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  • How to configure JAAS on JBoss?

    - by AntonioP
    Hey Im having a problem with "Failed to load users/passwords/role files: java.io.IOException: No properties file: users.properties or defaults: defaultUsers.properties found" error from jboss. No matter what I change in conf/login-config.xml always that same error. Turning on TRACE for org.jboss.security shows that it does Security domain: myapp followed by findResource: null and the above error. Ive tryed adding a users.properties to my .war WEB-INF/classes/users.properties to no avail. Why is jBoss doing like this? What is this JAAS and why does it need it? What does it require, where to put what files, if its possible Ill remove all of this org.jboss.security.auth.spi.UsersRolesLoginModule completly, just let me use my app. Thanks

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  • Insane SmartGWT + GWT situation... Error on instantiating ListGridRecord?

    - by Xandel
    Hi all, I am asking this here in the hope that someone has maybe come across this situation too... I have posted this on the SmartGWT forum: I am having an issue when trying to instantiate a ListGridRecord object on my server side. I am using the ListGrid on the client side, I want to use GWT's RPC to pass back an array of ListGridRecord objects to populate the grid with. I know that SmartGWT is designed to link to a datasource but I want full control over when I populate the grid and this shouldn't be as much of a nightmare as it is to do. I have searched high and low and cannot find anyone complaining about the same thing. The exception however (listed below) has come up (in my search findings) as a possible memory error - where increasing the memory (-Xmx512m argument) has apparently solved the problem. It did not, however, sort out mine. If anyone can shed any light on this I would greatly appreciate it! Here are my details: Developing using Eclipse Galileo on Ubuntu 9.04 (Jaunty) and GWT 2.0.3, I built the initial GWT project using the webAppCreator bundled with the GWT 2.0.3 release and imported the project into Eclipse as described on the GWT Getting Started Page (as using the GWT Eclipse plugin caused even more nightmares when trying to connect to a database - this is apparently due to using the Google App Engine and turning it off as all the posts suggested only causes ClassNotFound exceptions). The line that causes the error is literally: ListGridRecord a = new ListGridRecord(); The error I get is the following: 00:00:25.916 [WARN] Exception while dispatching incoming RPC call com.google.gwt.user.server.rpc.UnexpectedException : Service method 'public abstract java.lang.String za.co.company.product.client.service.EmployeeServi ce.getAllEmployeeAsListGridRecord()' threw an unexpected exception: java.lang.UnsatisfiedLinkError: com.smartgwt.client.util.LogUtil.setJSNIErrorHandl er()V at com.google.gwt.user.server.rpc.RPC.encodeResponseF orFailure(RPC.java:378) at com.google.gwt.user.server.rpc.RPC.invokeAndEncode Response(RPC.java:581) at com.google.gwt.user.server.rpc.RemoteServiceServle t.processCall(RemoteServiceServlet.java:188) at com.google.gwt.user.server.rpc.RemoteServiceServle t.processPost(RemoteServiceServlet.java:224) at com.google.gwt.user.server.rpc.AbstractRemoteServi ceServlet.doPost(AbstractRemoteServiceServlet.java :62) at javax.servlet.http.HttpServlet.service(HttpServlet .java:637) at javax.servlet.http.HttpServlet.service(HttpServlet .java:717) at org.mortbay.jetty.servlet.ServletHolder.handle(Ser vletHolder.java:487) at org.mortbay.jetty.servlet.ServletHandler.handle(Se rvletHandler.java:362) at org.mortbay.jetty.security.SecurityHandler.handle( SecurityHandler.java:216) at org.mortbay.jetty.servlet.SessionHandler.handle(Se ssionHandler.java:181) at org.mortbay.jetty.handler.ContextHandler.handle(Co ntextHandler.java:729) at org.mortbay.jetty.webapp.WebAppContext.handle(WebA ppContext.java:405) at org.mortbay.jetty.handler.HandlerWrapper.handle(Ha ndlerWrapper.java:152) at org.mortbay.jetty.handler.RequestLogHandler.handle (RequestLogHandler.java:49) at org.mortbay.jetty.handler.HandlerWrapper.handle(Ha ndlerWrapper.java:152) at org.mortbay.jetty.Server.handle(Server.java:324) at org.mortbay.jetty.HttpConnection.handleRequest(Htt pConnection.java:505) at org.mortbay.jetty.HttpConnection$RequestHandler.co ntent(HttpConnection.java:843) at org.mortbay.jetty.HttpParser.parseNext(HttpParser. java:647) at org.mortbay.jetty.HttpParser.parseAvailable(HttpPa rser.java:211) at org.mortbay.jetty.HttpConnection.handle(HttpConnec tion.java:380) at org.mortbay.io.nio.SelectChannelEndPoint.run(Selec tChannelEndPoint.java:395) at org.mortbay.thread.QueuedThreadPool$PoolThread.run (QueuedThreadPool.java:488) Caused by: java.lang.UnsatisfiedLinkError: com.smartgwt.client.util.LogUtil.setJSNIErrorHandl er()V at com.smartgwt.client.util.LogUtil.setJSNIErrorHandl er(Native Method) at com.smartgwt.client.core.JsObject.(JsObjec t.java:30) at za.co.company.product.server.service.EmployeeServi ceImpl.getAllEmployeeAsListGridRecord(EmployeeServ iceImpl.java:83) at sun.reflect.NativeMethodAccessorImpl.invoke0(Nativ e Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Native MethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(De legatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at com.google.gwt.user.server.rpc.RPC.invokeAndEncode Response(RPC.java:562) at com.google.gwt.user.server.rpc.RemoteServiceServle t.processCall(RemoteServiceServlet.java:188) at com.google.gwt.user.server.rpc.RemoteServiceServle t.processPost(RemoteServiceServlet.java:224) at com.google.gwt.user.server.rpc.AbstractRemoteServi ceServlet.doPost(AbstractRemoteServiceServlet.java :62) at javax.servlet.http.HttpServlet.service(HttpServlet .java:637) at javax.servlet.http.HttpServlet.service(HttpServlet .java:717) at org.mortbay.jetty.servlet.ServletHolder.handle(Ser vletHolder.java:487) at org.mortbay.jetty.servlet.ServletHandler.handle(Se rvletHandler.java:362) at org.mortbay.jetty.security.SecurityHandler.handle( SecurityHandler.java:216) at org.mortbay.jetty.servlet.SessionHandler.handle(Se ssionHandler.java:181) at org.mortbay.jetty.handler.ContextHandler.handle(Co ntextHandler.java:729) at org.mortbay.jetty.webapp.WebAppContext.handle(WebA ppContext.java:405) at org.mortbay.jetty.handler.HandlerWrapper.handle(Ha ndlerWrapper.java:152) at org.mortbay.jetty.handler.RequestLogHandler.handle (RequestLogHandler.java:49) at org.mortbay.jetty.handler.HandlerWrapper.handle(Ha ndlerWrapper.java:152) at org.mortbay.jetty.Server.handle(Server.java:324) at org.mortbay.jetty.HttpConnection.handleRequest(Htt pConnection.java:505) at org.mortbay.jetty.HttpConnection$RequestHandler.co ntent(HttpConnection.java:843) at org.mortbay.jetty.HttpParser.parseNext(HttpParser. java:647) at org.mortbay.jetty.HttpParser.parseAvailable(HttpPa rser.java:211) at org.mortbay.jetty.HttpConnection.handle(HttpConnec tion.java:380) at org.mortbay.io.nio.SelectChannelEndPoint.run(Selec tChannelEndPoint.java:395) at org.mortbay.thread.QueuedThreadPool$PoolThread.run (QueuedThreadPool.java:488) Thanks in advance! Xandel

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  • MS-DOS 7.1, Active-Boot

    - by user3005255
    I created a MS-DOS 7.1 (Win 98) active-boot USB-flash stick and it functions properly. Nevertheless I still have some unsolved issues: I want to change my keyboard-layout to german but I don´t know where to start since I only have the "basic-DOS" with IO.sys, MSDOS.sys + command.com. I already created Autoexec.bat + config.sys but don´t know which files I need and which I have to change in order to get a german keyboard. Also I can´t really shutdown my DOS properly, what is the right way to do it in MS-DOS 7.1? Thanks very much in advance for your help!

