PM82444: APC maintenance mode improvements.

8.5.0.2: WebSphere Application Server V8.5 Fix Pack 2

APAR status

• Closed as program error.

Error description

• 1) Aftering linking cells, APC may incorrectly place nodes from
  the point cell(s) into maintenance mode.
  2) If a node fails to go into maintenance mode, then all of
  the nodes on the server may not revert back to their original
  state.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  Administrators performing initial           *
  *                  multi-cell setup or users of node           *
  *                  maintenance mode.                           *
  ****************************************************************
  * PROBLEM DESCRIPTION: The node maintenance mode does not      *
  *                      revert all servers to normal state if   *
  *                      the node maintenance mode fails.        *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  1) After linking cells, the application placement controller
  (APC) incorrectly places nodes from the point cells into
  maintenance mode. The nodes are in normal state in the
  administrative console, but in apc.log, the nodes are in
  maintenance mode.
  2) If a replacement server fails to start during node
  maintenance mode, then APC allows the node to go into
  maintenance mode.  This should not be allowed because this can
  lead to a dynamic cluster not having enough active members to
  meet the required number of minimum instances.
  

Problem conclusion

• For WebSphere Virtual Enterprise Version 7.0, this code change
  is targeted for the next available fix pack.
  For WebSphere Application Server Version 8.5, this code change
  is targeted for the next available fix pack.
  
  Refer to the Recommended updates page for delivery
  information:
  http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

  PM78094

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  WEBS APP SERV N

• Fixed component ID

  5724H8800

Applicable component levels

• R850 PSY

     UP