Re: [xmlblaster] dead lock
Hi Xavier, the dead lock is now fixed, the code is available with svn. thanks for reporting, Marcel Xavier Roques wrote: Hi, I'm using Xmlblaster 1.6. I restarted, some connected clients and unfortunately one of my client never connects back :( Even if I restart several times this client, it never successes to connect. That's why I dumped the threads' stack on the server side and I found the following dead lock (see below) Is there a way to avoid it ? Thanks, Xavier. XmlBlaster.ssl_socket.SSL.tcpListener-alouettebench17-agent: INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchManager.getConnectionStatusListener s(DispatchManager.java:206) INFO | jvm 1| 2007/09/25 11:31:29 | - waiting to lock 0xdb74d9c0 (a org.xmlBlaster.util.dispatch.DispatchManager) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchManager.toAlive(DispatchManager.jav a:293) INFO | jvm 1| 2007/09/25 11:31:29 | - locked 0xdb7a0930 (a java.lang.Object) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchConnectionsHandler.updateState(Disp atchConnectionsHandler.java:332) INFO | jvm 1| 2007/09/25 11:31:29 | - locked 0xdb7a0f28 (a java.util.ArrayList) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchConnectionsHandler.toAlive(Dispatch ConnectionsHandler.java:302) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchConnection.handleTransition(Dispatc hConnection.java:575) INFO | jvm 1| 2007/09/25 11:31:29 | - locked 0xdb7b2838 (a org.xmlBlaster.engine.dispatch.CbDispatchConnection) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchConnection.initialize(DispatchConne ction.java:132) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchConnectionsHandler.initialize(Dispa tchConnectionsHandler.java:179) INFO | jvm 1| 2007/09/25 11:31:29 | - locked 0xdb7a0f28 (a java.util.ArrayList) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchManager.updateProperty(DispatchMana ger.java:160) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.authentication.SessionInfo.updateConnectQos(SessionInfo.j ava:513) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.authentication.Authenticate.connect(Authenticate.java:276 ) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.authentication.AuthenticateProtector.connect(Authenticate Protector.java:74) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.authentication.AuthenticateProtector.connect(Authenticate Protector.java:62) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.protocol.socket.HandleClient.handleMessage(HandleClient.j ava:266) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.protocol.socket.HandleClient$1.run(HandleClient.java:379) INFO | jvm 1| 2007/09/25 11:31:29 | at edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker .runTask(ThreadPoolExecutor.java:665) INFO | jvm 1| 2007/09/25 11:31:29 | at edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker .run(ThreadPoolExecutor.java:690) INFO | jvm 1| 2007/09/25 11:31:29 | at java.lang.Thread.run(Thread.java:619) INFO | jvm 1| 2007/09/25 11:31:29 | XmlBlaster.PingTimer: INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchConnectionsHandler.shutdown(Dispatc hConnectionsHandler.java:486) INFO | jvm 1| 2007/09/25 11:31:29 | - waiting to lock 0xdb7a0f28 (a java.util.ArrayList) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchManager.shutdown(DispatchManager.ja va:954) INFO | jvm 1| 2007/09/25 11:31:29 | - locked 0xdb74d9c0 (a org.xmlBlaster.util.dispatch.DispatchManager) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchManager.givingUpDelivery(DispatchMa nager.java:364) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchManager.toDead(DispatchManager.java :356) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchConnectionsHandler.updateState(Disp atchConnectionsHandler.java:348) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchConnectionsHandler.toDead(DispatchC onnectionsHandler.java:315) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchConnection.handleTransition(Dispatc hConnection.java:632) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchConnection.ping(DispatchConnection. java:359) INFO | jvm 1| 2007/09/25 11:31:29 | at
RE: [xmlblaster] dead lock
