IT14620: Channel auth rule type(blockaddr) and warn(yes) on svrconn channel generates AMQ9509 AMQ9214

APAR status

• Closed as program error.

Error description

• An IBM MQ SVRCONN channel fails with the following error when a
  CHLAUTH rule is defined with TYPE(BLOCKADDR) and WARN(YES).
  
  AMQ9509: Program cannot open queue manager object.
  EXPLANATION:
  The attempt to open either the queue or queue manager object
  'XXX' on queue manager 'XXX' failed with reason code 2018.
  
  
  AMQ9214: Attempt to use an unsupported communications protocol.
  EXPLANATION:An attempt was made to use an unsupported
  communications protocol type 0
  
  
  The above error is not reported with a generic ADDRESSMAP and
  BLOCKUSER.
  

Local fix

Problem summary

• ****************************************************************
  USERS AFFECTED:
  Users of the CHLAUTH facility who are using the BLOCKADDR
  CHLAUTH type with WARN set to YES may be affected by this
  problem.
  
  
  Platforms affected:
  MultiPlatform
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  When attempting to write a channel blocked event to the
  SYSTEM.ADMIN.CHANNEL.EVENT queue, IBM MQ first checks whether
  these events are enabled by querying the queue manager object.
   It was possible for BLOCKADDR type authentication to occur
  before the appropriate internal state information had been
  obtained, which caused the MQOPEN of the queue manager object to
  fail with an MQRC_HCONN_ERROR.
  

Problem conclusion

• The MQ queue manager code has been modified to detect the timing
  condition that lead MQRC_HCONN_ERROR, in order to avoid querying
  internal state information until after the MQOPEN of the queue
  manager object has completed successfully.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v7.5       7.5.0.8
  v8.0       8.0.0.6
  v9.0 CD    9.0.1
  v9.0 LTS   9.0.0.1
  
  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:

  PI66546

Fix information

• Fixed component name

  WMQ BASE MULTIP

• Fixed component ID

  5724H7241

Applicable component levels