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  • Does private browsing prevent socket events?

    - by Chris Cirefice
    I usually do my work in Google Chrome (v36.0.1985.143), private browsing enabled. I use Firefox to browse Stack Exchange, in normal mode so that all my logins are persisted. Sometimes I accidentally open an SE question in Chrome, so I copy-paste the URL to Firefox and get on reading. I left the SE tab in Chrome open, and up-voted a question in Firefox. Normally, you immediately see other users' voting activity via socket event emitting (possibly Socket.IO, I don't know SE's back-end). I noticed that in my Chrome tab, I didn't see the upvote that I had cast in Firefox. I had to refresh to be able to see the vote count change. So, as the title of the question states: does private browsing prevent socket events?

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  • How can a single disk in a hardware SATA RAID-10 array bring the entire array to a screeching halt?

    - by Stu Thompson
    Prelude: I'm a code-monkey that's increasingly taken on SysAdmin duties for my small company. My code is our product, and increasingly we provide the same app as SaaS. About 18 months ago I moved our servers from a premium hosting centric vendor to a barebones rack pusher in a tier IV data center. (Literally across the street.) This ment doing much more ourselves--things like networking, storage and monitoring. As part the big move, to replace our leased direct attached storage from the hosting company, I built a 9TB two-node NAS based on SuperMicro chassises, 3ware RAID cards, Ubuntu 10.04, two dozen SATA disks, DRBD and . It's all lovingly documented in three blog posts: Building up & testing a new 9TB SATA RAID10 NFSv4 NAS: Part I, Part II and Part III. We also setup a Cacit monitoring system. Recently we've been adding more and more data points, like SMART values. I could not have done all this without the awesome boffins at ServerFault. It's been a fun and educational experience. My boss is happy (we saved bucket loads of $$$), our customers are happy (storage costs are down), I'm happy (fun, fun, fun). Until yesterday. Outage & Recovery: Some time after lunch we started getting reports of sluggish performance from our application, an on-demand streaming media CMS. About the same time our Cacti monitoring system sent a blizzard of emails. One of the more telling alerts was a graph of iostat await. Performance became so degraded that Pingdom began sending "server down" notifications. The overall load was moderate, there was not traffic spike. After logging onto the application servers, NFS clients of the NAS, I confirmed that just about everything was experiencing highly intermittent and insanely long IO wait times. And once I hopped onto the primary NAS node itself, the same delays were evident when trying to navigate the problem array's file system. Time to fail over, that went well. Within 20 minuts everything was confirmed to be back up and running perfectly. Post-Mortem: After any and all system failures I perform a post-mortem to determine the cause of the failure. First thing I did was ssh back into the box and start reviewing logs. It was offline, completely. Time for a trip to the data center. Hardware reset, backup an and running. In /var/syslog I found this scary looking entry: Nov 15 06:49:44 umbilo smartd[2827]: Device: /dev/twa0 [3ware_disk_00], 6 Currently unreadable (pending) sectors Nov 15 06:49:44 umbilo smartd[2827]: Device: /dev/twa0 [3ware_disk_07], SMART Prefailure Attribute: 1 Raw_Read_Error_Rate changed from 171 to 170 Nov 15 06:49:45 umbilo smartd[2827]: Device: /dev/twa0 [3ware_disk_10], 16 Currently unreadable (pending) sectors Nov 15 06:49:45 umbilo smartd[2827]: Device: /dev/twa0 [3ware_disk_10], 4 Offline uncorrectable sectors Nov 15 06:49:45 umbilo smartd[2827]: Num Test_Description Status Remaining LifeTime(hours) LBA_of_first_error Nov 15 06:49:45 umbilo smartd[2827]: # 1 Short offline Completed: read failure 90% 6576 3421766910 Nov 15 06:49:45 umbilo smartd[2827]: # 2 Short offline Completed: read failure 90% 6087 3421766910 Nov 15 06:49:45 umbilo smartd[2827]: # 3 Short offline Completed: read failure 10% 5901 656821791 Nov 15 06:49:45 umbilo smartd[2827]: # 4 Short offline Completed: read failure 90% 5818 651637856 Nov 15 06:49:45 umbilo smartd[2827]: So I went to check the Cacti graphs for the disks in the array. Here we see that, yes, disk 7 is slipping away just like syslog says it is. But we also see that disk 8's SMART Read Erros are fluctuating. There are no messages about disk 8 in syslog. More interesting is that the fluctuating values for disk 8 directly correlate to the high IO wait times! My interpretation is that: Disk 8 is experiencing an odd hardware fault that results in intermittent long operation times. Somehow this fault condition on the disk is locking up the entire array Maybe there is a more accurate or correct description, but the net result has been that the one disk is impacting the performance of the whole array. The Question(s) How can a single disk in a hardware SATA RAID-10 array bring the entire array to a screeching halt? Am I being naïve to think that the RAID card should have dealt with this? How can I prevent a single misbehaving disk from impacting the entire array? Am I missing something?

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  • mount fstab partition with public access

    - by Mikhail
    How do I specify that an fstab mount-point should be public? I want /mnt/windows to be accessible to normal users. I believe I am using ntfs-3g. If I set the /mnt/windows to 777 will it be publicly accessible without changing the permissions on the NTFS disk? /dev/sdb4 /mnt/windows ntfs noatime 0 1 /dev/sdb5 / ext4 noatime 0 1 UUID=5AA4-168D /boot/efi vfat defaults 0 1 and localhost my_computer # stat /mnt/windows/ File: '/mnt/windows/' Size: 12288 Blocks: 24 IO Block: 512 directory Device: 814h/2068d Inode: 5 Links: 1 Access: (0700/drwx------) Uid: ( 0/ root) Gid: ( 0/ root) Access: 2014-08-21 18:29:13.597722200 -0500 Modify: 2014-08-21 18:29:13.597722200 -0500 Change: 2014-08-21 18:29:13.597722200 -0500 Birth: -

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  • master-slave-slave replication: master will become bottleneck for writes

    - by JMW
    hi, the mysql database has arround 2TB of data. i have a master-slave-slave replication running. the application that uses the database does read (SELECT) queries just on one of the 2 slaves and write (DELETE/INSERT/UPDATE) queries on the master. the application does way more reads, than writes. if we have a problem with the read (SELECT) queries, we can just add another slave database and tell the application, that there is another salve. so it scales well... Currently, the master is running arround 40% disk io due to the writes. So i'm thinking about how to scale the the database in the future. Because one day the master will be overloaded. What could be a solution there? maybe mysql cluster? if so, are there any pitfalls or limitations in switching the database to ndb? thanks a lot in advance... :)

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  • Twitter 2 for Android crash every time I try uploading multi photos [closed]