Hi Marcel, Thanks a lot for this very quick fix. Xavier. -Original Message- From: [EMAIL PROTECTED] [mailto:owner- [EMAIL PROTECTED] On Behalf Of Marcel Ruff Sent: mercredi 26 septembre 2007 13:03 To: xmlblaster@server.xmlBlaster.org Subject: Re: [xmlblaster] dead lock Hi Xavier, the dead lock is now fixed, the code is available with svn. thanks for reporting, Marcel Xavier Roques wrote: Hi, I'm using Xmlblaster 1.6. I restarted, some connected clients and unfortunately one of my client never connects back :( Even if I restart several times this client, it never successes to connect. That's why I dumped the threads' stack on the server side and I found the following dead lock (see below) Is there a way to avoid it ? Thanks, Xavier. XmlBlaster.ssl_socket.SSL.tcpListener-alouettebench17-agent: INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchManager.getConnectionStatusListener s(DispatchManager.java:206) INFO | jvm 1| 2007/09/25 11:31:29 | - waiting to lock 0xdb74d9c0 (a org.xmlBlaster.util.dispatch.DispatchManager) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchManager.toAlive(DispatchManager.jav a:293) INFO | jvm 1| 2007/09/25 11:31:29 | - locked 0xdb7a0930 (a java.lang.Object) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchConnectionsHandler.updateState(Disp atchConnectionsHandler.java:332) INFO | jvm 1| 2007/09/25 11:31:29 | - locked 0xdb7a0f28 (a java.util.ArrayList) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchConnectionsHandler.toAlive(Dispatch ConnectionsHandler.java:302) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchConnection.handleTransition(Dispatc hConnection.java:575) INFO | jvm 1| 2007/09/25 11:31:29 | - locked 0xdb7b2838 (a org.xmlBlaster.engine.dispatch.CbDispatchConnection) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchConnection.initialize(DispatchConne ction.java:132) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchConnectionsHandler.initialize(Dispa tchConnectionsHandler.java:179) INFO | jvm 1| 2007/09/25 11:31:29 | - locked 0xdb7a0f28 (a java.util.ArrayList) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchManager.updateProperty(DispatchMana ger.java:160) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.authentication.SessionInfo.updateConnectQos(SessionInfo.j ava:513) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.authentication.Authenticate.connect(Authenticate.java:276 ) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.authentication.AuthenticateProtector.connect(Authenticate Protector.java:74) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.authentication.AuthenticateProtector.connect(Authenticate Protector.java:62) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.protocol.socket.HandleClient.handleMessage(HandleClient.j ava:266) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.protocol.socket.HandleClient$1.run(HandleClient.java:379) INFO | jvm 1| 2007/09/25 11:31:29 | at edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker .runTask(ThreadPoolExecutor.java:665) INFO | jvm 1| 2007/09/25 11:31:29 | at edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker .run(ThreadPoolExecutor.java:690) INFO | jvm 1| 2007/09/25 11:31:29 | at java.lang.Thread.run(Thread.java:619) INFO | jvm 1| 2007/09/25 11:31:29 | XmlBlaster.PingTimer: INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchConnectionsHandler.shutdown(Dispatc hConnectionsHandler.java:486) INFO | jvm 1| 2007/09/25 11:31:29 | - waiting to lock 0xdb7a0f28 (a java.util.ArrayList) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchManager.shutdown(DispatchManager.ja va:954) INFO | jvm 1| 2007/09/25 11:31:29 | - locked 0xdb74d9c0 (a org.xmlBlaster.util.dispatch.DispatchManager) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchManager.givingUpDelivery(DispatchMa nager.java:364) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchManager.toDead(DispatchManager.java :356) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchConnectionsHandler.updateState(Disp atchConnectionsHandler.java:348) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchConnectionsHandler.toDead(DispatchC onnectionsHandler.java:315) INFO | jvm 1|
Re: [xmlblaster] dead lock
