APAR status
Closed as program error.
Error description
IBM MQ 8.0 processes consume large amount of memory in comparison to lower levels of MQ with same workload. Consumption is likely to be seen in amqzlaa0 and/or amqrmppa and applications if amqrmppa and the application connect to queue manager in fastpath mode. The leak occurs in the function zfuGroupCheckOS which verifies whether a given group exists or not.
Local fix
Problem summary
**************************************************************** USERS AFFECTED: Any users with MQ activity that requires a check on whether an OS group exists or not will be affected by this problem. Platforms affected: MultiPlatform **************************************************************** PROBLEM DESCRIPTION: This problem occurred because the memory allocated when querying the OS groups was not freed.
Problem conclusion
MQ has been modified to free the allocated memory when querying the OS groups. --------------------------------------------------------------- The fix is targeted for delivery in the following PTFs: Version Maintenance Level v8.0 8.0.0.3 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
IT08461
Reported component name
WMQ BASE MULTIP
Reported component ID
5724H7251
Reported release
800
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2015-04-22
Closed date
2015-04-28
Last modified date
2015-04-28
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
WMQ BASE MULTIP
Fixed component ID
5724H7251
Applicable component levels
R800 PSY
UP
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Document Information
Modified date:
28 April 2015