    - by Hazz
    Hello, I'm using the new Twitter 2 on Android 2.1. Whenever I hit the button which enables me to upload multiple photos in a single tweet, I always get the error "The application Camera (process com.sonyericsson.camera) has stopped unexpectidly. Please try again". However, uploading a single photo using the camera button in Twitter have no problem, it works. My phone is Sony Ericsson x10 mini pro. I tried signing out and back in, same result. Anything I can do to fix this? This is the log info I got using Log Collector: 02-23 15:05:57.328 I/ActivityManager( 1240): Starting activity: Intent { act=com.twitter.android.post.status cmp=com.twitter.android/.PostActivity } 02-23 15:05:57.338 D/PhoneWindow(15095): couldn't save which view has focus because the focused view com.android.internal.policy.impl.PhoneWindow$DecorView@45726938 has no id. 02-23 15:05:57.688 I/ActivityManager( 1240): Displayed activity com.twitter.android/.PostActivity: 340 ms (total 340 ms) 02-23 15:05:59.018 I/ActivityManager( 1240): Starting activity: Intent { act=android.intent.action.PICK typ=vnd.android.cursor.dir/image cmp=com.sonyericsson.camera/com.sonyericsson.album.grid.GridActivity } 02-23 15:05:59.038 I/ActivityManager( 1240): Start proc com.sonyericsson.camera for activity com.sonyericsson.camera/com.sonyericsson.album.grid.GridActivity: pid=15113 uid=10057 gids={1006, 1015, 3003} 02-23 15:05:59.128 I/dalvikvm(15113): Debugger thread not active, ignoring DDM send (t=0x41504e4d l=38) 02-23 15:05:59.158 I/dalvikvm(15113): Debugger thread not active, ignoring DDM send (t=0x41504e4d l=50) 02-23 15:05:59.448 I/ActivityManager( 1240): Displayed activity com.sonyericsson.camera/com.sonyericsson.album.grid.GridActivity: 423 ms (total 423 ms) 02-23 15:05:59.458 W/dalvikvm(15113): threadid=15: thread exiting with uncaught exception (group=0x4001e160) 02-23 15:05:59.458 E/AndroidRuntime(15113): Uncaught handler: thread AsyncTask #1 exiting due to uncaught exception 02-23 15:05:59.468 E/AndroidRuntime(15113): java.lang.RuntimeException: An error occured while executing doInBackground() 02-23 15:05:59.468 E/AndroidRuntime(15113): at android.os.AsyncTask$3.done(AsyncTask.java:200) 02-23 15:05:59.468 E/AndroidRuntime(15113): at java.util.concurrent.FutureTask$Sync.innerSetException(FutureTask.java:273) 02-23 15:05:59.468 E/AndroidRuntime(15113): at java.util.concurrent.FutureTask.setException(FutureTask.java:124) 02-23 15:05:59.468 E/AndroidRuntime(15113): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:307) 02-23 15:05:59.468 E/AndroidRuntime(15113): at java.util.concurrent.FutureTask.run(FutureTask.java:137) 02-23 15:05:59.468 E/AndroidRuntime(15113): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1068) 02-23 15:05:59.468 E/AndroidRuntime(15113): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:561) 02-23 15:05:59.468 E/AndroidRuntime(15113): at java.lang.Thread.run(Thread.java:1096) 02-23 15:05:59.468 E/AndroidRuntime(15113): Caused by: java.lang.IllegalArgumentException: Unsupported MIME type. 02-23 15:05:59.468 E/AndroidRuntime(15113): at com.sonyericsson.album.grid.GridActivity$AlbumTask.doInBackground(GridActivity.java:202) 02-23 15:05:59.468 E/AndroidRuntime(15113): at com.sonyericsson.album.grid.GridActivity$AlbumTask.doInBackground(GridActivity.java:124) 02-23 15:05:59.468 E/AndroidRuntime(15113): at android.os.AsyncTask$2.call(AsyncTask.java:185) 02-23 15:05:59.468 E/AndroidRuntime(15113): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305) 02-23 15:05:59.468 E/AndroidRuntime(15113): ... 4 more 02-23 15:05:59.628 E/SemcCheckin(15113): Get crash dump level : java.io.FileNotFoundException: /data/semc-checkin/crashdump 02-23 15:05:59.628 W/ActivityManager( 1240): Unable to start service Intent { act=com.sonyericsson.android.jcrashcatcher.action.BUGREPORT_AUTO cmp=com.sonyericsson.android.jcrashcatcher/.JCrashCatcherService (has extras) }: not found 02-23 15:05:59.648 I/Process ( 1240): Sending signal. PID: 15113 SIG: 3 02-23 15:05:59.648 I/dalvikvm(15113): threadid=7: reacting to signal 3 02-23 15:05:59.778 I/dalvikvm(15113): Wrote stack trace to '/data/anr/traces.txt' 02-23 15:06:00.388 E/SemcCheckin( 1673): Get Crash Level : java.io.FileNotFoundException: /data/semc-checkin/crashdump 02-23 15:06:01.708 I/DumpStateReceiver( 1240): Added state dump to 1 crashes 02-23 15:06:02.008 D/iddd-events( 1117): Registering event com.sonyericsson.idd.probe.android.devicemonitor::ApplicationCrash with 4314 bytes payload. 02-23 15:06:06.968 D/dalvikvm( 1673): GC freed 661 objects / 126704 bytes in 124ms 02-23 15:06:11.928 D/dalvikvm( 1379): GC freed 19753 objects / 858832 bytes in 84ms 02-23 15:06:13.038 I/Process (15113): Sending signal. PID: 15113 SIG: 9 02-23 15:06:13.048 I/WindowManager( 1240): WIN DEATH: Window{4596ecc0 com.sonyericsson.camera/com.sonyericsson.album.grid.GridActivity paused=false} 02-23 15:06:13.048 I/ActivityManager( 1240): Process com.sonyericsson.camera (pid 15113) has died. 02-23 15:06:13.048 I/WindowManager( 1240): WIN DEATH: Window{459db5e8 com.sonyericsson.camera/com.sonyericsson.album.grid.GridActivity paused=false} 02-23 15:06:13.078 I/UsageStats( 1240): Unexpected resume of com.twitter.android while already resumed in com.sonyericsson.camera 02-23 15:06:13.098 W/InputManagerService( 1240): Window already focused, ignoring focus gain of: com.android.internal.view.IInputMethodClient$Stub$Proxy@456e7168 02-23 15:06:21.278 D/dalvikvm( 1745): GC freed 2032 objects / 410848 bytes in 60ms

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  • WP7: play MP3 using Media with phonegap/Cordova

