IT17935: MEMORY LEAK IN THE MQINPUT NODE WHEN REPEATED EXCEPTIONS ARE ENCOUNTERED

APAR status

• Closed as program error.

Error description

• If an MQInput node encounters repeated exceptions, this can
  cause a large memory leak in the integration server.
  

Local fix

Problem summary

• ****************************************************************
  USERS AFFECTED:
  All users of IBM Integration Bus v10.0 using an MQInput node.
  
  
  Platforms affected:
  z/OS, MultiPlatform
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  In IBM Integration Bus (IIB) v10.0 the MQInput node uses a
  connector to retrieve the messages from the input queue. This
  connector uses the MQCTL call and then receives an MQCB callback
  from MQ.
  
  If any exception occurs in IIB during this MQCB, the exception
  cannot be thrown back past MQ. As such the connector has to
  cache the exception and then rethrow it when control returns
  back to the IIB processing prior to the MQCTL call.
  
  A defect exists such that the existing cached exception was not
  deleted before the new one was cached. Therefore if a message
  flow's MQInput node encounters repeated exceptions then this can
  cause a large memory leak in the Integration server.
  

Problem conclusion

• The MQInput node's connector exception caching has been
  corrected.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v10.0      10.0.0.7
  
  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

  INTEGRATION BUS

• Fixed component ID

  5724J0540

Applicable component levels

• RA00 PSY

     UP