PM56694: Clients are unable to access the grid after restarting a container.

APAR status

• Closed as program error.

Error description

• WebSphere eXtreme Scale clients throw ReadOnlyException
  exceptions with the following message:
  
  Cannot perform update operations on a ReadOnly or replica map.
  
  This message might be thrown when a client attempts to update
  any map.
  

Local fix

• N/A
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of WebSphere eXtreme Scale        *
  ****************************************************************
  * PROBLEM DESCRIPTION: WebSphere eXtreme Scale clients throw   *
  *                      ReadOnlyException exceptions when a     *
  *                      client attempts to update any map.      *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  When the BackingMap is configured with an evictor and
  CopyMode.COPY_TO_BYTES, there is at least one synchronous
  replica, and the value object (the value being cached) is not
  present in the container server classpath, the replica
  incorrectly attempts to inflate your data object,
  resulting in the ClassNotFoundException exception on the
  replica server, which might manifest in other exceptions to the
  client.
  

Problem conclusion

• Applying the fix resolves the error.
  

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

  WS EXTREME SCAL

• Fixed component ID

  5724X6702

Applicable component levels

• R711 PSY

     UP