A fix is available
APAR status
Closed as program error.
Error description
Increased cpu in channel initiator ( CHIN CHINIT ). Increase in storage used by the CHIN as indicated by message CSQX004I. This leads to a daily increase in the CPU used by the CHIN. The problem occurs when using multiplexed channels. . Additional Symptoms and Keywords: There is a storage leak of ZSTM control blocks associated with message properties: XHSG, XMSH, ZSTM, ZRFP . Subpool 0 Key 8 SP0 KEY8 CSQX027E
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All users of WebSphere MQ for z/OS Version 7 * * Release 1 Modification 0. * **************************************************************** * PROBLEM DESCRIPTION: The CPU and storage usage increases in * * the channel initiator over time, * * indicated by message CSQX004I. * **************************************************************** * RECOMMENDATION: * **************************************************************** When clients sharing conversations (i.e. SHARECNV > 0) are used in conjunction with message handles, the XMSH, ZSTM, XHSG and ZRFP control blocks anchored in the session get allocated by rriGetMsgHandle, however they are not released when the conversation and session are ended. Thus storage is leaked.
Problem conclusion
The code was changed to correctly free the message handle control blocks when the session is deallocated. 100Y CSQXRMAS
Temporary fix
********* * HIPER * *********
Comments
APAR Information
APAR number
PI06968
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
2013-11-26
Closed date
2014-01-10
Last modified date
2014-03-03
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UI14133
Modules/Macros
CSQXRMAS
Fix information
Fixed component name
WMQ Z/OS V7
Fixed component ID
5655R3600
Applicable component levels
R100 PSY UI14133
UP14/02/05 P F402
Fix is available
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Document Information
Modified date:
03 March 2014