IT38037: AN UNCAUGHT EXCEPTION DOWNSTREAM OF THE GROUP CREATED TERMINAL ON THE GROUP SCATTER NODE WILL TRIGGER AN ABEND

APAR status

• Closed as program error.

Error description

• If an uncaught exception reaches the GroupCreated terminal of
  the GroupScatter node then an abend will occur. The abend stack
  will show:
  
  ----------------------------- Stack dump for current thread (
   349)
  #0   0x7fb6c17c98de in ?? from
  /opt/ibm/ace-12/server/lib/libCommonServices.so
  #1   0x7fb6c177efe0 in ImbAbend::dumpCurrentStacksToFile(void
  const*, int) from
  /opt/ibm/ace-12/server/lib/libCommonServices.so
  #2   0x7fb6c177fbe2 in ImbAbend::dumpToFile(char*, char const*,
  int, char const*, ImbAbend::Insert const&, ImbAbend::Insert
  const&, ImbAbend::Insert const&, ImbAbend::Insert const&,
  ImbAbend::Insert const&, ImbAbend::Insert const&, void const*)
  from /opt/ibm/ace-12/server/lib/libCommonServices.so
  #3   0x7fb6c177ff05 in ImbAbend::logSystemErrorInternal(char
  const*, int, char const*, ImbAbend::Insert const&,
  ImbAbend::Insert const&, ImbAbend::Insert const&,
  ImbAbend::Insert const&, ImbAbend::Insert const&,
  ImbAbend::Insert const&, void const*, bool) from
  /opt/ibm/ace-12/server/lib/libCommonServices.so
  #4   0x7fb6c178032f in
  ImbAbend::logSystemErrorAndTerminateProcessInternal(char const*,
  int, char const*, ImbAbend::Insert const&, ImbAbend::Insert
  const&, ImbAbend::Insert const&, ImbAbend::Insert const&,
  ImbAbend::Insert const&, ImbAbend::Insert const&, void const*,
  bool) from /opt/ibm/ace-12/server/lib/libCommonServices.so
  #5   0x7fb6c16f5ab1 in ImbAbend::signalHandlerInternal(int,
  siginfo_t*, void*) from
  /opt/ibm/ace-12/server/lib/libCommonServices.so
  #6   0x7fb57d027687 in ?? from /opt/mqm/lib64/libmqe_r.so
  #7   0x7fb57d02854a in ?? from /opt/mqm/lib64/libmqe_r.so
  #8   0x7fb6c427cb20 in ?? from /lib64/libpthread.so.0
  #9   0x7fb6bf7b6d4b in ImbIMA_ThreadContext::pop() from
  /opt/ibm/ace-12/server/lib/libInMemoryAggregation.so
  #10  0x7fb5ef58d64f in ImbGroupScatterNode::processOutputMessag
  eAssembly(ImbRequestTemplateNode::RequestContext*,ImbMessageAsse
  /opt/ibm/ace-12/server/lib/libGroupNodes.so
  #11  0x7fb5ef58a86c in ImbGroupScatterNode::afterPropagateWitho
  utCatch(ImbRequestTemplateNode::RequestContext*,ImbMessageAssemb
  /opt/ibm/ace-12/server/lib/libGroupNodes.so
  #12  0x7fb6b5a15158 in
  ImbRequestTemplateNode::evaluate(ImbMessageAssembly const&,
  ImbDataFlowTerminal const*) from
  /opt/ibm/ace-12/server/lib/libTemplateNodes.so
  

Local fix

• Place a TryCatch node immediately downstream of the GroupScatter
  node's GroupCreated terminal.
  

Problem summary

• ****************************************************************
  USERS AFFECTED:
  All users of the GroupCreated terminal on the GroupScatter node
  in IBM App Connect Enterprise.
  
  
  Platforms affected:
  MultiPlatform
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  If an uncaught exception reaches the GroupCreated terminal of
  the GroupScatter node then an abend will occur. The abend stack
  will show:
  
  ImbAbend::signalHandlerInternal() from
  /opt/ibm/ace-12/server/lib/libCommonServices.so
  ?? from /opt/mqm/lib64/libmqe_r.so
  ?? from /opt/mqm/lib64/libmqe_r.so
  ?? from /lib64/libpthread.so.0
  ImbIMA_ThreadContext::pop() from
  /opt/ibm/ace-12/server/lib/libInMemoryAggregation.so
  ImbGroupScatterNode::processOutputMessageAssembly() from
  /opt/ibm/ace-12/server/lib/libGroupNodes.so
  ImbGroupScatterNode::afterPropagateWithoutCatch() from
  /opt/ibm/ace-12/server/lib/libGroupNodes.so
  ImbRequestTemplateNode::evaluate() from
  /opt/ibm/ace-12/server/lib/libTemplateNodes.so
  

Problem conclusion

• Uncaught exceptions reaching the GroupScatter node via the
  GroupCreated terminal no longer cause an abend and are processed
  correctly.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v11.0      11.0.0.15
  v12.0      12.0.2.0
  
  The latest available maintenance can be obtained from:
  http://www-01.ibm.com/support/docview.wss?rs=849&uid=swg27006041
  
  If the maintenance level is not yet available,information on
  its planned availability can be found on:
  http://www-1.ibm.com/support/docview.wss?rs=849&uid=swg27006308
  ---------------------------------------------------------------
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  APP CONNECT ENT

• Fixed component ID

  5724J0550

Applicable component levels