APAR status
Closed as program error.
Error description
The ps output captured by runmqras shows lot of memory consumed by corosync process. Example excerpt from "ps -eo" output: 24850 1 2 S 64702492 32.5 1.5 Feb 09 13:04:46 root root root root corosync This ps output indicates corosync process consumed around 64 GB memory.
Local fix
Reboot the appliance.
Problem summary
**************************************************************** USERS AFFECTED: Users of MQ appliance with QMs configured High in Availability likely to see high memory usage on the HA appliance where the QMs are running as standby Platforms affected: MultiPlatform **************************************************************** PROBLEM DESCRIPTION: The memory leak occurred because of defects in corosync and pacemaker components used for High Availability in MQ appliance.
Problem conclusion
MQ appliance corosync and pacemaker components have been updated to higher version to fix the memory leak. --------------------------------------------------------------- The fix is targeted for delivery in the following PTFs: Version Maintenance Level v9.1 CD TBC. v9.1 LTS 9.1.0.6 The latest available maintenance can be obtained from 'WebSphere MQ Recommended Fixes' http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006037 If the maintenance level is not yet available information on its planned availability can be found in 'WebSphere MQ Planned Maintenance Release Dates' http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006309 ---------------------------------------------------------------
Temporary fix
Comments
APAR Information
APAR number
IT32630
Reported component name
MQ APPLIANCE M2
Reported component ID
5737H4700
Reported release
913
Status
CLOSED PER
PE
NoPE
HIPER
YesHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2020-04-22
Closed date
2020-06-10
Last modified date
2020-06-10
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
MQ APPLIANCE M2
Fixed component ID
5737H4700
Applicable component levels
[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SS5K6E","label":"IBM MQ Appliance"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"913","Line of Business":{"code":"LOB36","label":"IBM Automation"}}]
Document Information
Modified date:
11 June 2020