IT38860: IBM MQ not delivering message to waiting consumers when MQ detects a chosenconsumer ended when delivering message.

APAR status

• Closed as fixed if next.

Error description

• When multiple consumers are waiting to get message from a queue
  and when
  MQ detects a consumer ended when attempting to deliver message
  to that
  consumer then MQ is not delivering the message to one of the
  consumers
  still waiting to get the message.
  

Local fix

Problem summary

• ****************************************************************
  USERS AFFECTED:
  All IBM MQ users are affected.
  
  
  Platforms affected:
  MultiPlatform
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  A design limitation caused a timing window during which the
  queue manager could not deliver a message to existing waiting
  consumers after a consumer ended unexpectedly. The message would
  instead be delivered to the next applicable MQGET request
  received for the queue by the queue manager.
  

Problem conclusion

Temporary fix

Comments

• The design limitation will be addressed in future MQ releases.
  

APAR Information

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

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

Fix information

Applicable component levels