IT29254: XMS Managed .NET application takes several seconds to re-establish a connection with a queue manager after a failover

APAR status

• Closed as program error.

Error description

• XMS Managed .NET application takes up to 4 seconds to connect to
  the queue manager after a failover with multiple connection
  name.
  
  Example: hostname1(1234),hostname2(1235) are connection name
  used.
  
  When hostname1 fails and switched to hostname2 then several
  seconds of delay is observed when trying to connect to
  hostname2.
  

Local fix

Problem summary

• ****************************************************************
  USERS AFFECTED:
  Users using XMS managed .NET application with multiple
  connection names to connect to queue manager. Multiple
  connection names when set in CCDT is also affected.
  
  
  Platforms affected:
  Windows
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  A logic error caused delays when using multiple connection names
  for reconnection, due to unnecessary additional operations when
  the connection name list was processed.
  

Problem conclusion

• The XMS Managed .NET Code has been corrected to improve the
  performance when multiple connection names are used
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v8.0       8.0.0.14
  v9.0 LTS   9.0.0.9
  v9.1 CD    9.1.5
  v9.1 LTS   9.1.0.5
  
  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 APPL M20

• Fixed component ID

  5725S1400

Applicable component levels