object relational mapping - Page 722

ffmpeg video4linux2 at specified resolution

- by wim

When I'm trying to record a clip from my webcam, using: ffmpeg -f video4linux2 -s 640x480 -i /dev/video0 /tmp/spam.avi I get annoying problem with very low resolution video, and there is a message from ffmpeg saying: [video4linux2,v4l2 @ 0x2bff3e0] The V4L2 driver changed the video from 800x600 to 176x144 I have tried not specifying -s, or trying other sizes like 800x600, and always it forces me back to 176x144. Why is this and how can I prevent it? My webcam is one of those Logitech 9000 Pro, I know it supports better resolutions than this and I can see with v4l2-ctl --list-formats-ext that it goes up to at least 800x600. edit: complete console output follows wim@wim-desktop:~$ ffmpeg -f video4linux2 -s 640x480 -i /dev/video0 /tmp/spam.avi ffmpeg version git-2012-11-20-70c0f13 Copyright (c) 2000-2012 the FFmpeg developers built on Nov 21 2012 00:09:36 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5) configuration: --enable-gpl --enable-libfaac --enable-libfdk-aac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-librtmp --enable-libtheora --enable-libvorbis --enable-libvpx --enable-x11grab --enable-libx264 --enable-nonfree --enable-version3 libavutil 52. 8.100 / 52. 8.100 libavcodec 54. 73.100 / 54. 73.100 libavformat 54. 37.100 / 54. 37.100 libavdevice 54. 3.100 / 54. 3.100 libavfilter 3. 23.101 / 3. 23.101 libswscale 2. 1.102 / 2. 1.102 libswresample 0. 17.100 / 0. 17.100 libpostproc 52. 2.100 / 52. 2.100 [video4linux2,v4l2 @ 0x37a33e0] The V4L2 driver changed the video from 640x480 to 176x144 [video4linux2,v4l2 @ 0x37a33e0] Estimating duration from bitrate, this may be inaccurate Input #0, video4linux2,v4l2, from '/dev/video0': Duration: N/A, start: 37066.740548, bitrate: 6082 kb/s Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 176x144, 6082 kb/s, 15 tbr, 1000k tbn, 15 tbc File '/tmp/spam.avi' already exists. Overwrite ? [y/N] y Output #0, avi, to '/tmp/spam.avi': Metadata: ISFT : Lavf54.37.100 Stream #0:0: Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 176x144, q=2-31, 200 kb/s, 15 tbn, 15 tbc Stream mapping: Stream #0:0 -> #0:0 (rawvideo -> mpeg4) Press [q] to stop, [?] for help frame= 95 fps= 22 q=2.0 Lsize= 88kB time=00:00:13.86 bitrate= 51.8kbits/s video:77kB audio:0kB subtitle:0 global headers:0kB muxing overhead 13.553706%

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Help needed with Javascript Variable Scope / OOP and Call Back Functions

- by gargantaun

I think this issue goes beyond typical variable scope and closure stuff, or maybe I'm an idiot. Here goes anyway... I'm creating a bunch of objects on the fly in a jQuery plugin. The object look something like this function WedgePath(canvas){ this.targetCanvas = canvas; this.label; this.logLabel = function(){ console.log(this.label) } } the jQuery plugin looks something like this (function($) { $.fn.myPlugin = function() { return $(this).each(function() { // Create Wedge Objects for(var i = 1; i <= 30; i++){ var newWedge = new WedgePath(canvas); newWedge.label = "my_wedge_"+i; globalFunction(i, newWedge]); } }); } })(jQuery); So... the plugin creates a bunch of wedgeObjects, then calls 'globalFunction' for each one, passing in the latest WedgePath instance. Global function looks like this. function globalFunction(indicator_id, pWedge){ var targetWedge = pWedge; targetWedge.logLabel(); } What happens next is that the console logs each wedges label correctly. However, I need a bit more complexity inside globalFunction. So it actually looks like this... function globalFunction(indicator_id, pWedge){ var targetWedge = pWedge; someSql = "SELECT * FROM myTable WHERE id = ?"; dbInterface.executeSql(someSql, [indicator_id], function(transaction, result){ targetWedge.logLabel(); }) } There's a lot going on here so i'll explain. I'm using client side database storage (WebSQL i call it). 'dbInterface' an instance of a simple javascript object I created which handles the basics of interacting with a client side database [shown at the end of this question]. the executeSql method takes up to 4 arguments The SQL String an optional arguments array an optional onSuccess handler an optional onError handler (not used in this example) What I need to happen is: When the WebSQL query has completed, it takes some of that data and manipulates some attribute of a particular wedge. But, when I call 'logLabel' on an instance of WedgePath inside the onSuccess handler, I get the label of the very last instance of WedgePath that was created way back in the plugin code. Now I suspect that the problem lies in the var newWedge = new WedgePath(canvas); line. So I tried pushing each newWedge into an array, which I thought would prevent that line from replacing or overwriting the WedgePath instance at every iteration... wedgeArray = []; // Inside the plugin... for(var i = 1; i <= 30; i++){ var newWedge = new WedgePath(canvas); newWedge.label = "my_wedge_"+i; wedgeArray.push(newWedge); } for(var i = 0; i < wedgeArray.length; i++){ wedgeArray[i].logLabel() } But again, I get the last instance of WedgePath to be created. This is driving me nuts. I apologise for the length of the question but I wanted to be as clear as possible. END ============================================================== Also, here's the code for dbInterface object should it be relevant. function DatabaseInterface(db){ var DB = db; this.sql = function(sql, arr, pSuccessHandler, pErrorHandler){ successHandler = (pSuccessHandler) ? pSuccessHandler : this.defaultSuccessHandler; errorHandler = (pErrorHandler) ? pErrorHandler : this.defaultErrorHandler; DB.transaction(function(tx){ if(!arr || arr.length == 0){ tx.executeSql(sql, [], successHandler, errorHandler); }else{ tx.executeSql(sql,arr, successHandler, errorHandler) } }); } // ---------------------------------------------------------------- // A Default Error Handler // ---------------------------------------------------------------- this.defaultErrorHandler = function(transaction, error){ // error.message is a human-readable string. // error.code is a numeric error code console.log('WebSQL Error: '+error.message+' (Code '+error.code+')'); // Handle errors here var we_think_this_error_is_fatal = true; if (we_think_this_error_is_fatal) return true; return false; } // ---------------------------------------------------------------- // A Default Success Handler // This doesn't do anything except log a success message // ---------------------------------------------------------------- this.defaultSuccessHandler = function(transaction, results) { console.log("WebSQL Success. Default success handler. No action taken."); } }