    - by Loda
    My problem: I use the Media Class from Cordova. The MP3 file is only played once (the first time). Code: Add this code to the Cordova Starter project to reproduce my problem: var playCounter = 0; function playMP3(){ console.log("playMP3() counter " + playCounter); var my_media = new Media("app/www/test.mp3");//ressource buildAction == content my_media.play(); playCounter++; } [...] <p onclick="playMP3();">Click to Play MP3</p> VS output: [...] GapBrowser_Navigated :: /app/www/index.html 'UI Task' (Managed): Loaded 'System.ServiceModel.Web.dll' 'UI Task' (Managed): Loaded 'System.ServiceModel.dll' Log:"onDeviceReady. You should see this message in Visual Studio's output window." 'UI Task' (Managed): Loaded 'Microsoft.Xna.Framework.dll' Log:"playMP3() counter 0" 'UI Task' (Managed): Loaded 'System.SR.dll' Log:"media on status :: {\"id\": \"fa123123-bc55-a266-f447-8881bd32e2aa\", \"msg\": 1, \"value\": 1}" A first chance exception of type 'System.ArgumentException' occurred in mscorlib.dll Log:"media on status :: {\"id\": \"fa123123-bc55-a266-f447-8881bd32e2aa\", \"msg\": 1, \"value\": 2}" Log:"media on status :: {\"id\": \"fa123123-bc55-a266-f447-8881bd32e2aa\", \"msg\": 2, \"value\": 2.141}" Log:"media on status :: {\"id\": \"fa123123-bc55-a266-f447-8881bd32e2aa\", \"msg\": 1, \"value\": 4}" Log:"playMP3() counter 1" A first chance exception of type 'System.ArgumentException' occurred in mscorlib.dll A first chance exception of type 'System.IO.IOException' occurred in mscorlib.dll A first chance exception of type 'System.IO.IsolatedStorage.IsolatedStorageException' occurred in mscorlib.dll Log:"media on status :: {\"id\": \"2de3388c-bbb6-d896-9e27-660f1402bc2a\", \"msg\": 9, \"value\": 5}" My Config: cordova-1.6.1.js Lumia 800 WP 7.5 (7.10.7740.16) WorkAround (kind of): Desactivate the app (turn off the screen) reactivate the app (turn on the screen) - you get one more shot. Any help is welcome as I am blocked on this since may days and I found no usefull information anywhere. Also, Can you tell me if this code work on your config ? . . . Update: add a demo code using a global var. Keeping the instance alive. result The test2.mp3 is played and can replay fine. the test.mp3 is not played at all. It is the first file you play that will work. Code function onDeviceReady() { document.getElementById("welcomeMsg").innerHTML += "Cordova is ready! version=" + window.device.cordova; console.log("onDeviceReady. You should see this message in Visual Studio's output window."); my_media = new Media("app/www/test.mp3");//ressource buildAction == content my_media2 = new Media("app/www/test2.mp3");//ressource buildAction == content } var playCounter = 0; var my_media = null; function playMP3(){ console.log("playMP3() counter " + playCounter); my_media.play(); playCounter++; } var my_media2 = null; function playMP32(){ console.log("playMP32() counter " + playCounter); my_media2.play(); playCounter++; } </script> [...] <p onclick="playMP3();">Click to Play MP3</p> <p onclick="playMP32();">Click to Play MP3 2</p> VS output: Log:"onDeviceReady. You should see this message in Visual Studio's output window." INFO: startPlayingAudio could not find mediaPlayer for 71888b14-86fe-4769-95c9-a9bb05d5555b Log:"playMP32() counter 0" INFO: startPlayingAudio could not find mediaPlayer for 71888b14-86fe-4769-95c9-a9bb05d5555b Log:"playMP32() counter 1" Log:"playMP3() counter 2" INFO: startPlayingAudio could not find mediaPlayer for b60fa266-d105-a295-a5be-fa2c6b824bc1 A first chance exception of type 'System.ArgumentException' occurred in System.Windows.dll Error: El parámetro es incorrecto. Log:"playMP32() counter 3" INFO: startPlayingAudio could not find mediaPlayer for 71888b14-86fe-4769-95c9-a9bb05d5555b Can anybody reproduce this ? link to bug report: https://issues.apache.org/jira/browse/CB-941

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  • What is the specific advantage of a blade server for virtualisation?

    - by ChrisZZ
    We are planning to implement a VDI Solution. We had some discussions about Blade vs Rack. As we are only planning to implement 75-100 Clients, we calculated, that we would need 2 Servers with Dual 8C Processors - and a shared storage server. This calculation is based on a paper by ORACLE, that says, 12 active virtual machines per core. Now, for buying to servers, a blade does not scale financially. But the Blade has some other advantages: a) The interconnectivity between the blades is super-fast. b) IO Virtualisation Are there other advantages, that we should consider, that would make up for price - and are this advantages so important, that we should think about investing in the blade?

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  • New CentOS/cPanel servers showing high load averages at idle

