PH20059: FIXED WEIGHT NOT SAVED AFTER UNQUIESCE IN STANDBY MODE

8.5.5.17: WebSphere Application Server V8.5.5 Fix Pack 17
9.0.5.3: WebSphere Application Server traditional Version 9.0.5 Fix Pack 3

APAR status

• Closed as program error.

Error description

• Set "weight 1" and "fixedweight yes" in the standby mode LB,
  and use "manager quiesce" to quiesce the server.
  
  Execution
  command:
  dscontrol server set
  CLUSTER_ADDRESS@PORT_NUMBER@SERVER_ADDRESS weight 1
  dscontrol
  server set CLUSTER_ADDRESS@PORT_NUMBER@SERVER_ADDRESS
  fixedweight yes
  dscontrol manager quiesce
  CLUSTER_ADDRESS@PORT_NUMBER@SERVER_ADDRESS
  
  When you unquiesce
  with "maneger unquiesce", the server weight is set to the
  default value.
  The weight does not change even if LB is taken
  over to change from standby mode to active mode.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  IBM WebSphere Application Server Load       *
  *                  Balancer for IPv4 and IPv6 users with high  *
  *                  availability configured                     *
  ****************************************************************
  * PROBLEM DESCRIPTION: With fixed weights on the standby LB,   *
  *                      if the server is unquiesce, the         *
  *                      fixed weight value will be lost.        *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  The manager does not run on the standby LB. When a server is
  quiesced, the fixed weight value is saved by the manager but
  since it is not running on the standby, it is not saved and
  therefore not restored when the server is unquiesced.
  

Problem conclusion

• Modified code to save the fixed weight value outside of the
  manager code so that the value is retained on the standby LB
  when the server is quiesced and then unquiesced.
  
  Fix levels:
     8.5.5.17
     9.0.5.3
  

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 EDGE LB IPV4

• Fixed component ID

  5724H8812

Applicable component levels

• R850 PSY

     UP

• R900 PSY

     UP