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How to find out Vim's currently mapped commandos

- by Boldewyn

I'm using Vim under Debian, Win Vista and WinXP (the latter two with Cygwin). To handle tabs more easily, I mapped <C-Left> and <C-Right> to :tab(prev|next). This mapping works like a charm on the Debian machine. On the Windows machines, however, pressing <C-Left> deletes 5 lines, as far as I can tell, and meddles with cursor position, while <C-Right> does this, too, and additionally enters Insert mode. Question: To put it in a nutshell, how can I find out, why Vim behaves as it does? Is there a way to backtrace the active commands and keystrokes? Could there be a plugin the culprit? (I didn't install one, perhaps a default include by the Cygwin distro...) If so, how can I find it? Additional Diagnosis: This behaviour occurs regardless of any existing ~/.vimrc file (is therefore not related to my above mentioned mapings) and is not inherited of some /etc/vim/vimrc, since this doesn't exist in the default Cygwin installation. :verbose map doesn't yield any new insights. Either nothing or my mentioned mappings appear, based on the existence of the .vimrc file :help <C-Left> suggests, that the default would be a simple cursor movement, which is apparently not the case. Vim's version under Cygwin: VIM - Vi IMproved 7.2 (2008 Aug 9, compiled Feb 11 2010 17:36:58) Included patches: 1-264 Compiled by http://cygwin.com/ Huge version without GUI. Features included (+) or not (-): +arabic +autocmd -balloon_eval -browse ++builtin_terms +byte_offset +cindent -clientserver -clipboard +cmdline_compl +cmdline_hist +cmdline_info +comments +cryptv +cscope +cursorshape +dialog_con +diff +digraphs -dnd -ebcdic +emacs_tags +eval +ex_extra +extra_search +farsi +file_in_path +find_in_path +float +folding -footer +fork() -gettext -hangul_input +iconv +insert_expand +jumplist +keymap +langmap +libcall +linebreak +lispindent +listcmds +localmap +menu +mksession +modify_fname +mouse -mouseshape +mouse_dec -mouse_gpm -mouse_jsbterm +mouse_netterm -mouse_sysmouse +mouse_xterm +multi_byte +multi_lang -mzscheme -netbeans_intg -osfiletype +path_extra -perl +postscript +printer +profile -python +quickfix +reltime +rightleft -ruby +scrollbind +signs +smartindent -sniff +statusline -sun_workshop +syntax +tag_binary +tag_old_static -tag_any_white -tcl +terminfo +termresponse +textobjects +title -toolbar +user_commands +vertsplit +virtualedit +visual +visualextra +viminfo +vreplace +wildignore +wildmenu +windows +writebackup -X11 -xfontset -xim -xsmp -xterm_clipboard -xterm_save system vimrc file: "$VIM/vimrc" user vimrc file: "$HOME/.vimrc" user exrc file: "$HOME/.exrc" fall-back for $VIM: "/usr/share/vim" Compilation: gcc -c -I. -Iproto -DHAVE_CONFIG_H -g -O2 -D_FORTIFY_SOURCE=1 Linking: gcc -L/usr/local/lib -o vim.exe -lm -lncurses -liconv

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Problem regarding listShuttle component in richFaces ?

