APAR status
Closed as program error.
Error description
The runmqlsr process is consuming a high amount of CPU. The trace associated with the runmqlsr process is filled with: ----{ xcsConnectSharedMemSet ----}! xcsConnectSharedMemSet rc=xecL_E_INVALID_PARAM
Local fix
Restart of the listener. or If a restart of the listener alone does not help, restart both the listener and the queue manager.
Problem summary
**************************************************************** USERS AFFECTED: All users of MQ. Platforms affected: MultiPlatform **************************************************************** PROBLEM DESCRIPTION: runmqlsr was attempting to start up a channel, and in the course of that activity, it encountered an internal error when trying to attach to a shared memory segment. The handling of this internal error was incorrect, leading to a never-ending loop trying the same thing, which was always failing.
Problem conclusion
The MQ code has been corrected so that, in this error branch, an FDC record will be written, and the operation will correctly fail. There will be no similar high-CPU condition. --------------------------------------------------------------- The fix is targeted for delivery in the following PTFs: Version Maintenance Level v9.0 LTS 9.0.0.12 v9.1 LTS 9.1.0.10 v9.2 LTS 9.2.0.4 v9.x CD 9.2.4 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
IT37576
Reported component name
IBM MQ BASE M/P
Reported component ID
5724H7261
Reported release
900
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2021-07-12
Closed date
2021-08-26
Last modified date
2021-08-26
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
PH40143
Fix information
Fixed component name
IBM MQ BASE M/P
Fixed component ID
5724H7261
Applicable component levels
[{"Line of Business":{"code":"LOB45","label":"Automation"},"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSYHRD","label":"IBM MQ"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"9.0"}]
Document Information
Modified date:
27 August 2021