gen’d class can be used from your project by creating a partial class with the entity name and setting the MetadataType attribute.namespace MyProject.Models{ [MetadataType(typeof(CustomerAutoMetadata))] public partial class Customer { }} You can also copy the code in the metadata class generated and create your own ViewModel class. Note that the template is super basic  and does not take into account complex properties. I have tested it with the Northwind database. This is a work in progress. Feel free to modify the template to suite your requirements. Standard disclaimer follows: Use At Your Own Risk, Works on my machine running VS 2010 RTM/ASP.NET MVC 2 AutoMetaData.zip Mr. Incredible: Of course I have a secret identity. I don't know a single superhero who doesn't. Who wants the pressure of being super all the time?

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  • Raspberry Pi entrance signed backed by Umbraco - Part 1

    - by Chris Houston
    Being experts on all things Umbraco, we jumped at the chance to help our client, QV Offices, with their pressing signage predicament. They needed to display a sign in the entrance to their building and approached us for our advice. Of course it had to be electronic: displaying multiple names of their serviced office clients, meeting room bookings and on-the-pulse promotions. But with a winding Victorian staircase and minimal storage space how could the monitor be run, updated and managed? That’s where we came in…Raspberry PiUmbraco CMSAutomatic updatesAutomated monitor of the signPower saving when the screen is not in useMounting the screenThe screen that has been used is a standard LED low energy Full HD screen and has been mounted on the wall using it's VESA mounting points, as the wall is a stud wall we were able to add an access panel behind the screen to feed through the mains, HDMI and sensor cables.The Raspberry Pi is then tucked away out of sight in the main electrical cupboard which just happens to be next to the sign, we had an electrician add a power point inside this cupboard to allow us to power the screen and the Raspberry Pi.Designing the interface and editing the contentAlthough a room sign was the initial requirement from QV Offices, their medium term goal has always been to add online meeting booking to their website and hence we suggested adding information about the current and next day's meetings to the sign that would be pulled directly from their online booking system.We produced the design and built the web page to fit exactly on a 1920 x 1080 screen (Full HD in Portrait)As you would expect all the information can be edited via an Umbraco CMS, they are able to add floors, rooms, clients and virtual clients as well as add meeting bookings to their meeting diary.How we configured the Raspberry PiAfter receiving a new Raspberry Pi we downloaded the latest release of Raspbian operating system and followed the official guide which shows how to copy the OS onto an SD card from a Mac, we then followed the majority of steps on this useful guide: 10 Things to Do After Buying a Raspberry Pi.Installing ChromiumWe chose to use the Chromium web browser which for those who do not know is the open sourced version of Google Chrome. You can install this from the terminal with the following command:sudo apt-get install chromium-browserInstalling UnclutterWe found this little application which automatically hides the mouse pointer, it is used in the script below and is installed using the following command:sudo apt-get install unclutterAuto start Chromium and disabling the screen saver, power saving and mouseWhen the Raspberry Pi has been installed it will not have a keyboard or mouse and hence if their was a power cut we needed it to always boot and re-loaded Chromium with the correct URL.Our preferred command line text editor is Nano and I have assumed you know how to use this editor or will be able to work it out pretty quickly.So using the following command:sudo nano /etc/xdg/lxsession/LXDE/autostartWe then changed the autostart file content to:@lxpanel --profile LXDE@pcmanfm --desktop --profile LXDE@xscreensaver -no-splash@xset s off@xset -dpms@xset s noblank@chromium --kiosk --incognito http://www.qvoffices.com/someURL@unclutter -idle 0The first few commands turn off the screen saver and power saving, we then open Cromium in Kiosk Mode (full screen with no menu etc) and pass in the URL to use (I have changed the URL in this example) We found a useful blog post with the Cromium command line switches.Finally we also open an application called Unclutter which auto hides the mouse after 0 seconds, so you will never see a mouse on the sign.We also had to edit the following file:sudo nano /etc/lightdm/lightdm.confAnd added the following line under the [SeatDefault] section:xserver-command=X -s 0 dpmsRefreshing the screenWe decided to try and add a scheduled task that would trigger Chromium to reload the page, at some point in the future we might well change this to using Javascript to update the content, but for now this works fine.First we installed the XDOTool which enables you to script Keyboard commands:sudo apt-get install xdotoolWe used the Refreshing Chromium Browser by Shell Script post as a reference and created the following shell script (which we called refreshing.sh):export DISPLAY=":0"WID=$(xdotool search --onlyvisible --class chromium|head -1)xdotool windowactivate ${WID}xdotool key ctrl+F5This selects the correct display and then sends a CTRL + F5 to refresh Chromium.You will need to give this file execute permissions:chmod a=rwx refreshing.shNow we have the script file setup we just need to schedule it to call this script periodically which is done by using Crontab, to edit this you use the following command:crontab -eAnd we added the following:*/5 * * * * DISPLAY=":.0" /home/pi/scripts/refreshing.sh >/home/pi/cronlog.log 2>&1This calls our script every 5 minutes to refresh the display and it logs any errors to the cronlog.log file.SummaryQV Offices now have a richer and more manageable booking system than they did before we started, and a great new sign to boot.How could we make sure that the sign was running smoothly downstairs in a busy office centre? A second post will follow outlining exactly how Vizioz enabled QV Offices to monitor their sign simply and remotely, from the comfort of their desks.

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