APAR status
Closed as program error.
Error description
In a scenario with a very large number (hundreds) of subscribers on a topic using selectors which rarely match publications, a delay in publish time performance is observed.
Local fix
Reduce the use of selectors with subscriptions
Problem summary
**************************************************************** USERS AFFECTED: Users of MQ V9.1 who create hundreds of subscriptions to a topic when all those subscribers use selectors. Platforms affected: MultiPlatform **************************************************************** PROBLEM DESCRIPTION: In this scenario a logic error caused the queue manager to perform character conversion more often than necessary when matching a publication against subscribers that used message selectors.
Problem conclusion
The logic error has been fixed. --------------------------------------------------------------- The fix is targeted for delivery in the following PTFs: Version Maintenance Level v9.1 CD 9.1.4 v9.1 LTS 9.1.0.4 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
IT29738
Reported component name
IBM MQ BASE MP
Reported component ID
5724H7271
Reported release
910
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2019-07-15
Closed date
2019-08-19
Last modified date
2019-08-19
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
IBM MQ BASE MP
Fixed component ID
5724H7271
Applicable component levels
[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSYHRD","label":"IBM MQ"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"910","Edition":"","Line of Business":{"code":"LOB45","label":"Automation"}}]
Document Information
Modified date:
19 August 2019