2-phase-commit using MQseries as XA coordinator

[Johannes de Jong]

I'm posting this on behalf of a collegue of mine.
When running the 2-phase-commit sample (mqdb2log) I get an error at the moment I begin the unit of work; so at the statement qMnr.begin(). I did the configuration at the queuemanager (swithfile jdbcdb2.dll etc.)
Configuration
Windows Nt
Mqeries 5.2
DB2 PE 8.1
Java 1.4.1.02

An unexpected exception has been detected in native code outside the VM.
Unexpected Signal : EXCEPTION_ACCESS_VIOLATION occurred at PC=0x6C292FF0
Function=db2XaGetInfo+0x4C0
Library=C:\PROGRA~1\IBM\SQLLIB\BIN\DB2APP.dll
Current Java thread:
at COM.ibm.db2.jdbc.app.DB2XAResource.xaStart(Native Method)
at COM.ibm.db2.jdbc.app.DB2XAResource.start(Unknown Source)
at com.ibm.mq.XAtoJTA.xa_start(XAtoJTA.java:864)
at com.ibm.mq.XAtoJTA.XAStart(XAtoJTA.java:577)
- locked <06CBDF90> (a java.lang.Class)
at com.ibm.mq.server.MQSESSION._MQBEGIN(Native Method)
at com.ibm.mq.server.MQSESSION._MQBEGINWrapper(MQSESSION.java:831)
at com.ibm.mq.server.MQThread.run(MQThread.java:1430)
- locked <02BB0E10> (a com.ibm.mq.Pint)
- locked <02BB0048> (a com.ibm.mq.server.MQThread)
at java.lang.Thread.run(Thread.java:536)
Dynamic libraries:
0x00400000 - 0x00406000 C:\WINNT\system32\java.exe
0x77F60000 - 0x77FBE000 C:\WINNT\System32\ntdll.dll
0x77DC0000 - 0x77DFF000 C:\WINNT\system32\ADVAPI32.dll
0x77F00000 - 0x77F5E000 C:\WINNT\system32\KERNEL32.dll
0x77E70000 - 0x77EC5000 C:\WINNT\system32\USER32.dll
0x77ED0000 - 0x77EFC000 C:\WINNT\system32\GDI32.dll
0x77E10000 - 0x77E67000 C:\WINNT\system32\RPCRT4.dll
0x78000000 - 0x78044000 C:\WINNT\system32\MSVCRT.dll
0x6D340000 - 0x6D46A000 C:\Program Files\Java\j2re1.4.1_02\bin\client\jvm.dll
0x77FD0000 - 0x77FFA000 C:\WINNT\system32\WINMM.dll
0x6D1E0000 - 0x6D1E7000 C:\Program Files\Java\j2re1.4.1_02\bin\hpi.dll
0x6D310000 - 0x6D31E000 C:\Program Files\Java\j2re1.4.1_02\bin\verify.dll
0x6D220000 - 0x6D239000 C:\Program Files\Java\j2re1.4.1_02\bin\java.dll
0x6D330000 - 0x6D33D000 C:\Program Files\Java\j2re1.4.1_02\bin\zip.dll
0x1C000000 - 0x1C00B000 C:\Program Files\Ibm\MQSeries\Java\lib\mqjbnd04.dll
0x4FB50000 - 0x4FB58000 C:\Program Files\Ibm\MQSeries\bin\MQM.dll
0x0AF90000 - 0x0B03C000 C:\Program Files\Ibm\MQSeries\bin\AMQXCS2.dll
0x4CA00000 - 0x4CA41000 C:\WINNT\system32\NETAPI32.dll
0x77840000 - 0x77849000 C:\WINNT\system32\NETRAP.dll
0x777E0000 - 0x777ED000 C:\WINNT\system32\SAMLIB.dll
0x776D0000 - 0x776D8000 C:\WINNT\system32\WSOCK32.dll