- by Hari

I am a newbee for Richfaces components, When i am using the <rich:listShuttle> the Arraylist specified in the targetValue is now getting updated with the latest data? Kindly help MyJSF File <a4j:region> <rich:listShuttle sourceValue="#{bean.selectItems}" id="one" targetValue="#{bean.selectItemsone}" var="items" listsHeight="150" sourceListWidth="130" targetListWidth="130" sourceCaptionLabel="Intial Items" targetCaptionLabel="Selected Items" converter="Listconverter"> <rich:column> <h:outputText value="#{items.value}"></h:outputText> </rich:column> </rich:listShuttle> </a4j:region> <a4j:region> <a4j:commandButton value="Submit" action="#{bean.action}" /> </a4j:region> My Managed Bean enter code here private List<String> selectedData; private List<BeanItems> selectItems; private List<BeanItems> selectItemsone; public String action() { System.out.println(selectItems); System.out.println(selectItemsone); System.out.println("Select Item List"); Iterator<BeanItems> iterator = selectItems.iterator(); while (iterator.hasNext()) { BeanItems item = (BeanItems) iterator.next(); System.out.println(item.getValue()); } System.out.println("/nSelect Item one list "); Iterator<BeanItems> iterator2 = selectItemsone.iterator(); while (iterator2.hasNext()) { BeanItems item = (BeanItems) iterator2.next(); System.out.println(item.getValue()); } return ""; } public void setSelectedData(List<String> selectedData) { this.selectedData = selectedData; } public List<String> getSelectedData() { return selectedData; } /** * @return the selectItems */ public List<BeanItems> getSelectItems() { if (selectItems == null) { selectItems = new ArrayList<BeanItems>(); selectItems.add(new BeanItems("value4", "label4")); selectItems.add(new BeanItems("value5", "label5")); selectItems.add(new BeanItems("value6", "label6")); selectItems.add(new BeanItems("value7", "label7")); selectItems.add(new BeanItems("value8", "label8")); selectItems.add(new BeanItems("value9", "label9")); selectItems.add(new BeanItems("value10", "label10")); } return selectItems; } /** * @return the selectItemsone */ public List<BeanItems> getSelectItemsone() { if (selectItemsone == null) { selectItemsone = new ArrayList<BeanItems>(); selectItemsone.add(new BeanItems("value1", "label1")); selectItemsone.add(new BeanItems("value2", "label2")); selectItemsone.add(new BeanItems("value3", "label3")); } return selectItemsone; } My Converter Class enter code here public Object getAsObject(FacesContext context, UIComponent component,String value) { int index = value.indexOf(':'); return new BeanItems(value.substring(0, index), value.substring(index + 1)); } public String getAsString(FacesContext context, UIComponent component,Object value) { BeanItems beanItems = (BeanItems) value; return beanItems.getValue() + ":" + beanItems.getData(); } My BeanItems Class enter code here private String data; //Getter & setter private String value; //Getter & setter public BeanItems() { } public BeanItems(String value, String data) { this.value = value; this.data = data; } public int hashCode() { final int prime = 31; int result = 1; result = prime * result + ((data == null) ? 0 : data.hashCode()); result = prime * result + ((value == null) ? 0 : value.hashCode()); return result; } public boolean equals(Object obj) { if (this == obj) return true; if (obj == null) return false; if (getClass() != obj.getClass()) return false; final BeanItems other = (BeanItems) obj; if (data == null) { if (other.data != null) return false; } else if (!data.equals(other.data)) return false; if (value == null) { if (other.value != null) return false; } else if (!value.equals(other.value)) return false; return true; }

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"Error occurred during initialization of VM" in linux server

- by Khoyendra Pande

I am trying to run java command in linux server it was running well but today when I tried to run java I got some error- Error occurred during initialization of VM Could not reserve enough space for object heap Could not create the Java virtual machine. my memory space is - root@vps [~]# free -m total used free shared buffers cached Mem: 8192 226 7965 0 0 0 -/+ buffers/cache: 226 7965 Swap: 0 0 0 How can I solve this problem.

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Where's my Open-With gVim context menu option in Windows 7?

- by David Mackintosh

I have gVim installed. Under Vista and XP, this offered me an addition to either the object context menu of "Edit with gVim", or an addtion to the "Open With" context menu of "gVim". This would let me send arbitrary files to gVim for editing. Under Windows 7 64-bit, I have installed gVim -- twice, as it happens -- and there's no menu item. How do I add an option to send arbitrary files to gVim for viewing/editing?

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Red X in Active Directory

- by rodey

What exactly does a red 'X' in Active Directory represent? I know that a red 'X' over a user account means the account is disabled, but what does it represent when placed next to a Computer object?

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Hybrid gmail MX + postfix for local accounts

- by krunk

Here's the setup: We have a domain, mydomain.com. Everything is on our own server, except general email accounts which are through gmail. Currently gmail is set as the MX record. The server also has various email aliases it needs to support for bug trackers and such. e.g. [email protected] |/path/to/issuetracker.script I'm struggling with a setup that allows the following, both locally and from user's email clients. guser1 - has a gmail account and a local account guser2 - only has a gmail account bugs - has a pipe alias in /etc/aliases for issue tracker Scenarios mail to [email protected] from local host (crons and such) needs to go to gmail account mail to [email protected] from local host mail to [email protected] needs to be piped to the local issue tracker script So, the first stab was creating a transport map. In this scenario, the our server would be set as teh MX and guser* destined emails are sent to gmail. Put the gmail users in a map like so: [email protected] smtp:gmailsmtp:25 [email protected] smtp:gmailsmtp:25 Problems: Ignores extensions such as [email protected] Only works if append_at_myorigin = no (if set to yes, gmail refuses to connect with: E4C7E3E09BA3: to=, relay=none, delay=0.05, delays=0.02/0.01/0.02/0, dsn=4.4.1, status=deferred (connect to gmail-smtp-in.l.google.com[209.85.222.57]:25: Connection refused)) since append_at_myorigin is set to no, all received emails have (unknown sender) The second stab was to set explicit localhost aliases in /etc/aliases and do a domain wide forward on mydomain. This too requires setting the local server as the MX: root: root@localhost # transport mydomain.com smtp:gmailsmtp:25 Problems: * If I create a transport map for a domain that matches "$myhostname", the aliases file is never parsed. So when a local user (or daemon) sends an email like: mail -s "testing" root < text.txt Postfix ignores the /etc/alias entry and maps to [email protected] and attempts to send it to the gmail transport mapping. Third stab: Create a subdomain for the bugs, something like bugs.mydomain.com. Set the MX for this domain to local server and leave the MX for mydomain.com to the Gmail server. Problems: * Does not solve the issue with local accounts. So when the bug tracker responds to an email from [email protected], it uses a local transport and the user never receives the email. % postconf -n alias_database = hash:/etc/aliases alias_maps = hash:/etc/aliases append_at_myorigin = no append_dot_mydomain = no biff = no config_directory = /etc/postfix inet_interfaces = all mailbox_command = procmail -a "$EXTENSION" mailbox_size_limit = 0 mydestination = $myhostname, localhost.$myhostname, localhost myhostname = mydomain.com mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 myorigin = /etc/mailname readme_directory = no recipient_delimiter = + relayhost = smtp_tls_cert_file = /etc/ssl/certs/kspace.pem smtp_tls_enforce_peername = no smtp_tls_key_file = /etc/ssl/certs/kspace.pem smtp_tls_note_starttls_offer = yes smtp_tls_scert_verifydepth = 5 smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache smtp_use_tls = yes smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU) smtpd_recipient_restrictions = permit_mynetworks, reject_invalid_hostname, reject_non_fqdn_sender, reject_non_fqdn_recipient, reject_unknown_sender_domain, reject_unknown_recipient_domain, reject_unauth_destination smtpd_tls_ask_ccert = yes smtpd_tls_req_ccert = no smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache tls_random_source = dev:/dev/urandom transport_maps = hash:/etc/postfix/transport

