A fix is available
APAR status
Closed as program error.
Error description
An indoubt XA UOW can be incorrectly committed during svrconn channel disconnection.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: * * All users of IBM MQ for z/OS Version 9 Release 0 * * Modification 0. * **************************************************************** * PROBLEM DESCRIPTION: * * When a SVRCONN is being stopped after XA work has been * * performed using it, during the disconnect processing, * * messages may be incorrectly committed to the queue. * **************************************************************** * RECOMMENDATION: * **************************************************************** When an XA client has previously prepared an XA transaction branch, and issues a XA_CLOSE and disconnects, MQ incorrectly identifies the state of the transaction state. This leads to MQ incorrectly committing the MQ work associated with the XA transaction branch during the disconnect processing.
Problem conclusion
Processing in this scenario has been corrected, to correctly identify the state of the XA transaction branch during disconnect processing, to ensure the MQ work under the XA branch is not incorrectly committed.
Temporary fix
Comments
APAR Information
APAR number
PI73712
Reported component name
MQ Z/OS V9
Reported component ID
5655MQ900
Reported release
000
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2016-12-14
Closed date
2017-02-13
Last modified date
2017-04-04
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UI44606
Modules/Macros
CMQXRSRV none
Fix information
Fixed component name
MQ Z/OS V9
Fixed component ID
5655MQ900
Applicable component levels
R000 PSY UI44606
UP17/04/04 P F703
Fix is available
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Document Information
Modified date:
04 April 2017