APAR status
Closed as program error.
Error description
The WebSphere eXtreme Scale container log files contain thousands of occurrances of the message "CWOBJ7663W: Near-cache invalidation notification has been disconnected for grid <gridname>, map <mapname>, partition <n>, the near cache has been disabled". All grid function otherwise appears normal.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: Users of WebSphere eXtreme Scale that * * require near cache invalidation and dynamic * * maps. * **************************************************************** * PROBLEM DESCRIPTION: Thousands of near-cache invalidation * * notification messages (CWOBJ7663W) * * output to the server logs. * **************************************************************** * RECOMMENDATION: * **************************************************************** When a WebSphere eXtreme Scale configuration includes support for near cache invalidation in addition to the use of dynamic maps (sometimes called template maps), some servers will generate many CWOBJ766W messages. It is important to note that the grid functions as expected when these messages are generated. For the servers that receive these messages, it indicates that there are not yet any transactions for the map indicated in the message. Therefore, the map has not yet dynamically been created on that server. The result is that near cache invalidation is disconnected from the map in question, and that server attempts to try again later. The server continues to retry the cache invalidation processing for the map. The message repeats until the dynamic map is created. When the dynamic map gets created, the near cache invalidation connection to the map is re-established.
Problem conclusion
The near cache invalidation process incorrectly expected that all dynamic maps are created on all servers immediately. This error is corrected.
Temporary fix
Comments
APAR Information
APAR number
PM96581
Reported component name
WS EXTREME SCAL
Reported component ID
5724X6702
Reported release
860
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2013-09-06
Closed date
2013-09-13
Last modified date
2013-09-13
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
WS EXTREME SCAL
Fixed component ID
5724X6702
Applicable component levels
R860 PSY
UP
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Document Information
Modified date:
13 September 2013