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How to convert an MKV to AVI with minimal loss

- by OSX NINJA

To convert an MKV to AVI, I do two things. The first thing I do is this: ffmpeg -i filename.mkv -vcodec copy -acodec copy output.avi or this: ffmpeg -i filename.mkv -sameq -acodec copy output.avi Either of these will convert the MKV to an AVI, but the problem is that the video does not play smoothly for some reason. That's fine though, because if I do one more thing it gets fixed: ffmpeg -i output.avi -vcodec mpeg4 -b 4000k -acodec mp2 -ab 320k converted.avi After I do this then the file plays without problem. I had success doing it this way for one file, but then I tried it on another file, and there is a slight, but noticeable loss in video quality. This is the output I get when doing the second step: FFmpeg version 0.6.1, Copyright (c) 2000-2010 the FFmpeg developers built on Dec 29 2010 18:02:10 with gcc 4.2.1 (Apple Inc. build 5664) configuration: libavutil 50.15. 1 / 50.15. 1 libavcodec 52.72. 2 / 52.72. 2 libavformat 52.64. 2 / 52.64. 2 libavdevice 52. 2. 0 / 52. 2. 0 libswscale 0.11. 0 / 0.11. 0 Seems stream 0 codec frame rate differs from container frame rate: 359.00 (359/1) -> 29.92 (359/12) Input #0, avi, from 'output.avi': Metadata: ISFT : Lavf52.64.2 Duration: 00:04:17.21, start: 0.000000, bitrate: 3074 kb/s Stream #0.0: Video: mpeg4, yuv420p, 704x480 [PAR 229:189 DAR 5038:2835], 29.92 fps, 29.92 tbr, 29.92 tbn, 359 tbc Stream #0.1: Audio: vorbis, 48000 Hz, stereo, s16 Output #0, avi, to 'converted.avi': Metadata: ISFT : Lavf52.64.2 Stream #0.0: Video: mpeg4, yuv420p, 704x480 [PAR 229:189 DAR 5038:2835], q=2-31, 4000 kb/s, 29.92 tbn, 29.92 tbc Stream #0.1: Audio: mp2, 48000 Hz, stereo, s16, 320 kb/s Stream mapping: Stream #0.0 -> #0.0 Stream #0.1 -> #0.1 I just used arbitrarily large settings on the second step and it worked nicely before but not in this case. What settings should I use?

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Trying to setup a PHP daemon using System_Daemon and I'm having issues getting it to run.

- by yummm

I get the following error when trying to start a daemon using Ubuntu 10.04 and the PHP5: PHP Warning: PHP Startup: Unable to load dynamic library 'usr/lib/php5/20060613/pcntl.so' - /usr/lib/php5/20060613/pcntl.so: cannot open shared object file: No such file or directory in Unknown on line 0 Does System_Daemon try to call pcntl? If so, why is it looking for the file where it does not exist?

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Call out to script to stop with attribute in wWWHomePage

- by Steven Maxon

I'm getting an error when I try and call out the script to stop in line 8 'Bind to the user object using the current user Set objSysInfo = CreateObject("ADSystemInfo") strUserDN = objSysInfo.UserName Set objUser = GetObject("LDAP://" & strUserDN) strwWWHomePage = objItem.Get("wWWHomePage") If wWWHomePage < 6 Then wscript.quit Else Set ppt = CreateObject("PowerPoint.Application") ppt.Visible = True ppt.Presentations.Open "\abngan01\tracking\ppt.pptx" End If

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http://localhost/ always gives 502 unknown host

- by Nitesh Panchal

My service for World Wide Web Publishing Service started successfully but whenever I browse to http://localhost/ I always get 502 Unknown host. Also, wampapache is installed side by side but when I stop IIS service and start wampapache from services.msc I get error and when I view it in System event log I get this error: - <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event"> - <System> <Provider Name="Service Control Manager" Guid="{555908d1-a6d7-4695-8e1e-26931d2012f4}" EventSourceName="Service Control Manager" /> <EventID Qualifiers="49152">7024</EventID> <Version>0</Version> <Level>2</Level> <Task>0</Task> <Opcode>0</Opcode> <Keywords>0x8080000000000000</Keywords> <TimeCreated SystemTime="2011-06-12T17:43:28.223498400Z" /> <EventRecordID>346799</EventRecordID> <Correlation /> <Execution ProcessID="456" ThreadID="3936" /> <Channel>System</Channel> <Computer>MACHINENAME</Computer> <Security /> </System> - <EventData> <Data Name="param1">wampapache</Data> <Data Name="param2">%%1</Data> </EventData> </Event> I am fed up of this error and it is driving me nuts. I feel like banging my head against the laptop. I am really serious. Without concentrating on my real application I am trying to solve this issue since 3 hours. I google various threads and few of them said that there could be issue of Reporting Services or Skype. But I have uninstalled Skype and Reporting Services are disabled. What more should I do? I have hosts file present in etc directory and it does have mapping for localhost to 127.0.0.1. What more could I do?