    - by Jax
    I have taken delivery of two identically specced CentOS/cPanel servers, showing the same behaviour of a resting load average of 1.30, 1.21, 1.16 and yet the CPU is sitting 100% idle. Hardware: Xeon(R) CPU E3-1270 4GB RAM Behavior:- top shows CPU 99.9% idle virtually no disk IO Some command output :- uname -a Linux server.myserver.com 2.6.18-308.4.1.el5PAE #1 SMP Tue Apr 17 17:47:38 EDT 2012 i686 i686 i386 GNU/Linux top top - 10:37:50 up 1:47, 1 user, load average: 1.28, 1.20, 1.17 Tasks: 199 total, 1 running, 198 sleeping, 0 stopped, 0 zombie Cpu(s): 0.0%us, 0.0%sy, 0.0%ni, 99.9%id, 0.1%wa, 0.0%hi, 0.0%si, 0.0%st Mem: 4125104k total, 438764k used, 3686340k free, 25788k buffers Swap: 2096440k total, 0k used, 2096440k free, 291080k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 1 root 15 0 2160 640 552 S 0.0 0.0 0:00.89 init 2 root RT -5 0 0 0 S 0.0 0.0 0:00.00 migration/0 3 root 34 19 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/0 4 root RT -5 0 0 0 S 0.0 0.0 0:00.00 watchdog/0 5 root RT -5 0 0 0 S 0.0 0.0 0:00.00 migration/1 6 root 34 19 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/1 7 root RT -5 0 0 0 S 0.0 0.0 0:00.00 watchdog/1 8 root RT -5 0 0 0 S 0.0 0.0 0:00.00 migration/2 9 root 35 19 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/2 10 root RT -5 0 0 0 S 0.0 0.0 0:00.00 watchdog/2 11 root RT -5 0 0 0 S 0.0 0.0 0:00.00 migration/3 12 root 34 19 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/3 13 root RT -5 0 0 0 S 0.0 0.0 0:00.00 watchdog/3 14 root RT -5 0 0 0 S 0.0 0.0 0:00.00 migration/4 15 root 34 19 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/4 16 root RT -5 0 0 0 S 0.0 0.0 0:00.00 watchdog/4 17 root RT -5 0 0 0 S 0.0 0.0 0:00.00 migration/5 18 root 38 19 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/5 19 root RT -5 0 0 0 S 0.0 0.0 0:00.00 watchdog/5 20 root RT -5 0 0 0 S 0.0 0.0 0:00.00 migration/6 21 root 34 19 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/6 22 root RT -5 0 0 0 S 0.0 0.0 0:00.00 watchdog/6 23 root RT -5 0 0 0 S 0.0 0.0 0:00.00 migration/7 24 root 34 19 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/7 25 root RT -5 0 0 0 S 0.0 0.0 0:00.00 watchdog/7 26 root 10 -5 0 0 0 S 0.0 0.0 0:06.42 events/0 27 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 events/1 28 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 events/2 29 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 events/3 30 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 events/4 31 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 events/5 32 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 events/6 33 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 events/7 34 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 khelper 35 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 kthread 45 root 13 -5 0 0 0 S 0.0 0.0 0:00.00 kblockd/0 46 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 kblockd/1 47 root 14 -5 0 0 0 S 0.0 0.0 0:00.00 kblockd/2 48 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 kblockd/3 49 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 kblockd/4 50 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 kblockd/5 51 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 kblockd/6 52 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 kblockd/7 53 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 kacpid 189 root 11 -5 0 0 0 S 0.0 0.0 0:00.00 cqueue/0 190 root 11 -5 0 0 0 S 0.0 0.0 0:00.00 cqueue/1 191 root 12 -5 0 0 0 S 0.0 0.0 0:00.00 cqueue/2 192 root 12 -5 0 0 0 S 0.0 0.0 0:00.00 cqueue/3 193 root 13 -5 0 0 0 S 0.0 0.0 0:00.00 cqueue/4 194 root 13 -5 0 0 0 S 0.0 0.0 0:00.00 cqueue/5 195 root 14 -5 0 0 0 S 0.0 0.0 0:00.00 cqueue/6 196 root 14 -5 0 0 0 S 0.0 0.0 0:00.00 cqueue/7 199 root 10 -5 0 0 0 S 0.0 0.0 0:00.00 khubd ps axf PID TTY STAT TIME COMMAND 1 ? Ss 0:00 init [3] 2 ? S< 0:00 [migration/0] 3 ? SN 0:00 [ksoftirqd/0] 4 ? S< 0:00 [watchdog/0] 5 ? S< 0:00 [migration/1] 6 ? SN 0:00 [ksoftirqd/1] 7 ? S< 0:00 [watchdog/1] 8 ? S< 0:00 [migration/2] 9 ? SN 0:00 [ksoftirqd/2] 10 ? S< 0:00 [watchdog/2] 11 ? S< 0:00 [migration/3] 12 ? SN 0:00 [ksoftirqd/3] 13 ? S< 0:00 [watchdog/3] 14 ? S< 0:00 [migration/4] 15 ? SN 0:00 [ksoftirqd/4] 16 ? S< 0:00 [watchdog/4] 17 ? S< 0:00 [migration/5] 18 ? SN 0:00 [ksoftirqd/5] 19 ? S< 0:00 [watchdog/5] 20 ? S< 0:00 [migration/6] 21 ? SN 0:00 [ksoftirqd/6] 22 ? S< 0:00 [watchdog/6] 23 ? S< 0:00 [migration/7] 24 ? SN 0:00 [ksoftirqd/7] 25 ? S< 0:00 [watchdog/7] 26 ? S< 0:06 [events/0] 27 ? S< 0:00 [events/1] 28 ? S< 0:00 [events/2] 29 ? S< 0:00 [events/3] 30 ? S< 0:00 [events/4] 31 ? S< 0:00 [events/5] 32 ? S< 0:00 [events/6] 33 ? S< 0:00 [events/7] 34 ? S< 0:00 [khelper] 35 ? S< 0:00 [kthread] 45 ? S< 0:00 \_ [kblockd/0] 46 ? S< 0:00 \_ [kblockd/1] 47 ? S< 0:00 \_ [kblockd/2] 48 ? S< 0:00 \_ [kblockd/3] 49 ? S< 0:00 \_ [kblockd/4] 50 ? S< 0:00 \_ [kblockd/5] 51 ? S< 0:00 \_ [kblockd/6] 52 ? S< 0:00 \_ [kblockd/7] 53 ? S< 0:00 \_ [kacpid] 189 ? S< 0:00 \_ [cqueue/0] 190 ? S< 0:00 \_ [cqueue/1] 191 ? S< 0:00 \_ [cqueue/2] 192 ? S< 0:00 \_ [cqueue/3] 193 ? S< 0:00 \_ [cqueue/4] 194 ? S< 0:00 \_ [cqueue/5] 195 ? S< 0:00 \_ [cqueue/6] 196 ? S< 0:00 \_ [cqueue/7] 199 ? S< 0:00 \_ [khubd] 201 ? S< 0:00 \_ [kseriod] 301 ? S 0:00 \_ [khungtaskd] 302 ? S 0:00 \_ [pdflush] 303 ? S 0:00 \_ [pdflush] 304 ? S< 0:00 \_ [kswapd0] 305 ? S< 0:00 \_ [aio/0] 306 ? S< 0:00 \_ [aio/1] 307 ? S< 0:00 \_ [aio/2] 308 ? S< 0:00 \_ [aio/3] 309 ? S< 0:00 \_ [aio/4] 310 ? S< 0:00 \_ [aio/5] 311 ? S< 0:00 \_ [aio/6] 312 ? S< 0:00 \_ [aio/7] 472 ? S< 0:00 \_ [kpsmoused] 551 ? S< 0:00 \_ [ata/0] 552 ? S< 0:00 \_ [ata/1] 553 ? S< 0:00 \_ [ata/2] 554 ? S< 0:00 \_ [ata/3] 555 ? S< 0:00 \_ [ata/4] 556 ? S< 0:00 \_ [ata/5] 557 ? S< 0:00 \_ [ata/6] 558 ? S< 0:00 \_ [ata/7] 559 ? S< 0:00 \_ [ata_aux] 569 ? S< 0:00 \_ [scsi_eh_0] 570 ? S< 0:00 \_ [scsi_eh_1] 571 ? S< 0:00 \_ [scsi_eh_2] 572 ? S< 0:00 \_ [scsi_eh_3] 573 ? S< 0:00 \_ [scsi_eh_4] 574 ? S< 0:00 \_ [scsi_eh_5] 593 ? S< 0:00 \_ [kstriped] 630 ? S< 0:00 \_ [kjournald] 655 ? S< 0:00 \_ [kauditd] 1860 ? S< 0:00 \_ [kmpathd/0] 1861 ? S< 0:00 \_ [kmpathd/1] 1862 ? S< 0:00 \_ [kmpathd/2] 1863 ? S< 0:00 \_ [kmpathd/3] 1864 ? S< 0:00 \_ [kmpathd/4] 1865 ? S< 0:00 \_ [kmpathd/5] 1866 ? S< 0:00 \_ [kmpathd/6] 1867 ? S< 0:00 \_ [kmpathd/7] 1868 ? S< 0:00 \_ [kmpath_handlerd] 1902 ? S< 0:00 \_ [kjournald] 1904 ? S< 0:00 \_ [kjournald] 1906 ? S< 0:00 \_ [kjournald] 1908 ? S< 0:00 \_ [kjournald] 1910 ? S< 0:00 \_ [kjournald] 2184 ? S< 0:00 \_ [iscsi_eh] 2288 ? S< 0:00 \_ [cnic_wq] 2298 ? S< 0:00 \_ [bnx2i_thread/0] 2299 ? S< 0:00 \_ [bnx2i_thread/1] 2300 ? S< 0:00 \_ [bnx2i_thread/2] 2301 ? S< 0:00 \_ [bnx2i_thread/3] 2302 ? S< 0:00 \_ [bnx2i_thread/4] 2303 ? S< 0:00 \_ [bnx2i_thread/5] 2304 ? S< 0:00 \_ [bnx2i_thread/6] 2305 ? S< 0:00 \_ [bnx2i_thread/7] 2330 ? S< 0:00 \_ [ib_addr] 2359 ? S< 0:00 \_ [ib_mcast] 2360 ? S< 0:00 \_ [ib_inform] 2361 ? S< 0:00 \_ [local_sa] 2371 ? S< 0:00 \_ [iw_cm_wq] 2381 ? S< 0:00 \_ [ib_cm/0] 2382 ? S< 0:00 \_ [ib_cm/1] 2383 ? S< 0:00 \_ [ib_cm/2] 2384 ? S< 0:00 \_ [ib_cm/3] 2385 ? S< 0:00 \_ [ib_cm/4] 2386 ? S< 0:00 \_ [ib_cm/5] 2387 ? S< 0:00 \_ [ib_cm/6] 2388 ? S< 0:00 \_ [ib_cm/7] 2398 ? S< 0:00 \_ [rdma_cm] 2684 ? S< 0:00 \_ [bond0] 2882 ? S< 0:00 \_ [bond1] 3195 ? S< 0:00 \_ [kondemand/0] 3197 ? S< 0:00 \_ [kondemand/1] 3198 ? S< 0:00 \_ [kondemand/2] 3199 ? S< 0:00 \_ [kondemand/3] 3200 ? S< 0:00 \_ [kondemand/4] 3201 ? S< 0:00 \_ [kondemand/5] 3202 ? S< 0:00 \_ [kondemand/6] 3203 ? S< 0:00 \_ [kondemand/7] 688 ? S<s 0:00 /sbin/udevd -d 2425 ? S<Lsl 0:00 iscsiuio 2432 ? Ss 0:00 iscsid 2434 ? S<Ls 0:00 iscsid 3061 ? S<sl 0:00 auditd 3063 ? S<sl 0:00 \_ /sbin/audispd 3121 ? Ss 0:00 syslogd -m 0 3124 ? Ss 0:00 klogd -x 3220 ? Ss 0:00 irqbalance 3278 ? Ss 0:00 dbus-daemon --system 3324 ? Ss 0:00 /usr/sbin/acpid 3337 ? Ss 0:00 hald 3338 ? S 0:00 \_ hald-runner 3345 ? S 0:00 \_ hald-addon-acpi: listening on acpid socket /var/run/acpid.socket 3349 ? S 0:00 \_ hald-addon-keyboard: listening on /dev/input/event1 3360 ? S 0:00 \_ hald-addon-storage: polling /dev/sr0 3413 ? Ssl 0:00 automount 3435 ? Ssl 0:00 /usr/sbin/named -u named 3466 ? Ss 0:00 /usr/sbin/sshd 4072 ? Ss 0:00 \_ sshd: root@pts/0 4078 pts/0 Ss 0:00 \_ -bash 5436 pts/0 R+ 0:00 \_ ps axf 3484 ? Ss 0:00 xinetd -stayalive -pidfile /var/run/xinetd.pid 3500 ? SLs 0:00 ntpd -u ntp:ntp -p /var/run/ntpd.pid -g 3514 ? S 0:00 /bin/sh /usr/bin/mysqld_safe --datadir=/var/lib/mysql --pid-file=/var/lib/mysql/server.myserver.com.pid 3575 ? Sl 0:00 \_ /usr/sbin/mysqld --basedir=/ --datadir=/var/lib/mysql --user=mysql --log-error=/var/lib/mysql/server.myserver.com.err --pid-fil 3687 ? Ss 0:00 /usr/sbin/exim -bd -q1h 3709 ? Ss 0:00 /usr/sbin/dovecot 3710 ? S 0:00 \_ dovecot-auth 3725 ? S 0:00 \_ pop3-login 3726 ? S 0:00 \_ pop3-login 3727 ? S 0:00 \_ imap-login 3728 ? S 0:00 \_ imap-login 3729 ? Ss 0:00 /usr/local/apache/bin/httpd -k start -DSSL 4326 ? S 0:00 \_ /usr/bin/perl /usr/local/cpanel/bin/leechprotect 4332 ? S 0:00 \_ /usr/local/apache/bin/httpd -k start -DSSL 4333 ? S 0:00 \_ /usr/local/apache/bin/httpd -k start -DSSL 4334 ? S 0:00 \_ /usr/local/apache/bin/httpd -k start -DSSL 4335 ? S 0:00 \_ /usr/local/apache/bin/httpd -k start -DSSL 4336 ? S 0:00 \_ /usr/local/apache/bin/httpd -k start -DSSL 4337 ? S 0:00 \_ /usr/local/apache/bin/httpd -k start -DSSL 4382 ? S 0:00 \_ /usr/local/apache/bin/httpd -k start -DSSL 4383 ? S 0:00 \_ /usr/local/apache/bin/httpd -k start -DSSL 4384 ? S 0:00 \_ /usr/local/apache/bin/httpd -k start -DSSL 5389 ? S 0:00 \_ /usr/local/apache/bin/httpd -k start -DSSL 5390 ? S 0:00 \_ /usr/local/apache/bin/httpd -k start -DSSL 3741 ? Ss 0:00 pure-ftpd (SERVER) 3746 ? S 0:00 /usr/sbin/pure-authd -s /var/run/ftpd.sock -r /usr/sbin/pureauth 3759 ? Ss 0:00 crond 3772 ? Ss 0:00 /usr/sbin/atd 3909 ? S 0:00 cpsrvd (SSL) - waiting for connections 5435 ? Z 0:00 \_ [cpsrvd-ssl] <defunct> 3931 ? S 0:00 queueprocd - wait to process a task 3948 ? S 0:00 tailwatchd 3954 ? SN 0:00 cpanellogd - sleeping for logs 4003 ? Ss 0:00 ./nimbus /opt/nimsoft 4016 ? S 0:00 \_ nimbus(controller) 4053 ? Sl 0:00 \_ nimbus(spooler) 4066 ? S 0:00 \_ nimbus(hdb) 4069 ? S 0:00 \_ nimbus(cdm) 4070 ? S 0:00 \_ nimbus(processes) 4023 ? S 0:00 /usr/sbin/smartd -q never 4027 tty1 Ss+ 0:00 /sbin/mingetty tty1 4028 tty2 Ss+ 0:00 /sbin/mingetty tty2 4029 tty3 Ss+ 0:00 /sbin/mingetty tty3 4030 tty4 Ss+ 0:00 /sbin/mingetty tty4 4031 tty5 Ss+ 0:00 /sbin/mingetty tty5 4033 tty6 Ss+ 0:00 /sbin/mingetty tty6 4035 ttyS1 Ss+ 0:00 /sbin/agetty -h -L ttyS1 19200 vt100 vmstat 10 6 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 3718136 25684 257424 0 0 8 3 127 189 0 0 100 0 0 0 0 0 3718136 25700 257420 0 0 0 7 1013 1500 0 0 100 0 0 0 0 0 3718136 25700 257424 0 0 0 1 1013 1551 0 0 100 0 0 0 0 0 3718136 25700 257424 0 0 0 0 1012 1469 0 0 100 0 0 1 0 0 3712680 25716 257424 0 0 0 2 1013 1542 0 0 100 0 0 0 0 0 3718376 25740 257424 0 0 0 46 1017 1534 0 0 100 0 0 Can anyone advise me as to what is the cause of and how I may resolve this behaviour? A kernel/driver conflict perhaps? I don't see any processes in R or D state that might inflate the load averages artificially, I realise it may be considered low in an 8 thread system but its higher at idle than any normal behaviour I've previously come across. Thanks in advance for your time. Edit: iotop Total DISK READ: 0.00 B/s | Total DISK WRITE: 0.00 B/s TID PRIO USER DISK READ DISK WRITE SWAPIN IO> COMMAND 26 be/3 root 0.00 B/s 0.00 B/s 0.00 % 0.29 % [events/0] 3205 be/3 root 0.00 B/s 0.00 B/s 0.00 % 0.10 % [kondemand/2] 3208 be/3 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [kondemand/5] 3209 be/3 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [kondemand/6] 3207 be/3 root 0.00 B/s 0.00 B/s 0.10 % 0.00 % [kondemand/4] 3210 be/3 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [kondemand/7] 3227 be/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % irqbalance 3288 be/3 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [rpciod/1] 3287 be/3 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [rpciod/0] 3206 be/3 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [kondemand/3] 3069 be/3 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % auditd 3070 be/2 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % audispd 655 be/3 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [kauditd] 3619 be/4 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % automount 3 be/7 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [ksoftirqd/0] 3068 be/3 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % auditd 29 be/3 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [events/3] 4 rt/3 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [watchdog/0] 7 rt/3 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [watchdog/1] 10 rt/3 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [watchdog/2] 13 rt/3 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [watchdog/3] 16 rt/3 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [watchdog/4] 19 rt/3 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [watchdog/5] 22 rt/3 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [watchdog/6] 25 rt/3 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [watchdog/7] 27 be/3 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [events/1] 28 be/3 root 0.00 B/s 0.00 B/s 0.29 % 0.00 % [events/2] 30 be/3 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [events/4] 31 be/3 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [events/5] 32 be/3 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [events/6] 33 be/3 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [events/7] 34 be/3 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [khelper] 35 be/3 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [kthread] 45 be/3 root 0.00 B/s 0.00 B/s 0.00 % 0.00 % [kblockd/0]

