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:
owner-xmlblaster at server.xmlBlaster.org
[mailto:owner-xmlblaster at server.xmlBlaster.org] On Behalf Of David
Robison
Sent: mercredi 26 septembre 2007 14:46
To: xmlblaster at 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:mr at marcelruff.info]
To: xmlblaster at 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
> 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
> org.xmlBlaster.util.dispatch.DispatchConnection.timeout(DispatchConnecti
> on.java:423)
> INFO | jvm 1 | 2007/09/25 11:31:29 | at
> org.xmlBlaster.util.Timeout.run(Timeout.java:189)
>
>
>
>
--
Marcel Ruff
http://www.xmlBlaster.org