APAR status
Closed as program error.
Error description
Analysis of the amqzlsa0 process indicates a gradual memory usage growth which does not reduce over time.
Local fix
Restarting the queue manager releases the accumulated memory of the amqzlsa0 processes.
Problem summary
**************************************************************** USERS AFFECTED: Users of WebSphere MQ with applications using asynchronous message consumers and ISOLATED bindings. Platforms affected: MultiPlatform **************************************************************** PROBLEM DESCRIPTION: A coding erorr in the MQ queue manager meant that not all allocated memory was correctly freed when one or more asynchronous consumers connected using ISOLATED bindings.
Problem conclusion
The MQ queue manager logic in this area has been modified to free allocated memory correctly. --------------------------------------------------------------- The fix is targeted for delivery in the following PTFs: Version Maintenance Level v7.5 7.5.0.9 v8.0 8.0.0.8 v9.0 CD 9.0.4 v9.0 LTS 9.0.0.3 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
IT18785
Reported component name
WMQ BASE MULTIP
Reported component ID
5724H7241
Reported release
750
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2017-01-19
Closed date
2017-09-11
Last modified date
2017-09-11
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
5724H7241
Applicable component levels
[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSDEZSF","label":"IBM WebSphere MQ Managed File Transfer for z\/OS"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"7.5","Edition":"","Line of Business":{"code":"LOB45","label":"Automation"}}]
Document Information
Modified date:
31 March 2023