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iPad memory warning

- by fer

How much memory can an application use on the iPad? sometimes I receive a memory warning using 8mb using object allocation instruments.

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Error on table import

- by Moazam Ali

I am importing tables from my backup server to main server through import; all the tables import successfully but one table could not import and gives the error below. What should i do with it? error at destination for row number 2334233 errors encountered so far in this task : 1 could not allocate space for object 'operator_audit_trail' in database sens_ms because the 'sens_index' file group is full

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How to get physical partition name from iSCSI details on Windows?

- by Barry Kelly

I've got a piece of software that needs the name of a partition in \Device\Harddisk2\Partition1 style, as shown e.g. in WinObj. I want to get this partition name from details of the iSCSI connection that underlies the partition. The trouble is that disk order is not fixed - depending on what devices are connected and initialized in what order, it can move around. So suppose I have the portal name (DNS of the iSCSI target), target IQN, etc. I'd like to somehow discover which volumes in the system relate to it, in an automated fashion. I can write some PowerShell WMI queries that get somewhat close to the desired info: PS> get-wmiobject -class Win32_DiskPartition NumberOfBlocks : 204800 BootPartition : True Name : Disk #0, Partition #0 PrimaryPartition : True Size : 104857600 Index : 0 ... From the Name here, I think I can fabricate the corresponding name by adding 1 to the partition number: \Device\Harddisk0\Partition1 - Partition0 appears to be a fake partition mapping to the whole disk. But the above doesn't have enough information to map to the underlying physical device, unless I take a guess based on exact size matching. I can get some info on SCSI devices, but it's not helpful in joining things up (iSCSI target is Nexenta/Solaris COMSTAR): PS> get-wmiobject -class Win32_SCSIControllerDevice __GENUS : 2 __CLASS : Win32_SCSIControllerDevice ... Antecedent : \\COBRA\root\cimv2:Win32_SCSIController.DeviceID="ROOT\\ISCSIPRT\\0000" Dependent : \\COBRA\root\cimv2:Win32_PnPEntity.DeviceID="SCSI\\DISK&VEN_NEXENTA&PROD_COMSTAR... Similarly, I can run queries like these: PS> get-wmiobject -namespace ROOT\WMI -class MSiSCSIInitiator_TargetClass PS> get-wmiobject -namespace ROOT\WMI -class MSiSCSIInitiator_PersistentDevices These guys return information relating to my iSCSI target name and the GUID volume name respectively (a volume name like \\?\Volume{guid-goes-here}), but the GUID volume name is no good to me, and there doesn't appear to be a reliable correspondence between the target name and the volume that I can join on. I simply can't find an easy way of getting from an IQN (e.g. iqn.1992-01.com.example:storage:diskarrays-sn-a8675309) to physical partitions mapped from that target. The way I do it by hand? I start Disk Management, and look for a partition of the correct size, verify that its driver says NEXENTA COMSTAR, and look at the disk number. But even this is unreliable if I have multiple iSCSI volumes of the exact same size. Any suggestions?

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Change owner recursively with Powershell?

- by Mikael Grönfelt

I'm trying to use Powershell to change owner of a folder, recursively. I'm basically using this code: $acct1 = New-Object System.Security.Principal.NTAccount('DOMAIN\Enterprise Admins') $profilefolder = Get-Item MyFolder $acl1 = $profilefolder.GetAccessControl() $acl1.SetOwner($acct1) set-acl -aclobject $acl1 -path MyFolder This will change ownership at the first level, but not for any subfolders or files. Is there a way to extend the scope to all content of MyFolder?

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Windows 2003 Storage Server Hanging on Large File Transfers

- by user25272

In one of our offices we have a Dell PowerVault 745N NAS device which acts as the main file server. Its running 32bit Windows 2003 Storage Server SP2 with 3GB RAM. The server holds around 60 users HOME folders, which are mapped via AD. The office clients are a mix of XP SP3, Vista and Windows 7. Occasionally the server will completely hang when transferring large files. When the hang happens the console becomes unresponsive with only the mouse active and blank wallpaper. Sometimes stopping the copy frees the server, sometimes not. The hanging can last around 20 minutes. During this time other servers also become unresponsive with blank wallpaper at the console. If you do manage to get onto another server the taskbar and run commands are unresponsive. This also transcends to the client computers sometimes with explorer crashing. I'm guessing this is due to the HOME folder mapping. Eventually the NAS server with free up and everything will be back to normal. The server is configured as follows: PERC 4/DC DATA 2 - 12 SCSI HDD - RAID5 SHADOWCOPY 2 SCSI HDD - RAID1 CERC SATA DATA 11 4 SATA HDD - RAID5 OS 4 SATA HDD - RAID5 All the drivers and firmware is up to date. I've been through all the diagnostics with Dell and the hardware has come up clean including full HDD tests on the arrays. The server has NOD32 installed as the AV, but the hanging happens when it is uninstalled. There are no errors in the event log when this happens and we don't have any errors logged on any of our ProCurve switches. DNS is fine on the domain and AD from what I can tell is running happily. There are no DFS or NFS shares setup either. All the shares are standard Windows. I've unchecked the allow the computer to turn off this device to save power box under Power Management on the NIC. "Set Link Speed and Duplex to Auto-negotiate 1000 " Increased Receive Descriptors buffer from 256 to 352 (reserves more CPU resource for handling data) I've run network traces using network monitor and have found the following: 417 8.078125 {SMB:192, NbtSS:25, TCP:24, IPv4:23} 192.168.2.244 192.168.5.35 SMB SMB:R; Nt Create Andx - NT Status: System - Error, Code = (52) STATUS_OBJECT_NAME_NOT_FOUND I've tried different cabling; NICs and switch ports all with the same result. Transferring files from other servers on the domain is fine. All I haven't done is run CHKDSK on the drives to look for any file system errors. On the Vista clients I have also run netsh interface tcp set global autotuning=disabled with no result. Could it be that the server has a faulty drive or that the I/O is too much for it to handle? Any ideas why would the hang cause issues with the other servers on the LAN? Many Thanks.

