A fix is available
APAR status
Closed as program error.
Error description
The customer performed a 'CF failure' scenario. Their environment is running z/OS 2.1 with a 6-way QSG all running WebSphere MQ for z/OS V8.0. They received two abends: Dump Title: CSQB,ABN=5C6-00F20046,U=SYSOPR ,C=W9700.800.XMC - CSQ2QCP1,M=CSQGFRCV,LOC=CSQ2IEPL.CSQ2QCP1+0000219C . Dump Title: CSQL,ABN=5C6-00F20042,U=SYSOPR ,C=W9700.800.XMC - CSQ2QCP0,M=CSQGFRCV,LOC=CSQ2IEPL.CSQ2QCP0+0000453C . 00F20046 - CSQ2QCP1 got an MQCLOSE error 00F20042 - CSQ2QCP0 got an MQCLOSE error . The Change Team reviewed the two dumps for this problem. The 5C6-00F20042 and 5C6-00F20046 abends are occurring when MQRC_OUTCOME_PENDING is returned by the MQCMITs due to the structure being failed. It looks as though CSQ2QCP0 and CSQ2QCP1 need to be changed to handle this return code.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All users of WebSphere MQ for z/OS Version 8 * * Release 0 Modification 0. * **************************************************************** * PROBLEM DESCRIPTION: When using the IMS bridge, abend * * 5C6-00F20042 or 5C6-00F20046 are * * produced if connectivity is lost to the * * CF structure hosting a shared queue * * used by the IMS bridge (either request * * or reply), when the IMS bridge * * processing attempts a MQCMIT. * **************************************************************** * RECOMMENDATION: * **************************************************************** When the IMS bridge is processing a message on a shared IMS bridge queue, or putting a message to a reply queue it will attempt to perform a MQCMIT for the unit of work. If in the case where the queue being used is hosted on a CF, that connectivity to has been lost, the MQCMIT will return MQRC_OUTCOME_PENDING, which should be considered a valid return code, and that the commit has been successfully issued. However, in this case, the IMS bridge processing does not expect this return code, resulting in abends 5C6-00F20042 (CSQ2_QCP0_CLOSE_ERROR) and 5C6-00F20046 (CSQ2_QCP1_CLOSE_ERROR) by CSQ2QCP0 and CSQ2QCP1 respectively. Message CSQ2004E is also produced, indicating the MQCMITs have failed with MQRC 2124 (MQRC_OUTCOME_PENDING).
Problem conclusion
Processing by the IMS bridge has been updated, to correctly handle the MQRC 2124, MQRC_OUTCOME_PENDING, return code from MQCMITs in the case of loss of CF connectivity, without an abend. 000Y CSQ2QCP0 CSQ2QCP1
Temporary fix
Comments
APAR Information
APAR number
PI38007
Reported component name
WMQ Z/OS 8
Reported component ID
5655W9700
Reported release
000
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2015-03-27
Closed date
2015-11-16
Last modified date
2016-01-04
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UI32981
Modules/Macros
CSQ2QCP0 CSQ2QCP1
Fix information
Fixed component name
WMQ Z/OS 8
Fixed component ID
5655W9700
Applicable component levels
R000 PSY UI32981
UP15/12/15 P F512
Fix is available
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Document Information
Modified date:
04 January 2016