Can you tell me a little more about the conditions that caused the dead lock? We are experiencing a problem that may be related (although it may be just my wacky code). Any additional information would be helpful. David Robison _ From: Marcel Ruff [mailto:[EMAIL PROTECTED] To: xmlblaster@server.xmlBlaster.org Sent: Wed, 26 Sep 2007 07:03:15 -0400 Subject: Re: [xmlblaster] dead lock Hi Xavier, the dead lock is now fixed, the code is available with svn. thanks for reporting, Marcel Xavier Roques wrote: Hi, I'm using Xmlblaster 1.6. I restarted, some connected clients and unfortunately one of my client never connects back :( Even if I restart several times this client, it never successes to connect. That's why I dumped the threads' stack on the server side and I found the following dead lock (see below) Is there a way to avoid it ? Thanks, Xavier. XmlBlaster.ssl_socket.SSL.tcpListener-alouettebench17-agent: INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchManager.getConnectionStatusListener s(DispatchManager.java:206) INFO | jvm 1| 2007/09/25 11:31:29 | - waiting to lock 0xdb74d9c0 (a org.xmlBlaster.util.dispatch.DispatchManager) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchManager.toAlive(DispatchManager.jav a:293) INFO | jvm 1| 2007/09/25 11:31:29 | - locked 0xdb7a0930 (a java.lang.Object) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchConnectionsHandler.updateState(Disp atchConnectionsHandler.java:332) INFO | jvm 1| 2007/09/25 11:31:29 | - locked 0xdb7a0f28 (a java.util.ArrayList) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchConnectionsHandler.toAlive(Dispatch ConnectionsHandler.java:302) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchConnection.handleTransition(Dispatc hConnection.java:575) INFO | jvm 1| 2007/09/25 11:31:29 | - locked 0xdb7b2838 (a org.xmlBlaster.engine.dispatch.CbDispatchConnection) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchConnection.initialize(DispatchConne ction.java:132) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchConnectionsHandler.initialize(Dispa tchConnectionsHandler.java:179) INFO | jvm 1| 2007/09/25 11:31:29 | - locked 0xdb7a0f28 (a java.util.ArrayList) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchManager.updateProperty(DispatchMana ger.java:160) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.authentication.SessionInfo.updateConnectQos(SessionInfo.j ava:513) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.authentication.Authenticate.connect(Authenticate.java:276 ) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.authentication.AuthenticateProtector.connect(Authenticate Protector.java:74) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.authentication.AuthenticateProtector.connect(Authenticate Protector.java:62) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.protocol.socket.HandleClient.handleMessage(HandleClient.j ava:266) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.protocol.socket.HandleClient$1.run(HandleClient.java:379) INFO | jvm 1| 2007/09/25 11:31:29 | at edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker .runTask(ThreadPoolExecutor.java:665) INFO | jvm 1| 2007/09/25 11:31:29 | at edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker .run(ThreadPoolExecutor.java:690) INFO | jvm 1| 2007/09/25 11:31:29 | at java.lang.Thread.run(Thread.java:619) INFO | jvm 1| 2007/09/25 11:31:29 | XmlBlaster.PingTimer: INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchConnectionsHandler.shutdown(Dispatc hConnectionsHandler.java:486) INFO | jvm 1| 2007/09/25 11:31:29 | - waiting to lock 0xdb7a0f28 (a java.util.ArrayList) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchManager.shutdown(DispatchManager.ja va:954) INFO | jvm 1| 2007/09/25 11:31:29 | - locked 0xdb74d9c0 (a org.xmlBlaster.util.dispatch.DispatchManager) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchManager.givingUpDelivery(DispatchMa nager.java:364) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchManager.toDead(DispatchManager.java :356) INFO | jvm 1| 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchConnectionsHandler.updateState(Disp
RE: [xmlblaster] dead lock