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Unable to locate Windows Server Error log files

- by Sam007

I am getting an error in my application on 500 Internal Server Error. The firebug gives me, NetworkError: 500 Internal Server Error - http://webgis.arizona.edu/ArcGIS/rest/services/webGIS/Shock_Models/GPServer/Income_Log/jobs/jc09c501156564f71abc5d98393581267/results/final_shp?dpi=96&transparent=true&format=png8&imageSR=102100&f=image&bbox=%7B%22xmin%22%3A-14519891.438356264%2C%22ymin%22%3A637618.0139790997%2C%22xmax%22%3A-6692739.741956295%2C%22ymax%22%3A6507981.786279075%2C%22spatialReference%22%3A%7B%22wkid%22%3A102100%7D%7D&bboxSR=102100&size=800%2C600 And when I goto that particular link, I get this error, Server Error - Object reference not set to an instance of an object. Any idea how I can correct it? UPDATE I was told to use fiddler and see the error details that is occurring over the network and this is the output that I got, SESSION STATE: Done. Response Entity Size: 849 bytes. == FLAGS ================== BitFlags: [ClientPipeReused, ServerPipeReused] 0x18 X-CLIENTPORT: 2010 X-RESPONSEBODYTRANSFERLENGTH: 849 X-EGRESSPORT: 2023 X-HOSTIP: 128.196.53.161 X-PROCESSINFO: firefox:2248 X-CLIENTIP: 127.0.0.1 X-SERVERSOCKET: REUSE ServerPipe#2 == TIMING INFO ============ ClientConnected: 15:53:51.383 ClientBeginRequest: 15:53:51.494 GotRequestHeaders: 15:53:51.494 ClientDoneRequest: 15:53:51.494 Determine Gateway: 0ms DNS Lookup: 0ms TCP/IP Connect: 0ms HTTPS Handshake: 0ms ServerConnected: 15:52:45.077 FiddlerBeginRequest: 15:53:51.495 ServerGotRequest: 15:53:51.495 ServerBeginResponse: 15:53:51.679 GotResponseHeaders: 15:53:51.679 ServerDoneResponse: 15:53:51.679 ClientBeginResponse: 15:53:51.679 ClientDoneResponse: 15:53:51.679 Overall Elapsed: 00:00:00.1850106 The response was buffered before delivery to the client. == WININET CACHE INFO ============ This URL is not present in the WinINET cache. [Code: 2] * Note: Data above shows WinINET's current cache state, not the state at the time of the request. * Note: Data above shows WinINET's Medium Integrity (non-Protected Mode) cache only. But I am still confused as to what the error is? This is the application. I am not sure if the error is due to the ArcGIS-Server or the Windows Server 2008. I am new on working with the Windows Server and wanted to know where can I look for the error lof files? This is the link which gives the details and the log info of the job executed. This is the output.

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JTabbedPane: only first tab is drawn, the second is always empty (newbie Q)

