JR50131: Possible delay in invalidating WXS Near Caches when using clearall

7.0.0.9 for Developer Express
7.0.0.9 for Developer Professional
7.0.0.9 for Developer Enterprise
7.0.0-WS-WCServer-FP009

APAR status

• Closed as program error.

Error description

• All the Data Cache objects are associated to the WCT+?
  dependency ID. When a cache clear is done, the WCT+?
  invalidation ID is fired and the caching backend (Dynacache or
  WXS) removes all the entries in that cache.
  
   For clients using WXS and the Near Cache function, this
  invalidation is not efficient and it can result in a flood of
  pub-sub traffic between the remote WXS grid and the WCS/WAS
  servers
   to invalidate the individual entries in the Near Cache
  

Local fix

• Cache can be cleared using the Cache Monitor, or for WXS with
  this command: xscmd -c ClearGrid
  

Problem summary

• Possible delay in invalidating WXS Near Caches when using
  clearall
  

Problem conclusion

• The DynaCacheInvalidation Job has been improved so for a
  "clearall", the clear() API is used instead of the WCT+?
  invalidation ID.
  

Temporary fix

Comments

APAR Information

• 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

  WC BUS EDITION

• Fixed component ID

  5724I3800

Applicable component levels

• R700 PSY

     UP