| Author |
Message
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| prasadpav |
 Posted: Thu Dec 22, 2005 8:03 am Post subject: MB V6 on AIX: DataFlowEngine abends while starting |
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Centurion
Joined: 03 Oct 2004
Posts: 142
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Hi,
My env is: wMQ V6, WMQI V6, AIX 5.3, DB2 8.2
I did my custom java nodes migration from V5 to V6. When message broker starts, it registers the custom java nodes. During that process, DataFlowEngine abends. In syslog, there is no useful information apart from this:
| Quote: |
Dec 22 15:35:20 ibmserv1 user:err|error WebSphere Broker v6000[46358]: (NODE1BKR.2f23fd48-0801-0000-0080-929b9ae0c3e8)[1]BIP2228E: Severe error: /build/S000_P/src/CommonServices/Unix/ImbAbend.cpp 536 signal received Abend file: /var/mqsi/common/errors/NODE1BKR.2f23fd48-0801-0000-0080-929b9ae0c3e8.46358.1.abend action: abort
Dec 22 15:35:26 ibmserv1 user:warn|warning WebSphere Broker v6000[13642]: (NODE1BKR)[1543]BIP2060W: The broker has detected that the Execution Group default, process ID 46358, has shutdown. : NODE1BKR.agent: /build/S000_P/src/AdminAgent/ImbAdminAgent.cpp: 4038: ImbAdminAgent::startAndMonitorADataFlowEngine: :
Dec 22 15:35:26 ibmserv1 user:info WebSphere Broker v6000[48892]: (NODE1BKR.default)[1]BIP2201I: Execution Group started: process '48892'; thread '1'; additional information: brokerName 'NODE1BKR'; executionGroupUUID '2f23fd48-0801-0000-0080-929b9ae0c3e8'; executionGroupLabel 'default'; defaultExecutionGroup 'true'; queueManagerName 'NODE1QM'; trusted 'false'; dataSourceName 'NODE1DB'; userId 'wmqi'; migrationNeeded 'false'; brokerUUID '2e23fd48-0801-0000-0080-929b9ae0c3e8'; filePath '/usr/opt/wmqi6'; workPath '/var/mqsi'; ICU Converter Path ''. : NODE1BKR.2f23fd48-0801-0000-0080-929b9ae0c3e8: /build/S000_P/src/DataFlowEngine/ImbMain.cpp: 289: main: : |
The abend file looks like this:
| Quote: |
abend record for pid 48892 tid 1 time in seconds since 01/01/1970: 1135265730
File: /build/S000_P/src/CommonServices/Unix/ImbAbend.cpp
Line: 536
Function: signal received
---- Inserts ----
6
@(#) 1.33.1.16 CommonServices/Unix/ImbAbend.cpp, CommonServices, S000 05/02/17 13:14:39 [2/17/05 14:29:09]
804379568
-----------------
----------------------------- Stack dump for current thread ( 1)
(0xd005fcf0+0x00000080) pthread_kill [/usr/lib/libpthreads.a(shr_xpg5.o)]
(0xd005f7d4+0x00000058) _p_raise [/usr/lib/libpthreads.a(shr_xpg5.o)]
(0xd0236fbc+0x00000030) raise [/usr/lib/libpthreads.a(shr_xpg5.o)]
(0xd0264470+0x000000b8) abort [/usr/lib/libpthreads.a(shr_xpg5.o)]
(0xd89378a8+0x00000094) jni_FatalError [/usr/opt/wmqi6/jre/bin/classic/libjvm.a]
(0xd8959370+0x00000258) xeRunJniMethod [/usr/opt/wmqi6/jre/bin/classic/libjvm.a]
(0xd89367d8+0x00000104) invokeJniMethod [/usr/opt/wmqi6/jre/bin/classic/libjvm.a]
(0xd8933f88+0x0000003c) jni_CallLongMethodV [/usr/opt/wmqi6/jre/bin/classic/libjvm.a]
(0xdac15a28+0x00000078) mbBrokerExceptionToNativeException__21ImbJavaExceptionUtilsFP7JNIEnv_P11_jthrowable [/usr/opt/wmqi6/lib/libimbjplg.a]
(0xdac0fe68+0x000000e8) handleJavaException__21ImbJavaExceptionUtilsFP7JNIEnv_iP10ImbWstringT2P11_jthrowableP8_jobject [/usr/opt/wmqi6/lib/libimbjplg.a]
(0xdacc0440+0x00000014) handleJavaException__21ImbJavaExceptionUtilsFP7JNIEnv_iP10ImbWstringT2P11_jthrowable [/usr/opt/wmqi6/lib/libimbjplg.a]
(0xdacea868+0x00000388) bipGetJavaPluginNodeFactory [/usr/opt/wmqi6/lib/libimbjplg.a]
(0xdabf2128+0x00000010) bipGetMessageflowNodeFactory [/usr/opt/wmqi6/lil/imbjplug2.lil]
(0xd7280254+0x0000083c) __ct__10ImbLibraryFRC10ImbWstring [/usr/opt/wmqi6/lib/libMessageServices.a(libMessageServices.a.so)]
(0xd727f9b8+0x000000dc) loadLibrary__18ImbResourceManagerFRC10ImbWstring [/usr/opt/wmqi6/lib/libMessageServices.a(libMessageServices.a.so)]
(0xd950db88+0x00002b3c) start__7ImbMainFR18ImbStartParameters [/usr/opt/wmqi6/lib/libbipmain.a]
(0x10002058+0x00000408) main [DataFlowEngine]
(0x10000128+0x0000008c) __start [DataFlowEngine]
----------------------------------------------------------------------
w |
All the dependant jars & plugin jar are present in a seperate directory (/home/wmqi/dep_classes & /home/wmqi/plugin_classes) which are made available to broker using mqsichangebroker command.