- by paul

I created a very simple JTabbedPane by first creating an empty JTabbedPane object, then 2 JPanels that I later add. Each JPanel is holding a object that extends JButton and implements MouseListener. Each of these holds a different image loaded from a file; the image is held locally as a buffered image and as an image icon, etc., all of which works great. The point of all that is to allow resizing of the image when the button is resized (using getscaledinstance()), because the panel is resized, because the JTabbedPane is resized, etc., within the JFrame that holds everything. I override paintComponent() to accomplish this in the class that extends JButton. I am using MigLayout Manager, and all is well on that front controlling layout constraints, growing, filling, initial sizes, preferred sizes, etc. The images the buttons hold are of different sizes and proportions, but this caused no trouble before. Up until 2 days ago everything worked fairly well. I made some changes trying to tweak some resizing issues as I was picking up MigLayout manager. At the time I was playing around with setting various min, max, and preferred sizes using the methods provided for by the components, not the layout manager. I also fooled a bit with pack(), validate(), visible(), opaque() etc., and yes I read the article about Swing and AWT painting here: http://java.sun.com/products/jfc/tsc/articles/painting/ , and I switched to relying more and more on MigLayout. On an unrelated note, it appears JFrame's do not honor maxsize? Somehow, today, with and without using any of these methods provided by swing, with or without using MigLayout manager to handle some of these matters instead, I now have a JTabbedPane that correctly displays the FIRST JPanel I add, but NOT THE SECOND JPanel--which, while present as a tab--does not show when selected. I have switched the order of which panel is added first, and this still holds true regardless of which JPanel I add first, telling me the JPanels are ok, and the problem is most likely in the JTabbedPane. I click on the second tab, the JTabbedPane switches, but I have what appears to be a blank button in the JPanel. A few console system-out statements reveal the following: a) that the second panel and its button are constructed b) no mouse events are being captured when I click on where the second panel and button should reside, as if it didn't exist at that point; c) when I switch to the second tab, the overrided paintComponent() method of the button within that second JPanel is never called, so it is in fact never being painted despite the tab in which it resides becoming visible; d) the JTabbpedPane getComponentCount() returns a correct value of 2 after adding the 2nd panel; e) MigLayout manager actually rocks, but I digress... I cannot now revert to my older code, and despite my best efforts to undo whatever changes caused this, I cannot fix my new problem. I've commented out everything but the most essential calls: constructors for each object--with MigLayout; add() for placing the buttons on the panels using string-arguments appropriate for MigLayout; add() for placing the panels on the JTabbedPane, also with MigLayout string arguments; setting the default op on close for the JFrame; and setting the JFrame visible. This means I do not fiddle with optimization settings, double buffering settings, opaque settings, but leave them as default, and still, no fix; the second panel will not show itself. Each panel, I should add, when it is the first to be loaded, works fine, again re-affirming that the panels and buttons are themselves ok. Here is part of what I am doing: //Note: BuildaButton is a class that merely constructs my instances File f = new File("/foo.jpg"); button1 = new BuildaButton().BuildaButton(f).buildfoo1Button(); f = new File("/foo2.jpg"); button2 = new BuildaButton().BuildaButton(f).buildfoo2Button(); MigLayout ml = new MigLayout("wrap 1", "[fill, grow]0[fill, grow]", "[fill, grow]0[fill, grow]"); MigLayout ml2 = new MigLayout("wrap 2", "[fill, grow]5[fill, grow]", "[fill, grow]0[fill, grow]"); foo1panel = new JPanel(ml); foo1panel.add(button1, "w 234:945:, h 200:807:"); foo2panel = new JPanel(ml); foo2panel.add(button2, "w 186:752:, h 200:807:"); tabs.add("foo1", foo1panel); tabs.add("foo2", foo2panel); System.out.println("contents of tabs: " + tabs.getComponentCount() + " elements"); mainframe.setLayout(ml2); mainframe.setMinimumSize(new Dimension(850,800)); mainframe.add(tabs, "w 600:800:, h 780:780:"); //controlpanel is a still blank jpanel that holds nothing--it is a space holder for now & will be utilized mainframe.add(controlpanel, "w 200:200:200, h 780:780:"); mainframe.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); mainframe.setVisible(true); Thank you in advance for any help you can give.

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Nginx Proxying to Multiple IP Addresses for CMS' Website Preview

- by Matthew Borgman

First-time poster, so bear with me. I'm relatively new to Nginx, but have managed to figure out what I've needed... until now. Nginx v1.0.15 is proxying to PHP-FPM v.5.3.10, which is listening at http://127.0.0.1:9000. [Knock on wood] everything has been running smoothly in terms of hosting our CMS and many websites. Now, we've developed our CMS and configured Nginx such that each supported website has a preview URL (e.g. http://[WebsiteID].ourcms.com/) where the site can be, you guessed it, previewed in those situations where DNS doesn't yet resolve to our server, etc. Specifically, we use Nginx's Map module (http://wiki.nginx.org/HttpMapModule) and a regular expression in the server_name of the CMS' server{ } block to 1) lookup a website's primary domain name from its preview URL and then 2) forward the request to the "matched" primary domain. The corresponding Nginx configuration: map $host $h { 123.ourcms.com www.example1.com; 456.ourcms.com www.example2.com; 789.ourcms.com www.example3.com; } and server { listen [OurCMSIPAddress]:80; listen [OurCMSIPAddress]:443 ssl; root /var/www/ourcms.com; server_name ~^(.*)\.ourcms\.com$; ssl_certificate /etc/nginx/conf.d/ourcms.com.chained.crt; ssl_certificate_key /etc/nginx/conf.d/ourcms.com.key; location / { proxy_pass http://127.0.0.1/; proxy_set_header Host $h; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; } } (Note: I do realize that the regex in the server_name should be "tighter" for security reasons and match only the format of the website ID (i.e. a UUID in our case).) This configuration works for 99% of our sites... except those that have a dedicated IP address for an installed SSL certificate. A "502 Bad Gateway" is returned for these and I'm unsure as to why. This is how I think the current configuration works for any requests that match the regex (e.g. http://123.ourcms.com/): Nginx looks up the website's primary domain from the mapping, and as a result of the proxy_pass http://127.0.0.1 directive, passes the request back to Nginx itself, which since the proxied request has a hostname corresponding to the website's primary domain name, via the proxy_set_header Host $h directive, Nginx handles the request as if it was as direct request for that hostname. Please correct me if I'm wrong in this understanding. Should I be proxying to those website's dedicated IP addresses? I tried this, but it didn't seem to work? Is there a setting in the Proxy module that I'm missing? Thanks for the help. MB

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How do you splice out a part of an xvid encoded avi file, with ffmpeg? (no problems with other files

