APAR status
Closed as program error.
Error description
Available memory on the system may either become exhausted or may be seen to be increasing in an unbounded manner. Further investigation may show that the Java JVM process and the MQ amqzmuc0 process are using a large amount of memory.
Local fix
Problem summary
**************************************************************** USERS AFFECTED: Users with large number of topic nodes in their topic tree may encounter this issue. Platforms affected: MultiPlatform **************************************************************** PROBLEM DESCRIPTION: The topic scavenger routine which checks and reclaims the space used by dynamic topic nodes did not correctly free all allocated memory for nodes in the topic tree, once the memory was no longer required, resulting in a rise in reported memory usage.
Problem conclusion
The code has been modified to free memory associated with a topic node once it is removed from the tree. --------------------------------------------------------------- The fix is targeted for delivery in the following PTFs: Version Maintenance Level v8.0 8.0.0.7 v9.0 CD 9.0.2 v9.0 LTS 9.0.0.2 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
IT15770
Reported component name
WMQ BASE MULTIP
Reported component ID
5724H7251
Reported release
800
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2016-06-17
Closed date
2017-02-20
Last modified date
2020-07-27
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
PH27898
Fix information
Fixed component name
WMQ BASE MULTIP
Fixed component ID
5724H7251
Applicable component levels
[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSYHRD","label":"IBM MQ"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"8.0.0.0","Line of Business":{"code":"LOB45","label":"Automation"}}]
Document Information
Modified date:
28 July 2020