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  • Windows 8.1 Professional Hyper-V - can I create my own linux VM through it?

    - by KevinM1
    I have a Windows 8.1 Professional desktop, and would like to have a Linux Mint VM on it so I can do some opensource web development work. I've tried VirtualBox, but it's giving me an IO error during the Mint .iso installation. VMWare Player flat out tells me it can't install because I have Hyper-V on my machine by default. My biggest concern is nuking the desktop, which is where I do most of my non-development work/browsing/etc. The desktop seems to be listed as a VM itself in the Hyper-V Manager, and I don't want to accidentally break it. So, two questions: Can I create the Mint VM I want/need for my work? Can I do it without messing up the desktop?

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  • cygwin rsync over ssh very slow

    - by Waleed Hamra
    I have 2 machines running Windows Xp SP3. I have cygwin installed on both, version 1.7. I have rsync and ssh installed on both, and configured using default settings as per ssh-host-config and ssh-user-config programs provided. I moved the public keys into their respective locations, and basically ssh is working fine. i began an rsync operation, using: rsync -av --delete --hard-links local_dir username@other_machine:/some_dir well... on both machines, the processor is running near idle, no heavy usage. I checked IO using process explorer on both machines, and that too is at normal levels (1~2 MB/s), so I can't see where the bottlenecks are, because network performance is aweful. I'm not going over 1MB/s... when a normal file copy using windows sharing achieves some ~10 MB/s.. What could be wrong?

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  • How to share my localhost over the internet?

    - by Loolooii
    I really want to share my localhost over the internet to show my friends the progress of the website we're working on, so that I don't need to upload it to the public server each time I make a change. showoff.io is not free and localtunnel gives me "failed to authenticate" when trying to upload my public key (a lot of people seem to have this problem and there doesn't seem to be a solution for this). Does anyone know any other free service I can use or any other solution at all? I'm using a Mac. Thanks. UPDATE: with localhost I mean a web server running on my computer, I have a dynamic IP address and no I'm not behind a router (just using a wireless modem).

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  • What hardware factors may be considered bottlenecks on a Hyper-V virtual server during load testing?

    - by sean
    Our organization is load testing our application using virtual servers via Hyper-V to see what the user load can be using fair equipment on a single box setup. The developer group questioned the validity of the tests given the normal use of the box by the other virtual machines. IT admins answered that it is an acceptable platform to load test on because it has its own CPUs, memory and disks allocated. Is their answer mostly correct? What hardware factors may be considered bottle necks given the other virtual machines when testing our application? For example, would bus speed be a concern or network IO? The application consists of a windows service written using the 4.0 .NET Framework and SQL Server 2008 R2.

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  • Colored blocks on boot

    - by stackzerad
    When my laptop tries to boot right after POST I see colored blocks with flashing symbols in them. I am able to boot from windows PE cd. Tried fixboot and fixmbr with no success. I have also tried replacing boot files (ntldr, io.sys etc..) and removing video card drivers from windows\system32\drivers. The drive is seagate 2.5 ATA 160GB and has one NTFS partition on it. I have already fixed this issue by reformating the drive and reinstalling everything but after couple of weeks I get the same issue again. The diagnostics software shows no bad sectors on it and virus scan didn't find anything. Does anybody have an idea what this might be? UPDATE: tried defragmenting the hard drive just in case, but still no luck

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  • High Lock Wait ratio in MySQL

    - by FunkyChicken
    on my site I log every pageview (date,ip,referrer,page,etc) in a simple mysql table. This table gets very little selects (3 per minute), but a lot of inserts. (about 100 per second) Today I changed this table from an InnoDB table to a MEMORY table, this made sense to me to prevent unnecessary hard disk IO. I also prune this table once per minute, to make sure it never get's too big. -- Performance wise, things are running fine. But I noticed that while running tuning-primer, that my Current Lock Wait ratio is quite high. Current Lock Wait ratio = 1 : 561 My question: Should I worry about this Lock Wait Ratio? And is there something I can change in my my.cnf to improve things so that the lock wait ratio isn't so high?

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  • monitoring load on AWS EC2

    - by hortitude
    I'm interesting in monitoring our EC2 instances to ensure we scale up when necessary. Right now we are monitoring idle CPU time as our metric. We aren't measuring disk IO as we are not a very disk intensive application. When running on our own hardware in a datacenter I also usually monitor "load" from the top command. My question is: Does it make sense to monitor "load" on a shared env such as EC2? If so, how do you interpret the results?

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  • Lost Page Write I/O Errors on CentOS LVM setup

    - by Gregg Leventhal
    I have a CentOS 6 box with LVM setup and one of the PVs is a USB disk (I know). One of them is getting the error: Oct 30 10:57:07 alpha01 kernel: lost page write due to I/O error on dm-3 Oct 30 10:57:07 alpha01 kernel: Buffer I/O error on device dm-3, logical block 4 Which is causing problems with all of the LVs on it. pvs shows the PV as unknown device. I can ls to the logical volumes and they show up in lvdisplay, but first I get a bunch of IO errors. I made sure the cables are secure between the USB drive. What should I do to get this back up and running for the meanwhile? Should I unmount each LV and run an fsck.ext4 on each one like fsck.ext4 -y /dev/vg1/lv_logvolname ?

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  • 250k connections for comet with node.js

    - by Nenad
    How to implement node.js to be able to handle 250k connections as comet server (client side we use socket.io)? Would the use of nginx as proxy/loadbalancer be the right solution? Or will HA-Proxy be the better way? Has anyone real world experience with 100k+ connections and can share his setup? Would a setup like this be the right one (Quad core CPU per server - start 4 Instances of node.js per Server?): nginx (as proxy / load balancing server) / | \ / | \ / | \ / | \ node server #1 node server #2 node server #3 4 instances 4 instances 4 instances