- by yegor

Im using the following command, which works for most files, except what seems to be xvid encoded ones /usr/bin/ffmpeg -sameq -i file.avi -ss 00:01:00 -t 00:00:30 -ac 2 -r 25 -copyts output.avi So this should basically splice out 30 seconds of video + audio, starting from 1 minute mark. It does START encoding at the 00:01:00 mark but it goes all the way to the end of the file for some reason, ignoring that I want just 30 seconds. The output looks like this. FFmpeg version git-ecc4bdd, Copyright (c) 2000-2010 the FFmpeg developers built on May 31 2010 04:52:24 with gcc 4.4.3 20100127 (Red Hat 4.4.3-4) configuration: --enable-libx264 --enable-libxvid --enable-libmp3lame --enable-libopenjpeg --enable-libfaac --enable-libvorbis --enable-gpl --enable-nonfree --enable-libxvid --enable-pthreads --enable-libfaad --extra-cflags=-fPIC --enable-postproc --enable-libtheora --enable-libvorbis --enable-shared libavutil 50.15. 2 / 50.15. 2 libavcodec 52.67. 0 / 52.67. 0 libavformat 52.62. 0 / 52.62. 0 libavdevice 52. 2. 0 / 52. 2. 0 libavfilter 1.20. 0 / 1.20. 0 libswscale 0.10. 0 / 0.10. 0 libpostproc 51. 2. 0 / 51. 2. 0 [mpeg4 @ 0x17cf770]Invalid and inefficient vfw-avi packed B frames detected Input #0, avi, from 'file.avi': Metadata: ISFT : VirtualDubMod 1.5.10.2 (build 2540/release) Duration: 00:02:00.00, start: 0.000000, bitrate: 1587 kb/s Stream #0.0: Video: mpeg4, yuv420p, 672x368 [PAR 1:1 DAR 42:23], 25 tbr, 25 tbn, 25 tbc Stream #0.1: Audio: ac3, 48000 Hz, 5.1, s16, 448 kb/s File 'lol6.avi' already exists. Overwrite ? [y/N] y Output #0, avi, to 'lol6.avi': Metadata: ISFT : Lavf52.62.0 Stream #0.0: Video: mpeg4, yuv420p, 672x368 [PAR 1:1 DAR 42:23], q=2-31, 200 kb/s, 25 tbn, 25 tbc Stream #0.1: Audio: mp2, 48000 Hz, 2 channels, s16, 64 kb/s Stream mapping: Stream #0.0 -> #0.0 Stream #0.1 -> #0.1 Press [q] to stop encoding [mpeg4 @ 0x17cf770]Invalid and inefficient vfw-avi packed B frames detected [buffer @ 0x184b610]Buffering several frames is not supported. Please consume all available frames before adding a new one. frame= 1501 fps=104 q=0.0 Lsize= 15612kB time=30.02 bitrate=4259.7kbits/s ts/s video:15303kB audio:235kB global headers:0kB muxing overhead 0.482620% if I convert this file to mp4 for example, and then perform the same action, it works perfectly.

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How can I change how OS X's 'say' command pronounces a word?

- by jwhitlock

OS X's say command is useful for some tasks (such as Skype's 'notify me when a contact comes online), but it is pronouncing some names incorrectly. Is there a way to teach say to pronounce a word differently? For example, try: say "Hi, Joel Spolsky" The 'ol' sounds like 'ball' rather than 'old'. I'd like to add an exception that say "Pronounce Spolsky like this", rather than try to teach new linguistic rules. I bet there is a way since it can pronounce "iphone" as Apple wants. Update - After some research, here's what I've learned: Text-to-speech is split between turning the text to phonemes, and then the phonemes are turned into audio using a voice. Changing the voice doesn't effect the phonemes. The Speech Synthesis Manager has some functions for turning text to phonemes, and a method for registering a speech dictionary that will add new text-phoneme maps. However, Apple's speech dictionary must be in a binary form - I didn't find any plist XML. Using dtrace while running say, I found some interesting files opened in /System/Library/PrivateFrameworks/SpeechDictionary.framework/Resources. This is probably the speech dictionary, but they are all binary, except for Homophones, which is XML. Adding entries to Homophones does nothing - it is probably used in speech-to-text. They are also code signed by Apple - changing them may prevent some programs from working. PrefixDictionary CartNames CartLite SymbolDictionary Homophones There are ways to add text versions of application interface elements so VoiceOver works, a lot of which a developer gets for free, but there are tricky bits. The standard here appears to be to use a phonetic spelling as needed. My guesses are: say is a light layer of code on top of the Speech Synthesis Manager. It would be easy for the Apple devs to add a command line option to take the path to a speech dictionary plist for alternate phoneme mapping, but they didn't. It may be a useful open-source project to write a better say. Skype probably uses Speech Synthesis Manager directly, leaving no hooks to change the way my friend's names are pronounced, other than spelling them phonetically, which is silly. The easiest way to make a command line version of say is how JRobert suggested. Here's my quick implementation, using Doug Harris's spelling suggestion: #!/bin/sh echo $@ | tr '[A-Z]' '[a-z]' | sed "s/spolsky/spowlsky/g" | /usr/bin/say Finally, some fun command line stuff: # Apple is weird sqlite3 /System/Library/PrivateFrameworks/SpeechDictionary.framework/Resources/Tuples .dump # Get too much information about what files are being opened sudo dtrace -n 'syscall::open*:entry { printf("%s %s",execname,copyinstr(arg0)); }' # Just fun say -v bad "Joel Spolsky Spolsky Spolsky Spolsky Spolsky, Joel Spolsky Spolsky Spolsky Spolsky Spolsky" echo "scale=1000; 4*a(1)" | bc -l | say

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Windows 2003/IIS6 - Unexpected Error: C0000005

- by Chirans

Our event logs are full of these errors Unexpected error. A trappable error (C0000005) occurred in an external object. The script cannot continue running. We have tried in various ways but could not stop this error. After continuous errors, the IIS hangs up. We are also getting another error, Warning: IIS log failed to write entry. Please help me with the solution.

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Invoke command with IP address as Target server does not works at all

- by Praveen

Please see the following command and with Trusted Hosts enabled, this does not work: Invoke-Command -ComputerName <IP address> -port 5985 -Credential (New-Object System.Management.Automation.PSCredential ('Domain\User', (ConvertTo-SecureString 'passwd' -AsPlainText -Force))) -Authentication CredSSP -ScriptBlock {Add-PSSnapin Microsoft.Exchange.Management.PowerShell.E2010;Get-Mailbox} This works well when Computername is a hostname. The IP address does not works at all

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adding up value of array and getting the average

- by sea_1987

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