A fix is available
APAR status
Closed as program error.
Error description
Errors including: CSQY227E CSQ1 CSQSHGMN Unable to allocate storage above the bar using IARV64, RC=00000008, reason=4A001620 and Abend 5C6-00A30042 in CSQSHGMN occur when multiple subscribers are registered/created at the same time.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All users of WebSphere MQ for z/OS Version 7 * * Release 0 Modification 1 and Release 1 * * Modification 0. * **************************************************************** * PROBLEM DESCRIPTION: An increased storage usage that may * * lead to message CSQY227E if above bar * * storage is restricted, can occur when * * adding a large number of subscribers * * simultaneously. * **************************************************************** * RECOMMENDATION: * **************************************************************** When a new subscriber is created, a 100mb buffer is obtained for the subscription, to hold the contents of any matching retained publications found. This is done in all cases, even when no applicable retained publications exist. When many subscriptions are created in a short period of time, the storage required for these buffers will increase, and may cause issues if storage above the bar is restricted, such as having MEMLIMIT set.
Problem conclusion
The processing for new subscriptions has been altered, to only obtain storage for a buffer if retained publications are found for the subscriber. 010Y 100Y CSQMRPUT
Temporary fix
Comments
APAR Information
APAR number
PI12493
Reported component name
WMQ Z/OS V7
Reported component ID
5655R3600
Reported release
010
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2014-02-26
Closed date
2014-08-13
Last modified date
2014-10-13
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UI20462 UI20463 PI27507
Modules/Macros
CSQMRPUT
Fix information
Fixed component name
WMQ Z/OS V7
Fixed component ID
5655R3600
Applicable component levels
Fix is available
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Document Information
Modified date:
13 October 2014