0x776B0000 - 0x776C4000 C:\WINNT\system32\WS2_32.dll
0x776A0000 - 0x776A7000 C:\WINNT\system32\WS2HELP.dll
0x52100000 - 0x52128000 C:\WINNT\system32\WLDAP32.dll
0x0B040000 - 0x0B071000 C:\Program Files\Ibm\MQSeries\bin\AMQZST.dll
0x4D720000 - 0x4D726000 C:\Program Files\Ibm\MQSeries\bin\AMQLDATN.dll
0x0B080000 - 0x0B088000 C:\Program Files\Ibm\MQSeries\bin\AMQZC.dll
0x0B090000 - 0x0B0A0000 C:\Program Files\Ibm\MQSeries\bin\AMQVWAA2.dll
0x4FC70000 - 0x4FC76000 C:\Program Files\Ibm\MQSeries\bin\MQMVXD.dll
0x0B0A0000 - 0x0B0BB000 C:\Program Files\Ibm\MQSeries\bin\amqmtmgr.dll
0x77B20000 - 0x77BD7000 C:\WINNT\system32\ole32.dll
0x65340000 - 0x653D5000 C:\WINNT\system32\OLEAUT32.dll
0x4F790000 - 0x4F79A000 C:\Program Files\Ibm\MQSeries\bin\AMQZTM.dll
0x0B0C0000 - 0x0B0D5000 C:\Program Files\Ibm\MQSeries\bin\amqzsai.dll
0x77BF0000 - 0x77BF7000 C:\WINNT\system32\rpcltc1.dll
0x10000000 - 0x10016000 C:\Program Files\Ibm\SQLLIB\BIN\db2jdbc.dll
0x6C000000 - 0x6C236000 C:\PROGRA~1\IBM\SQLLIB\BIN\DB2CLI.dll
0x6C770000 - 0x6CA25000 C:\PROGRA~1\IBM\SQLLIB\BIN\DB2SYS.dll
0x6E260000 - 0x6E26B000 C:\PROGRA~1\IBM\SQLLIB\BIN\DB2WINT.dll
0x0B880000 - 0x0B895000 C:\PROGRA~1\IBM\SQLLIB\BIN\DB2SYSP.dll
0x6C240000 - 0x6C4E1000 C:\PROGRA~1\IBM\SQLLIB\BIN\DB2APP.dll
0x6C620000 - 0x6C738000 C:\PROGRA~1\IBM\SQLLIB\BIN\DB2UTIL.dll
0x6C4F0000 - 0x6C529000 C:\PROGRA~1\IBM\SQLLIB\BIN\DB2ABIND.dll
0x0B8A0000 - 0x0B9D0000 C:\PROGRA~1\IBM\SQLLIB\BIN\db2osse.dll
0x0B9D0000 - 0x0B9DC000 C:\PROGRA~1\IBM\SQLLIB\BIN\db2locale.dll
0x0B9E0000 - 0x0BA18000 C:\PROGRA~1\IBM\SQLLIB\BIN\db2trcapi.dll
0x77A90000 - 0x77A9B000 C:\WINNT\system32\VERSION.dll
0x77C40000 - 0x77D7C000 C:\WINNT\system32\SHELL32.dll
0x71700000 - 0x7178A000 C:\WINNT\system32\COMCTL32.dll
0x779C0000 - 0x779C8000 C:\WINNT\system32\LZ32.dll
0x0BBF0000 - 0x0BBFB000 C:\Program Files\Ibm\MQSeries\Java\lib\MQXAi01.dll
0x0BC00000 - 0x0BC06000 C:\Program Files\Ibm\MQSeries\bin\MQMXA.dll
0x0BD30000 - 0x0BD3D000 c:\program files\Ibm\mqseries\java\lib\jdbc\jdbcdb2.dll
0x76AC0000 - 0x76ADD000 C:\WINNT\system32\imagehlp.dll
0x71DC0000 - 0x71DCA000 C:\WINNT\system32\PSAPI.DLL
Local Time = Tue Apr 08 15:09:16 2003
Elapsed Time = 10
#
# The exception above was detected in native code outside the VM
#
# Java VM: Java HotSpot(TM) Client VM (1.4.1_02-b06 mixed mode)
#

[Mike Jay]

In our case we were using websphere as the syncpoint manager, but I think you need the exterprise edition of DB2 to participate in 2-phase commit.