APAR status
Closed as program error.
Error description
The following FDC is getting generated continuously. There is no harm to product functionality, but the record uses unwanted quantities of disk space under /var/mqm/errors. Probe Id :- RM702021 Component :- rrmCheckSubsForQMgr Program Name :- amqrrmfa Comment1 :- Missing subscription MQM Function Stack ends with: rrmMaintainClqMgr rrmCheckSubsForQMgr xcsFFST
Local fix
Problem summary
**************************************************************** USERS AFFECTED: Only users who see this FDC should be concerned. No functional problem arises from this situation. Applications continue to work ok. But the FDCs are quite large and will be written every hour, eventually filling the file system in which /var/mqm/errors is placed. Platforms affected: MultiPlatform **************************************************************** PROBLEM DESCRIPTION: A certain sequence of creation of manually-defined CLUSSDR channels in a multi-cluster scenario, causes the immediate appearance of one of these FDCs, then a repeated appearance every hour. The necessary conditions are: - a CLUSRCVR must be defined on a Partial Repository queue manager, which then flows to a Full Repository queue manager. - the CLUSRCVR channel is in multiple clusters. - for at least one of these clusters, the recipient is a Full Repository for that cluster. - for at least one of these clusters, the recipient is not a Full Repository for that cluster. - the recipient queue manager has at least one manually-defined CLUSSDR that points to the Partial Repository queue manager. In this scenario MQ has failed to store a necessary flag, and the state is incorrect. The FDC was correctly reporting the incorrect state.
Problem conclusion
The FDC was correctly reporting an invalid state stored some short time beforehand. The MQ code has been corrected so that the correct state is stored with the object on the recipient queue manager in the above scenario. If you are already seeing these FDCs, note that, after applying a fix for this issue, the FDCs will not immediately cease to be written. To stop them being written, you will need to install a fix for this issue on the local queue manager, then visit the remote queue manager, and issue a REFRESH CLUSTER for just the one cluster named in the FDC. The remote queue manager name and channel name appear in the first dump area, which is beneath the text: ""Failing Qmgr record"" The cluster name appears in the second dump area, which is beneath the text: "Failing Clus record". --------------------------------------------------------------- The fix is targeted for delivery in the following PTFs: Version Maintenance Level v8.0 8.0.0.9 v9.0 CD 9.0.5 v9.0 LTS 9.0.0.4 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
IT20685
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
2017-05-19
Closed date
2018-01-12
Last modified date
2021-03-25
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
PI92380 412AC3 IT36360
Fix information
Fixed component name
WMQ BASE MULTIP
Fixed component ID
5724H7251
Applicable component levels
[{"Line of Business":{"code":"LOB45","label":"Automation"},"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSYHRD","label":"IBM MQ"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"8.0.0.0"}]
Document Information
Modified date:
26 March 2021