A fix is available
APAR status
Closed as program error.
Error description
WMQ 710 STRB_IN_USE_COUNT increments and gets out of sync. This results in the structure being disconnected with a reason of 'failure'. CSQE007I EEPLDISCFAILCONNECTION and CSQE008I can be seen on other queue managers.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All users of WebSphere MQ for z/OS Version 7 * * Release 1 Modification 0. * **************************************************************** * PROBLEM DESCRIPTION: CSQE007I EEPLDISCFAILCONNECTION and * * CSQE008I Recovery Event are received * * on QSG Qmgrs when another Qmgr in the * * group shuts down and has issued an * * IXLDISC macro with REASON(FAILURE). * * because a CF structure was still * * unexpectedly connected. * **************************************************************** * RECOMMENDATION: * **************************************************************** A Qmgr in a QSG is shutting down and detects that an application CF structure is unexpectedly still connected, so issues an IXLDISC macro with REASON(FAILURE) to indicate there has been an error. Other Qmgs in the same QSG receive messages CSQE007I, EEPLDISCFAILCONNECTION, and CSQE008I, Recovery Event. The CF structure has not been disconnected because the STRB_in_use_count is not zero. This field keeps count of the number of open SCBs (Shared Queue Control Blocks). At startup a CSQE_Queue_Manager_Restart request causes CSQEOPEN to invoke CSQECONN to connect to the CF structure and increments STRB_in_use_count. While the Qmgr was connecting to the CF structure, it receives an ENF 35 event to indicate a structure is available, which results in a CSQE_Reconnect_Appl_Str which also causes STRB_in_use_count to be incremented. When the Restart request is complete, STRB_in_use_count is decremented but only by 1 so the field is now incorrect.
Problem conclusion
CSQECONN has been altered to no longer update STRB_IN_USE_COUNT when an ENF 35 is received for a CF structure. 100Y CSQEOPEN
Temporary fix
Comments
APAR Information
APAR number
PI10249
Reported component name
WMQ Z/OS V7
Reported component ID
5655R3600
Reported release
100
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2014-01-23
Closed date
2014-03-10
Last modified date
2014-05-02
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UI15853
Modules/Macros
CSQEOPEN
Fix information
Fixed component name
WMQ Z/OS V7
Fixed component ID
5655R3600
Applicable component levels
R100 PSY UI15853
UP14/04/08 P F404
Fix is available
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Document Information
Modified date:
02 May 2014