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  • Perl MiniWebserver

    - by snikolov
    hey guys i have config this miniwebserver, however i require the server to download a file in the local directory i am getting a problem can you please fix my issue thanks !/usr/bin/perl use strict; use Socket; use IO::Socket; my $buffer; my $file; my $length; my $output; Simple web server in Perl Serves out .html files, echos form data sub parse_form { my $data = $_[0]; my %data; foreach (split /&/, $data) { my ($key, $val) = split /=/; $val =~ s/+/ /g; $val =~ s/%(..)/chr(hex($1))/eg; $data{$key} = $val;} return %data; } Setup and create socket my $port = shift; defined($port) or die "Usage: $0 portno\n"; my $DOCUMENT_ROOT = $ENV{'HOME'} . "public"; my $server = new IO::Socket::INET(Proto = 'tcp', LocalPort = $port, Listen = SOMAXCONN, Reuse = 1); $server or die "Unable to create server socket: $!" ; Await requests and handle them as they arrive while (my $client = $server-accept()) { $client-autoflush(1); my %request = (); my %data; { -------- Read Request --------------- local $/ = Socket::CRLF; while (<$client>) { chomp; # Main http request if (/\s*(\w+)\s*([^\s]+)\s*HTTP\/(\d.\d)/) { $request{METHOD} = uc $1; $request{URL} = $2; $request{HTTP_VERSION} = $3; } # Standard headers elsif (/:/) { (my $type, my $val) = split /:/, $_, 2; $type =~ s/^\s+//; foreach ($type, $val) { s/^\s+//; s/\s+$//; } $request{lc $type} = $val; } # POST data elsif (/^$/) { read($client, $request{CONTENT}, $request{'content-length'}) if defined $request{'content-length'}; last; } } } -------- SORT OUT METHOD --------------- if ($request{METHOD} eq 'GET') { if ($request{URL} =~ /(.*)\?(.*)/) { $request{URL} = $1; $request{CONTENT} = $2; %data = parse_form($request{CONTENT}); } else { %data = (); } $data{"_method"} = "GET"; } elsif ($request{METHOD} eq 'POST') { %data = parse_form($request{CONTENT}); $data{"_method"} = "POST"; } else { $data{"_method"} = "ERROR"; } ------- Serve file ---------------------- my $localfile = $DOCUMENT_ROOT.$request{URL}; Send Response if (open(FILE, "<$localfile")) { print $client "HTTP/1.0 200 OK", Socket::CRLF; print $client "Content-type: text/html", Socket::CRLF; print $client Socket::CRLF; my $buffer; while (read(FILE, $buffer, 4096)) { print $client $buffer; } $data{"_status"} = "200"; } else { $file = 'a.pl'; open(INFILE, $file); while (<INFILE>) { $output .= $_; ##output of the file } $length = length($output); print $client "'HTTP/1.0 200 OK", Socket::CRLF; print $client "Content-type: application/octet-stream", Socket::CRLF; print $client "Content-Length:".$length, Socket::CRLF; print $client "Accept-Ranges: bytes", Socket::CRLF; print $client 'Content-Disposition: attachment; filename="test.zip"', Socket::CRLF; print $client $output, Socket::CRLF; print $client 'Content-Transfer-Encoding: binary"', Socket::CRLF; print $client "Connection: Keep-Alive", Socket::CRLF; # #$data{"_status"} = "404"; # } close(FILE); Log Request print ($DOCUMENT_ROOT.$request{URL},"\n"); foreach (keys(%data)) { print (" $_ = $data{$_}\n"); } ----------- Close Connection and loop ------------------ close $client; } END

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  • Am I using too much memory? (Rails on EC2 with Resque)

    - by Stpn
    I am looking at the memory usage of the Rails application (it uses background processes via Resque) and since the common answer to the question, "how many workers is too many" was "test and see", I ran some memory commands and wonder if someone can help figuring if the memory usage is high enough already, or I can still add some extra workers.. so (this is all under the maximum load): $ free -t -m total used free shared buffers cached Mem: 1756 1532 223 0 12 229 -/+ buffers/cache: 1291 464 Swap: 895 10 885 Total: 2652 1543 1108 $ vmstat procs -----------memory---------- ---swap-- -----io---- -system-- ----cpu---- r b swpd free buff cache si so bi bo in cs us sy id wa 0 0 10588 156172 13400 326476 1 6 4 0 5 4 1 0 99 0 If there is any extra info I can provide to help answer this, I would be happy to do so. If the question is strange in some way, please let me know I'd be glad to fix etc..

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  • ScrollPanel in java does not appear JTextarea resizes instead

    - by Casper Marcussen
    Hello everyone My program is finished, but testing it out, i found out that the scrollpanel does not appear, it just resizes the JTextarea instead. The code is provided below: package javaapplication15; import java.awt.Container; import java.awt.FlowLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.io.*; import java.io.IOException; import javax.swing.*; public class Tekstprogram extends JFrame { public Tekstprogram() { setSize(400, 600); setDefaultCloseOperation(EXIT_ON_CLOSE); setResizable(false); Container Indhold = getContentPane(); Indhold.setLayout(new FlowLayout()); JButton openButton = new JButton("Open"); JButton saveButton = new JButton("Save"); final JLabel statusbar = new JLabel("Output of your selection will go here"); final JTextArea TekstOmråde = new JTextArea(29, 30); JScrollPane scrollText = new JScrollPane(TekstOmråde); openButton.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent ae) { JFileChooser chooser = new JFileChooser(); chooser.setMultiSelectionEnabled(true); int option = chooser.showOpenDialog(Tekstprogram.this); if (option == JFileChooser.APPROVE_OPTION) { File[] sf = chooser.getSelectedFiles(); String filelist = "nothing"; if (sf.length > 0) { filelist = sf[0].getName(); } for (int i = 1; i < sf.length; i++) { filelist = filelist + ", " + sf[i].getName(); } try { String strLine; File selectedFile = chooser.getSelectedFile(); FileInputStream in = new FileInputStream(selectedFile); BufferedReader br = new BufferedReader(new InputStreamReader(in)); while ((strLine = br.readLine()) != null) { TekstOmråde.append(strLine + "\n"); } } catch (Exception e) { System.out.println("En fejl opstod ved" + e); } } } }); saveButton.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent ae) { JFileChooser chooser = new JFileChooser(); int option = chooser.showSaveDialog(Tekstprogram.this); if (option == JFileChooser.APPROVE_OPTION) { File file = chooser.getSelectedFile(); try { BufferedWriter out = new BufferedWriter(new FileWriter(file)); out.write(TekstOmråde.getText()); out.close(); } catch (IOException e) { System.out.println("IOException fejl opstod :"); e.printStackTrace(); } } } }); Indhold.add(openButton); Indhold.add(saveButton); Indhold.add(TekstOmråde); Indhold.add(scrollText); Indhold.add(statusbar); } public static void main(String args[]) { Tekstprogram sfc = new Tekstprogram(); sfc.setVisible(true); } } Is there anyway to make the JTexarea static?

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  • Eclipse: Help with EGit

    - by someguy
    I want to be able to use a version control system. Although Eclipse comes with CVS, I think it's better that I use a distributed version control system, such as GIT. I was pretty much sold after reading this article. Anyway, I installed EGit and followed this guide on how to set it up. However, I ran in to a few problems: Adding .project and .classpath inside .gitignore did not seem to work. When I try to open a committed file, it throws an error, saying: "IO error reading Git blob [...]" What am I doing wrong? If more information is needed, please specify and I will give.

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  • linux + automated rsync command

    - by Diana
    my target is to copy /tmp/my_file from 10.10.10.1 to my Linux machine without login and password , I set the passwords file with the right password - secret123 so rsync should work , please advice why I get Permission denied. Remark - 10.10.10.1 address is linux machine version – red hat 5.3 rsync -WavH --password-file=/tmp/passwords --progress [email protected]:/tmp/my_file . Permission denied. rsync: connection unexpectedly closed (0 bytes read so far) rsync error: error in rsync protocol data stream (code 12) at io.c(165) more /tmp/passwords secret123 ls -ltr passwords -rwxr-xr-x 1 root root 10 Sep 12 17:32 passwords

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