APAR status
Closed as program error.
Error description
After upgrading queue manager to MQ 9.3 each MQ process consumed more memory when compared with queue manager processes running on MQ 9.2 and lower MQ versions. The "ps -elf" output gathered after upgrading to MQ 9.3 shows a significantly larger process size (SZ) for MQ all processes.
Local fix
Problem summary
**************************************************************** USERS AFFECTED: All Users of MQ 9.3 Platforms affected: MultiPlatform **************************************************************** PROBLEM DESCRIPTION: A defect in calculating the size of memory allocated for tracking heap usage in MQ caused increased memory usage in MQ processes.
Problem conclusion
MQ code has been modified to resolve the defect, thereby reducing the memory usage. --------------------------------------------------------------- The fix is targeted for delivery in the following PTFs: Version Maintenance Level v9.3 LTS 9.3.0.20 v9.x CD 9.3.5 The latest available maintenance can be obtained from 'IBM MQ Recommended Fixes' https://www.ibm.com/support/pages/recommended-fixes-ibm-mq If the maintenance level is not yet available information on its planned availability can be found in 'IBM MQ Planned Maintenance Release Dates' https://ibm.biz/mqplannedmaintenance ---------------------------------------------------------------
Temporary fix
Comments
APAR Information
APAR number
IT45128
Reported component name
MQ BASE V9.3
Reported component ID
5724H7291
Reported release
930
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2023-12-12
Closed date
2024-05-07
Last modified date
2024-05-10
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 BASE V9.3
Fixed component ID
5724H7291
Applicable component levels
[{"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSYHRD","label":"IBM MQ"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"930","Line of Business":{"code":"LOB67","label":"IT Automation \u0026 App Modernization"}}]
Document Information
Modified date:
10 May 2024