Hi David, When the dead lock occurred, I have one server with 144 connected clients. All my clients are configured in fail safe mode and all the messages are stored in RAM, the configuration of all my agents is: #server configuration dispatch/callback/retries=0 dispatch/callback/delay=2000 dispatch/callback/pingInterval=2000 dispatch/callback/plugin/socket_ssl/multiThreaded=false #client configuration pingInterval=2000 retries=-1 delay=2000 The problem occurred after having restarted 30 of the agents running on the same box. I hope it may help, Xavier. From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of David Robison Sent: mercredi 26 septembre 2007 14:46 To: xmlblaster@server.xmlBlaster.org Subject: Re: [xmlblaster] dead lock Can you tell me a little more about the conditions that caused the dead lock? We are experiencing a problem that may be related (although it may be just my wacky code). Any additional information would be helpful. David Robison From: Marcel Ruff [mailto:[EMAIL PROTECTED] To: xmlblaster@server.xmlBlaster.org Sent: Wed, 26 Sep 2007 07:03:15 -0400 Subject: Re: [xmlblaster] dead lock Hi Xavier, the dead lock is now fixed, the code is available with svn. thanks for reporting, Marcel Xavier Roques wrote: Hi, I'm using Xmlblaster 1.6. I restarted, some connected clients and unfortunately one of my client never connects back :( Even if I restart several times this client, it never successes to connect. That's why I dumped the threads' stack on the server side and I found the following dead lock (see below) Is there a way to avoid it ? Thanks, Xavier. XmlBlaster.ssl_socket.SSL.tcpListener-alouettebench17-agent: INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchManager.getConnectionStatusListener s(DispatchManager.java:206) INFO | jvm 1 | 2007/09/25 11:31:29 | - waiting to lock 0xdb74d9c0 (a org.xmlBlaster.util.dispatch.DispatchManager) INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchManager.toAlive(DispatchManager.jav a:293) INFO | jvm 1 | 2007/09/25 11:31:29 | - locked 0xdb7a0930 (a java.lang.Object) INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchConnectionsHandler.updateState(Disp atchConnectionsHandler.java:332) INFO | jvm 1 | 2007/09/25 11:31:29 | - locked 0xdb7a0f28 (a java.util.ArrayList) INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchConnectionsHandler.toAlive(Dispatch ConnectionsHandler.java:302) INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchConnection.handleTransition(Dispatc hConnection.java:575) INFO | jvm 1 | 2007/09/25 11:31:29 | - locked 0xdb7b2838 (a org.xmlBlaster.engine.dispatch.CbDispatchConnection) INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchConnection.initialize(DispatchConne ction.java:132) INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchConnectionsHandler.initialize(Dispa tchConnectionsHandler.java:179) INFO | jvm 1 | 2007/09/25 11:31:29 | - locked 0xdb7a0f28 (a java.util.ArrayList) INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchManager.updateProperty(DispatchMana ger.java:160) INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.authentication.SessionInfo.updateConnectQos(SessionInfo.j ava:513) INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.authentication.Authenticate.connect(Authenticate.java:276 ) INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.authentication.AuthenticateProtector.connect(Authenticate Protector.java:74) INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.authentication.AuthenticateProtector.connect(Authenticate Protector.java:62) INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.protocol.socket.HandleClient.handleMessage(HandleClient.j ava:266) INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.protocol.socket.HandleClient$1.run(HandleClient.java:379) INFO | jvm 1 | 2007/09/25 11:31:29 | at edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker .runTask(ThreadPoolExecutor.java:665) INFO | jvm 1 | 2007/09/25 11:31:29 | at edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker .run(ThreadPoolExecutor.java:690) INFO | jvm 1 | 2007/09/25 11:31:29 | at java.lang.Thread.run(Thread.java:619) INFO | jvm 1 | 2007/09/25 11:31:29 | XmlBlaster.PingTimer: INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchConnectionsHandler.shutdown(Dispatc hConnectionsHandler.java:486) INFO | jvm 1 | 2007/09/25 11:31:29 | - waiting to lock 0xdb7a0f28 (a java.util.ArrayList) INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchManager.shutdown(DispatchManager.ja va:954) INFO | jvm 1 | 2007/09/25 11:31:29 | - locked 0xdb74d9c0 (a
Re: [xmlblaster] dead lock
