APAR status
Closed as program error.
Error description
When using Circular logging, the queue manager crashes and generates the following failure data capture (FDC) records which indicate the queue manager log space is full: amqzmuc0 HL214091 mllWriteLogPages hrcE_MQLP_NOSPACE amqrmppa HL006003 hlgWriteLogRecord hrcE_UNEXPECTED_ERROR The following FDC records can also be seen along with the previous ones: amqrmppa AL004008 almLogIt xecF_E_UNEXPECTED_RC hrcE_LOG_DAMAGED amqrmppa AL004011 almLogIt xecF_E_UNEXPECTED_RC hrcE_LOG_DAMAGED IBM MQ diagnostics indicate the log was not full when the queue manager ended.
Local fix
Do not use RESET QMGR TYPE(REDUCELOG) Use Linear logging with automatic media image recording and automatic log management.
Problem summary
**************************************************************** USERS AFFECTED: Users running queue managers with circular logging under certain load conditions that trigger the queue manager to often use and release secondary log extents, and users who then run "RESET QMGR TYPE(REDUCELOG)" command to release log extents. Platforms affected: MultiPlatform **************************************************************** PROBLEM DESCRIPTION: A defect in IBM MQ log space management meant that the queue manager incorrectly detected the queue manager log was full when the log was actually not full and this resulted in the queue manager ending unexpectedly.
Problem conclusion
The IBM MQ queue manager logic has been modified to fix the defect in log space management. --------------------------------------------------------------- The fix is targeted for delivery in the following PTFs: Version Maintenance Level v9.1 LTS 9.1.0.11 v9.2 LTS 9.2.0.5 v9.x CD 9.2.5 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
IT38799
Reported component name
IBM MQ BASE MP
Reported component ID
5724H7271
Reported release
910
Status
CLOSED PER
PE
NoPE
HIPER
YesHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2021-10-25
Closed date
2021-12-21
Last modified date
2021-12-21
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
IBM MQ BASE MP
Fixed component ID
5724H7271
Applicable component levels
[{"Line of Business":{"code":"LOB45","label":"Automation"},"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSYHRD","label":"IBM MQ"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"910"}]
Document Information
Modified date:
22 December 2021