A fix is available
APAR status
Closed as program error.
Error description
The Pub/Sub daemon terminates with CSQT807I if a message containing invalid data in the MQMD is published. The CHIN log shows the following messages: +CSQT976I ME2T CSQXDPSC Distributed Pub/Sub Publish Task has stopped +CSQT981E ME2T CSQXDPSC Distributed Pub/Sub disabled whilst in a Pub/Sub cluster +CSQT976I ME2T CSQXDPSC Distributed Pub/Sub Command Task has stopped +CSQT976I ME2T CSQXDPSC Distributed Pub/Sub Fan Out Task has stopped +CSQT807I ME2T CSQXFCTL Queued Pub/Sub Daemon ended
Local fix
n/a
Problem summary
**************************************************************** * USERS AFFECTED: All users of IBM MQ for z/OS Version 9 * * Release 0 Modification 0 and Release 1 * * Modification 0. * **************************************************************** * PROBLEM DESCRIPTION: CSQT976I is issued to report the * * termination of the 'Distributed Pub/Sub * * Publish Task'. * * CSQX053E is also issued to report the * * capture of an FFST in the CSQSNAP * * dataset. * * The FFST indicates the error occurred * * in psiReceivePublications. * * Following the error publications from * * remote queue managers are not delivered * * to local subscribers. * **************************************************************** A message with an invalid priority was published to a topic on a remote queue manager in the distributed pub/sub network. A proxy subscription for the topic existed at the remote queue manager, causing the publication to be sent to the local queue manager. psiReceivePublications got the publication message and delivered it to any local subscribers for the topic, however the invalid priority caused this publish activity to return MQCC_WARNING and MQRC_PRIORITY_EXCEEDS_MAXIMUM (2049). psiReceivePublications does not expect this warning return code, leading to it capturing the FFST and terminating prematurely.
Problem conclusion
psiReceivePublications is changed to handle MQRC_PRIORITY_EXCEEDS_MAXIMUM (MQRC2049) when republishing a message from a remote publisher to local subscribers.
Temporary fix
Comments
APAR Information
APAR number
PH03753
Reported component name
IBM MQ Z/OS V9
Reported component ID
5655MQ900
Reported release
000
Status
CLOSED PER
PE
NoPE
HIPER
YesHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2018-10-08
Closed date
2019-03-18
Last modified date
2019-05-02
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UI61931 UI61933
Modules/Macros
CMQXZMUP
Fix information
Fixed component name
IBM MQ Z/OS V9
Fixed component ID
5655MQ900
Applicable component levels
Fix is available
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Document Information
Modified date:
02 May 2019