David Robison wrote: Can you tell me a little more about the conditions that caused the dead lock? We are experiencing a problem that may be related (although it may be just my wacky code). Any additional information would be helpful. This happens when: 1. No fail safe client connection (pubSessionId 0) (Xavier, is this correct?) 2. Client is reconnecting 3. At the same time xmlBlaster's callback ping thread detects the lost client and wants to clean up regards Marcel David Robison *From:* Marcel Ruff [mailto:[EMAIL PROTECTED] *To:* xmlblaster@server.xmlBlaster.org *Sent:* Wed, 26 Sep 2007 07:03:15 -0400 *Subject:* Re: [xmlblaster] dead lock Hi Xavier, the dead lock is now fixed, the code is available with svn. thanks for reporting, Marcel Xavier Roques wrote: Hi, I'm using Xmlblaster 1.6. I restarted, some connected clients and unfortunately one of my client never connects back :( Even if I restart several times this client, it never successes to connect. That's why I dumped the threads' stack on the server side and I found the following dead lock (see below) Is there a way to avoid it ? Thanks, Xavier. XmlBlaster.ssl_socket.SSL.tcpListener-alouettebench17-agent: INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchManager.getConnectionStatusListener s(DispatchManager.java:206) INFO | jvm 1 | 2007/09/25 11:31:29 | - waiting to lock 0xdb74d9c0 (a org.xmlBlaster.util.dispatch.DispatchManager) INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchManager.toAlive(DispatchManager.jav a:293) INFO | jvm 1 | 2007/09/25 11:31:29 | - locked 0xdb7a0930 (a java.lang.Object) INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchConnectionsHandler.updateState(Disp atchConnectionsHandler.java:332) INFO | jvm 1 | 2007/09/25 11:31:29 | - locked 0xdb7a0f28 (a java.util.ArrayList) INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchConnectionsHandler.toAlive(Dispatch ConnectionsHandler.java:302) INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchConnection.handleTransition(Dispatc hConnection.java:575) INFO | jvm 1 | 2007/09/25 11:31:29 | - locked 0xdb7b2838 (a org.xmlBlaster.engine.dispatch.CbDispatchConnection) INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchConnection.initialize(DispatchConne ction.java:132) INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchConnectionsHandler.initialize(Dispa tchConnectionsHandler.java:179) INFO | jvm 1 | 2007/09/25 11:31:29 | - locked 0xdb7a0f28 (a java.util.ArrayList) INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchManager.updateProperty(DispatchMana ger.java:160) INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.authentication.SessionInfo.updateConnectQos(SessionInfo.j ava:513) INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.authentication.Authenticate.connect(Authenticate.java:276 ) INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.authentication.AuthenticateProtector.connect(Authenticate Protector.java:74) INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.authentication.AuthenticateProtector.connect(Authenticate Protector.java:62) INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.protocol.socket.HandleClient.handleMessage(HandleClient.j ava:266) INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.protocol.socket.HandleClient$1.run(HandleClient.java:379) INFO | jvm 1 | 2007/09/25 11:31:29 | at edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker .runTask(ThreadPoolExecutor.java:665) INFO | jvm 1 | 2007/09/25 11:31:29 | at edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker .run(ThreadPoolExecutor.java:690) INFO | jvm 1 | 2007/09/25 11:31:29 | at java.lang.Thread.run(Thread.java:619) INFO | jvm 1 | 2007/09/25 11:31:29 | XmlBlaster.PingTimer: INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchConnectionsHandler.shutdown(Dispatc hConnectionsHandler.java:486) INFO | jvm 1 | 2007/09/25 11:31:29 | - waiting to lock 0xdb7a0f28 (a java.util.ArrayList) INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchManager.shutdown(DispatchManager.ja va:954) INFO | jvm 1 | 2007/09/25 11:31:29 | - locked 0xdb74d9c0 (a
Re: [xmlblaster] dead lock
