JR41545: CMVC 216274 - DISABLE SALES CENTER CUSTOM CACHE.

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

• The WebSphere Commerce Sales Center normally caches customer
  related information in the Dynamic Cache facility, and issues
  customer related invalidation messages to DynaCache when the
  customer related information changes in the database.  When the
  Sales Center is not frequently used, while customer related
  information does frequently change in the database, the
  occasional performance benefits of Sales Center caching may be
  less than the constant slight performance degradation resulting
  from frequent processing of the invalidation messages.
  

Local fix

Problem summary

• USERS AFFECTED:
  WebSphere Commerce users on Version 7.0
  
  PROBLEM ABSTRACT:
  How to turn off Sales Center customer related caching and its
  associated invalidation messages.
  
  BUSINESS IMPACT:
  Slight performance degradation due to frequent processing of
  Sales Center customer related cache invalidation messages.
  
  RECOMMENDATION
  

Problem conclusion

• This fix adds a new wc-server.xml customization tag in the
  InstanceProperties tag.  Add the new tag just after the opening
  InstanceProperties tag, like this:
  
  <InstanceProperties name="Instance Properties">
  
  <com.ibm.commerce.telesales.messaging.bodreply.ShowCustomerCache
  CmdImpl enabled="false"/>
  
  When enabled="false", the ShowCustomerCacheCmdImpl command sets
  its cache expiry to the current time, thus immediately
  invalidating its cache entry, and effectively disabling caching
  for that command.
  
  The commands that normally issue the "Customers" invalidation to
  the baseCache have been changed to not issue it when
  enabled="false".
  
  The Business Context Session data is normally cached in the
  baseCache servlet cache, as specified in the
  InitializationServlet.war/WEB-INF/cachespec.xml file.  Because
  this data is frequently invalidated, a performance improvement
  may sometimes be obtained by instead caching this data in the
  WCSessionDistributedMap object cache.  This may be done by
  removing the cache-entry tag for the
  ContextDataSerValueCacheCmdImpl command from the
  InitializationServlet.war/WEB-INF/cachespec.xml file, and
  defining the WCSessionDistributedMapCache object cache in the
  Stores.war/WEB-INF/classes/cacheinstances.properties file.
  -------------------------------------------------------------
  The latest available maintenance information can be obtained
  from the Recommended Fixes for WebSphere Commerce technote:
  http://www.ibm.com/support/docview.wss?rs=3046&uid=swg21261296
  

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 DEV ED W

• Fixed component ID

  5724I3900

Applicable component levels

• R700 PSY

     UP