PH57603: ALLOW LOAD BALANCER HIGH AVAILABILITY MONITOR INTERVAL TO BE SET IN MILLISECONDS

APAR status

• Closed as new function.

Error description

• The Load Balancer high availability state is controlled in the
  executor code. The dsserver process queries the status based
  off the highavailability interval setting that is defined in
  seconds. The interval should allow for milliseconds to
  maintain accurate status.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  IBM WebSphere Load Balancer users with      *
  *                  LB high availability configured             *
  ****************************************************************
  * PROBLEM DESCRIPTION: The Load Balancer server does not       *
  *                      obtain the high availability status     *
  *                      in a timely fashion.                    *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  The Load Balancer server obtains the current high availability
  status from Load Balancer's executor code every 3 seconds.
  High availability heartbeats occur every 0.5 seconds and the
  high availability status can change every 0.5 second. The
  server needs to query the status more frequently to provide
  accurate status.
  

Problem conclusion

• The interval to query the high availability status was
  modified to use milliseconds instead of seconds. Status
  queries occur on a 250ms interval.
  
  This value can be modified by setting the custom property
  LB_HA_INTERVAL=new_value where the new_value is expressed as
  milliseconds (1 second = 1000 milliseconds).
  
  Fix levels:
     8.5.5.25
     9.0.5.19
  

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