APAR status
Closed as program error.
Error description
If MQ subscriber applications publish messages which use complex subscription selectors, then the time taken to evaluate the selector also increases as the number of logical conditions increases, causing an increasing delay in the MQPUT call. The performance impact depends on the number of selectors, subscribers and the complexity of the selectors.
Local fix
Problem summary
**************************************************************** USERS AFFECTED: Users of IBM MQ v8 or v9 using complex message selectors. Platforms affected: MultiPlatform **************************************************************** PROBLEM DESCRIPTION: Inefficiencies in the message selection evaluation algorithms for IBM MQ version 8 and 9 were identified.
Problem conclusion
MQ selector evaluation code has been modified to improve performance when using complex selectors. --------------------------------------------------------------- The fix is targeted for delivery in the following PTFs: Version Maintenance Level v8.0 8.0.0.7 v9.0 CD 9.0.3 v9.0 LTS 9.0.0.1 The latest available maintenance can be obtained from 'WebSphere MQ Recommended Fixes' http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006037 If the maintenance level is not yet available information on its planned availability can be found in 'WebSphere MQ Planned Maintenance Release Dates' http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006309 ---------------------------------------------------------------
Temporary fix
Comments
APAR Information
APAR number
IT19661
Reported component name
WMQ BASE MULTIP
Reported component ID
5724H7251
Reported release
800
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2017-03-13
Closed date
2017-03-16
Last modified date
2017-06-01
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
WMQ BASE MULTIP
Fixed component ID
5724H7251
Applicable component levels
R800 PSY
UP
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Document Information
Modified date:
01 June 2017