A fix is available
APAR status
Closed as program error.
Error description
A broker flow fails with "MQ error creating a Message Handle - MQ Reason code - 2127" followed by "java.lang.OutOfMemoryError: Failed to create a thread: retVal -1073741830, errno 112" after which all instances fail with an out-of-memory error. . Change Team determined storage has filled with a large number of 128Kb blocks (with eyecatcher AHSG) related to MQ message handle processing. WebSphere MQ has stopped tracking these and not released them back to z/OS. . Additional keywords: MQRC_ADAPTER_STORAGE_SHORTAGE MQMSGPROP/K
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All users of WebSphere MQ for z/OS Version 7 * * Release 1 Modification 0. * **************************************************************** * PROBLEM DESCRIPTION: Long-running application that uses * * message handles fails with reason code * * 2127 MQRC_ADAPTER_STORAGE_SHORTAGE. * **************************************************************** * RECOMMENDATION: * **************************************************************** A long-running application issues MQCRTMH several times and uses a large amount of heap storage for message handles. When the application issues a MQDLTMH, only the first block of message handle storage is released. The routine free_all_stg in CSQAFRMN is not following the chain of message handle storage correctly and therefore does not free all the blocks. If this occurs many times, storage is used up and the application will get reason code 2127 MQRC_ADAPTER_STORAGE_SHORTAGE. Additional Keywords: MQMSGPROP/K
Problem conclusion
CSQAFRMN has been altered to run down the chain of blocks and free them all. 100Y CSQAFRMN
Temporary fix
********* * HIPER * *********
Comments
APAR Information
APAR number
PI09766
Reported component name
WMQ Z/OS V7
Reported component ID
5655R3600
Reported release
100
Status
CLOSED PER
PE
NoPE
HIPER
YesHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2014-01-16
Closed date
2014-02-20
Last modified date
2014-08-18
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UI15330 PI24063
Modules/Macros
CSQAFRMN
Fix information
Fixed component name
WMQ Z/OS V7
Fixed component ID
5655R3600
Applicable component levels
R100 PSY UI15330
UP14/04/08 P F404
Fix is available
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Document Information
Modified date:
18 August 2014