IZ40999: DEPLOY ABEND CAN OCCUR WHEN USING SHARED VARIABLES

WebSphere Message Broker V6.1 - Fix Pack 6.1.0.7

APAR status

• Closed as program error.

Error description

• Although the abends can possibly occur at any time, they are
  being hit primarily when deploying flows or with the first
  message that is processed when the broker starts up.  They can
  also occur when stopping a flow.  The abends occur when using
  shared variables.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of WebSphere Message Broker using  *
  *                 ESQL shared variables.                       *
  ****************************************************************
  * PROBLEM DESCRIPTION: An abend can occur if a Compute node    *
  *                      using shared variables is unable to     *
  *                      connect to its data source when the     *
  *                      first message passes through it after   *
  *                      the flow starts and the flow has        *
  *                      additional instances or more than one   *
  *                      input node.                             *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  The problem can occur in a flow using shared variables when
  there are multiple instances of the flow or the flow has more
  than one input node. This can only happen if a node cannot
  connect to its data source when the first message passes
  through that node. The connection failure leads to run time
  ESQL objects being recreated that processing reinitialises the
  shared variables. It was also noted that messages could bypass
  a node when the node is generating the runtime objects.
  

Problem conclusion

• WebSphere Message Broker was modified so that shared variables
  are no longer reintialised and messages can no longer bypass
  the Compute node.
  

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

  WMB SOL SPARC

• Fixed component ID

  5724J0502

Applicable component levels

• R100 PSY

     UP