JR49088: CMVC 233978 - Invalidation of the MemberGroupsCacheCmdImpl cacheable command after transaction commits.

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
WebSphere Commerce Version 7.0.0.9 Fix Pack

APAR status

• Closed as program error.

Error description

• If custom code causes a user to register and be added to a
  member group in the same transaction, the invalidation of the
  MemberGroupsCacheCmdImpl cacheable command cache occurs before
  the curent transaction commits.  If there is another transaction
   that is using the cache before the transaction commits, then it
   will see the previous data in the database and re-create the
  cache with old data.
  Example of scenario:
  User adds items to cart, then user registers and is added to a
  group that should see specific espots.  The cache is not
  re-created with the
  new data thus the user does not see the specific espots.  They
  must clear the cache or logout/login to see the espots.
  

Local fix

Problem summary

• USERS AFFECTED:
  WebSphere Commerce version 7 customers who have custom code that
  changes group membership and uses the previously cached results
  prior to committing the transaction, to display specific data to
  customer (ie , promotions, espots,etc).
  
  PROBLEM ABSTRACT:
  Invalidation of the MemberGroupsCacheCmdImpl cacheable command
  after transaction commits.
  
  BUSINESS IMPACT:
  Prevent users from seeing specific data associated with group to
  which they were added.
  
  RECOMMENDATION:
  

Problem conclusion

• The AddMemberGroupMemberCmdImpl and
  DeleteMemberGroupMemberCmdImpl now issue an additional
  invalidation id to the baseCache after the transaction they are
  running in commits.  The invalidation id has the form
  "DC_userId:nnnnn", where "nnnnn" is the userId returned by the
  getMemberId method of the command.  This additional invalidation
   id is a duplicate of one specified in the
  InitializationServlet.war/WEB-INF/cachespec.xml file, which is
  issued before the transaction commits.
  
  -------------------------------------------------------------
  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 EDITION

• Fixed component ID

  5724I3800

Applicable component levels

• R700 PSY

     UP