IT32409: AMQ6546E error reported when creating an HA-DR secondary withoutusing floating IP

APAR status

• Closed as program error.

Error description

• AMQ6546E error reported when creating a HA-DR secondary without
  using floating IP
  
  The MQ 9.1.5 Appliance firmware adds support for creating a DR
  secondary for an HA appliance pair without defining a floating
  IP address.
  
  When attempting to establish this configuration, an AMQ6546E
  error is incorrectly reported:
  
  # crtdrsecondary -m qm2 -s 1024 -l vm01,vm02 -i
  192.168.1.1,192.168.1.2 -p 1502
  AMQ6546E: An internal IBM MQ Appliance error has occurred.
  

Local fix

Problem summary

• ****************************************************************
  USERS AFFECTED:
  This APAR affects users who create DR/HA queue managers on the
  MQ Appliance that do not use a floating IP address for the DR
  replication.
  Without this APAR it is only possible to create one of these
  queue managers.
  
  
  Platforms affected:
  MultiPlatform
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  The replication subsystem on the DR appliance needs to be given
  a single IP address and port to use for its remote connection to
  the HA group.
  
  With floating IP, the DR replication connection can be
  established in either direction.
  The IP address used for the remote connection on the DR
  appliance is the DR replication floating IP address.
  The port used is the DR port for the queue manager.
  
  Without floating IP, the DR replication connection is always
  established from the HA group to the DR appliance.
  A dummy IP address and port are used for the remote connection
  on the DR appliance.
  The IP address used is the IP address of the local DR
  replication interface.
  The port used is a unique reserved port on this interface.
  
  The problem was that a unique port was not being generated
  within the internal MQ DR configuration scripts, which meant the
  replication subsystem rejected the creation of the second DR/HA
  queue manager.
  

Problem conclusion

• The code that generates the IP address and port to use for the
  remote connection on the DR appliance has been updated.
  A unique reserved port is now generated for each DR/HA queue
  manager that does not use a floating IP address for DR
  replication.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v9.x CD    TBC.
  
  The latest available maintenance can be obtained from
  'WebSphere MQ Recommended Fixes'
  http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006037
  
  If the maintenance level is not yet available information on
  its planned availability can be found in 'WebSphere MQ
  Planned Maintenance Release Dates'
  http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006309
  ---------------------------------------------------------------
  

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

  IBM MQ BASE MP

• Fixed component ID

  5724H7271

Applicable component levels