IT36878: OPTION FOR IMMEDIATE FAILOVER OF MULTI-INSTANCE BROKER

APAR status

• Closed as program error.

Error description

• If the Queue manager associated with a multi-instance
  integration node goes down then the standby Queue manager in the
  secondary node immediately become active. The integration node
  running as the active instance detects that the QueueManager is
  down and so it attempts to stop all the integration servers
  associated with it and once all the integration servers stops
  the fail over completes. An integration server get stopped only
  after all the active transactions of the message flows
  completes. In some scenarios an active transaction can take a
  very long time preventing the fail over to complete on time.
  

Local fix

Problem summary

• ****************************************************************
  USERS AFFECTED:
  All users of IBM App Connect Enterprise V11.0 and V12.0 using
  the multi-instance integration nodes.
  
  
  Platforms affected:
  MultiPlatform
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  If the Queue manager associated with a multi-instance
  integration node goes down then the standby Queue manager in the
  secondary node immediately become active. The integration node
  running as the active instance detects that the QueueManager is
  down and so it attempts to stop all the integration servers
  associated with it and once all the integration servers stops
  the fail over completes. An integration server get stopped only
  after all the active transactions of the message flows
  completes. In some scenarios an active transaction can take a
  very long time preventing the fail over to complete on time.
  

Problem conclusion

• The product now provides an option for immediate fail over of
  mulit-instance broker under an environment variable
  'MQSI_IMMEDIATE_FAILOVER'. Once this environment variable is
  set, mulit-instance broker get failed over immediately.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v11.0      11.0.0.14
  v12.0      12.0.2.0
  
  The latest available maintenance can be obtained from:
  http://www-01.ibm.com/support/docview.wss?rs=849&uid=swg27006041
  
  If the maintenance level is not yet available,information on
  its planned availability can be found on:
  http://www-1.ibm.com/support/docview.wss?rs=849&uid=swg27006308
  ---------------------------------------------------------------
  

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

  APP CONNECT ENT

• Fixed component ID

  5724J0550

Applicable component levels