Xavier Roques wrote: Hi David, When the dead lock occurred, I have one server with 144 connected clients. All my clients are configured in fail safe mode and all the messages are stored in RAM, the configuration of all my agents is: #server configuration dispatch/callback/retries=0 -- 0 no retry: XmlBlaster will clean up the session if the client does not respond to the callback ping if you need fail safe behaviour you should set dispatch/callback/retries=-1 regards Marcel dispatch/callback/delay=2000 dispatch/callback/pingInterval=2000 dispatch/callback/plugin/socket_ssl/multiThreaded=false #client configuration pingInterval=2000 retries=-1 delay=2000 The problem occurred after having restarted 30 of the agents running on the same box. I hope it may help, Xavier. *From:* [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] *On Behalf Of *David Robison *Sent:* mercredi 26 septembre 2007 14:46 *To:* xmlblaster@server.xmlBlaster.org *Subject:* Re: [xmlblaster] dead lock Can you tell me a little more about the conditions that caused the dead lock? We are experiencing a problem that may be related (although it may be just my wacky code). Any additional information would be helpful. David Robison *From:* Marcel Ruff [mailto:[EMAIL PROTECTED] *To:* xmlblaster@server.xmlBlaster.org *Sent:* Wed, 26 Sep 2007 07:03:15 -0400 *Subject:* Re: [xmlblaster] dead lock Hi Xavier, the dead lock is now fixed, the code is available with svn. thanks for reporting, Marcel Xavier Roques wrote: Hi, I'm using Xmlblaster 1.6. I restarted, some connected clients and unfortunately one of my client never connects back :( Even if I restart several times this client, it never successes to connect. That's why I dumped the threads' stack on the server side and I found the following dead lock (see below) Is there a way to avoid it ? Thanks, Xavier. XmlBlaster.ssl_socket.SSL.tcpListener-alouettebench17-agent: INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchManager.getConnectionStatusListener s(DispatchManager.java:206) INFO | jvm 1 | 2007/09/25 11:31:29 | - waiting to lock 0xdb74d9c0 (a org.xmlBlaster.util.dispatch.DispatchManager) INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchManager.toAlive(DispatchManager.jav a:293) INFO | jvm 1 | 2007/09/25 11:31:29 | - locked 0xdb7a0930 (a java.lang.Object) INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchConnectionsHandler.updateState(Disp atchConnectionsHandler.java:332) INFO | jvm 1 | 2007/09/25 11:31:29 | - locked 0xdb7a0f28 (a java.util.ArrayList) INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchConnectionsHandler.toAlive(Dispatch ConnectionsHandler.java:302) INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchConnection.handleTransition(Dispatc hConnection.java:575) INFO | jvm 1 | 2007/09/25 11:31:29 | - locked 0xdb7b2838 (a org.xmlBlaster.engine.dispatch.CbDispatchConnection) INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchConnection.initialize(DispatchConne ction.java:132) INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchConnectionsHandler.initialize(Dispa tchConnectionsHandler.java:179) INFO | jvm 1 | 2007/09/25 11:31:29 | - locked 0xdb7a0f28 (a java.util.ArrayList) INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchManager.updateProperty(DispatchMana ger.java:160) INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.authentication.SessionInfo.updateConnectQos(SessionInfo.j ava:513) INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.authentication.Authenticate.connect(Authenticate.java:276 ) INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.authentication.AuthenticateProtector.connect(Authenticate Protector.java:74) INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.authentication.AuthenticateProtector.connect(Authenticate Protector.java:62) INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.protocol.socket.HandleClient.handleMessage(HandleClient.j ava:266) INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.protocol.socket.HandleClient$1.run(HandleClient.java:379) INFO | jvm 1 | 2007/09/25 11:31:29 | at edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker .runTask(ThreadPoolExecutor.java:665) INFO | jvm 1 | 2007/09/25 11:31:29 | at edu.emory.mathcs.backport.java.util.concurrent.ThreadPoolExecutor$Worker .run(ThreadPoolExecutor.java:690) INFO | jvm 1 | 2007/09/25 11:31:29 | at java.lang.Thread.run(Thread.java:619) INFO | jvm 1 | 2007/09/25 11:31:29 | XmlBlaster.PingTimer: INFO | jvm 1 | 2007/09/25 11:31:29 | at org.xmlBlaster.util.dispatch.DispatchConnectionsHandler.shutdown(Dispatc hConnectionsHandler.java:486) INFO
