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| QueueSession.commit() get stuck |
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| claire |
 Posted: Fri Sep 23, 2005 2:35 am Post subject: QueueSession.commit() get stuck |
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Apprentice
Joined: 10 Apr 2002
Posts: 32
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Hi,
When my JMS client(thread "Thread-0") tries to execute QueueSession.commit() to commit a queue read operation, it gets stuck for several minutes(5~30 min).
And then I take a thread dump to look for the root cause, it seems that thread "Thread-0" is waiting for a object locked by thread "asyncDelivery0".
Please advise what's wrong and what "asyncDelivery0" does. Thanks a lot.
3XMTHREADINFO "asyncDelivery0" (TID:0xB3B5F0, sys_thread_t:0x2BC52DB8, state:R, native ID:0x14C) prio=5
4XESTACKTRACE at java.net.SocketInputStream.socketRead0(Native Method)
4XESTACKTRACE at java.net.SocketInputStream.read(SocketInputStream.java:153)
4XESTACKTRACE at java.io.BufferedInputStream.fill(BufferedInputStream.java:200)
4XESTACKTRACE at java.io.BufferedInputStream.read1(BufferedInputStream.java:239)
4XESTACKTRACE at java.io.BufferedInputStream.read(BufferedInputStream.java:294)
4XESTACKTRACE at java.io.DataInputStream.readFully(DataInputStream.java:293)
4XESTACKTRACE at java.io.DataInputStream.readInt(DataInputStream.java:471)
4XESTACKTRACE at com.ibm.mq.MQInternalCommunications.timedReadInt(MQInternalCommunications.java:3705)
4XESTACKTRACE at com.ibm.mq.MQInternalCommunications.receiveBytes(MQInternalCommunications.java:1165)
4XESTACKTRACE at com.ibm.mq.MQInternalCommunications.receive(MQInternalCommunications.java:1353)
4XESTACKTRACE at com.ibm.mq.MQSESSIONClient.lowLevelComms(MQSESSIONClient.java:2800)
4XESTACKTRACE at com.ibm.mq.MQSESSIONClient.MQGET(MQSESSIONClient.java:1845)
4XESTACKTRACE at com.ibm.mq.MQQueue.getMsg2Int(MQQueue.java:1079)
4XESTACKTRACE at com.ibm.mq.MQQueue.getMsg2(MQQueue.java:939)
4XESTACKTRACE at com.ibm.mq.jms.MQMessageConsumer.getMessageQ(MQMessageConsumer.java:1532)
4XESTACKTRACE at com.ibm.mq.jms.MQMessageConsumer.getMessage(MQMessageConsumer.java:4313)
4XESTACKTRACE at com.ibm.mq.jms.MQMessageConsumer.receiveAsyncQ(MQMessageConsumer.java:2504)
4XESTACKTRACE at com.ibm.mq.jms.MQMessageConsumer.receiveAsync(MQMessageConsumer.java:4257)
4XESTACKTRACE at com.ibm.mq.jms.contact admin.run(contact admin.java:420)
4XESTACKTRACE at java.lang.Thread.run(Thread.java:568)
3XMTHREADINFO "Thread-1" (TID:0xB3B648, sys_thread_t:0x301A50, state:CW, native ID:0x998) prio=5
3XMTHREADINFO "Thread-0" (TID:0xB3B6A0, sys_thread_t:0x2BC07D10, state:CW, native ID:0x8B4) prio=5
4XESTACKTRACE at com.ibm.mq.jms.MQSession.commitQ(MQSession.java:3720)
4XESTACKTRACE at com.ibm.mq.jms.MQQueueSession.commit(MQQueueSession.java:143)
4XESTACKTRACE at RequestResponseHandler.getResponse(RequestResponseHandler.java:45)
4XESTACKTRACE at MQHandler.doRequest(MQHandler.java:72)
4XESTACKTRACE at MQHandler.doVerbFor(MQHandler.java:59)
4XESTACKTRACE at TestThread.run(TestThread.java:11) |
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| fjb_saper |
| Posted: Fri Sep 23, 2005 2:46 am Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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MQ Server version + Server OS version
MQ Client version + client OS
MQ Transport (bindings ?)
Participating in a multiphase commit ?
There are a lot of questions and you do describe only the symptom, no the scenario....
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| hopsala |
| Posted: Fri Sep 23, 2005 5:23 am Post subject: |
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Guardian
Joined: 24 Sep 2004
Posts: 960
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Also:
- Post the relevant code snippet.
- Check the error logs on the server.
- Does this always happen? Has this ever worked in the past?
- Do you have other programs using commits and does it work there?
- How many msgs are you commiting? (of what size?)
Info, we need more Info... |
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