Any ideas?
Prasad |
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| jefflowrey |
| Posted: Thu Dec 22, 2005 8:09 am Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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Can you see or cause to see in some way if the initialization method of your plugin is called?
If it's not getting that far, then I'd guess it's a packaging problem or a permissions problem on the jars. If it is getting that far, then it might be something in your code.
_________________
I am *not* the model of the modern major general. |
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| prasadpav |
| Posted: Thu Dec 22, 2005 8:41 am Post subject: |
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Centurion
Joined: 03 Oct 2004
Posts: 142
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I think it must have done initialization because message broker used to complain about "NoClassDefFound" while loading the custom java nodes. When I fixed those problems, then this one.
I don't think it would be a problem with the code because when I installed the same custom java nodes on windows platform it worked. I can even deploy message flows which uses those custom java nodes.
Prasad |
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| jefflowrey |
| Posted: Thu Dec 22, 2005 8:50 am Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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Is your code using JNI at all?
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I am *not* the model of the modern major general. |
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| Ian |
| Posted: Wed Dec 28, 2005 4:04 am Post subject: |
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Disciple
Joined: 22 Nov 2002
Posts: 152
Location: London, UK
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| Quote: |
| message broker used to complain about "NoClassDefFound" while loading the custom java nodes. When I fixed those problems, then this one. |
How did you fix this ?
I have just posted a reply to this type of error over here which says that when running WMB v6 GA and using Java plugin nodes you will get a "BIP4512S: java.lang.NoClassDefFoundError:" failure loading Java classes. This has been fixed under APAR IY77292. You will need to contact the WMB support team and request this fix.
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Regards, Ian |
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| prasadpav |
| Posted: Tue Jan 03, 2006 2:23 am Post subject: |
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Centurion
Joined: 03 Oct 2004
Posts: 142
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Hi,
Sorry for the late response. I was on leave during christmas and new year.
| Quote: |
| How did I fixed NoClassDefFound? |
I used "mqsichangebroker" to mention the lil path. I used 2 directories: one directory for dependant jars and another one for custom java plugin nodes.
After doing this, when I restart my broker, data flow engine abends creating the abend file above.
| Quote: |
| Is your code using JNI at all? |
No
The problem is not resolved yet. I'm also following up with IBM.
Prasad |
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| prasadpav |
| Posted: Wed Jan 04, 2006 9:19 am Post subject: |
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Centurion
Joined: 03 Oct 2004
Posts: 142
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Finally it is working now. Solution is to install APAR IY77292. Thanks Ian for pointing me to right direction.
Thanks everyone
Prasad |
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| powerlord |
| Posted: Thu Jan 19, 2006 7:11 am Post subject: |
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Novice
Joined: 02 Sep 2005
Posts: 19
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| prasadpav wrote: |
Finally it is working now. Solution is to install APAR IY77292. Thanks Ian for pointing me to right direction.
Thanks everyone
Prasad |
Just a note for people with a similar problem. This APAR is a new bootstrap.jar.
This appears to change the way the classloader(s) work. Which although it does fix this problem, does mean that (for me anyway) that some JNI call back code I had is now failing for a classnot found. Removing the APAR 'fixes' this.
I kind of doubt anyone else is using JNI callbacks into MB, so I don't think raising this with IBM is worth the hassle, I'm going to continue to look into it myself.
If anyone is interested we use a JNI callback in MB/JVM to start our flow using a custom input node:
HTTP SOAP message > out own soap handling adapter > C++ dll IPC bridge > MB/JVM.
stu |
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