APAR status
Closed as program error.
Error description
Queue manager gets unresponsive and even control commands get hung (amqrfdm, runmqsc, endmqm, amqrrmit, ...). Pstate on primary channel server shows it in "rfxConnectCache". Master repman shows in pstate outstanding I/O to the primary channel server. "endmqm -p" does not work!
Local fix
N/A
Problem summary
Due to fix for IT25666, queue manager gets trap in deadlock when a channel is deleted during the cluster cache maintenance, when the primary channel server is not running onthe sameCPU as the master repman.
Problem conclusion
Code was changed to avoid extended cluster cache lock in this maintenance phase.
Temporary fix
Run primary channel server on CPU 0 together with master repman.
Comments
APAR Information
APAR number
IT29927
Reported component name
WEBS MQ NSS ITA
Reported component ID
5724A3902
Reported release
531
Status
CLOSED PER
PE
NoPE
HIPER
YesHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2019-08-09
Closed date
2019-08-09
Last modified date
2019-08-09
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
WEBS MQ NSS ITA
Fixed component ID
5724A3902
Applicable component levels
[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSFKSJ","label":"WebSphere MQ"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"5.3.1","Edition":"","Line of Business":{"code":"LOB45","label":"Automation"}}]
Document Information
Modified date:
31 March 2023