PH67051: New message DSNL062I for failure with 00D30113 rsncode

Obtain the fix for this APAR.

APAR status

• Closed as new function.

Error description

• New message DSNL062I for DDF processing failures with
  '00D30113'X reason-code values
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: All Distributed Data Facility (DDF) users.   *
  ****************************************************************
  * PROBLEM DESCRIPTION: This APAR adds a new message DSNL062I   *
  *                      to specifically report DDF processing   *
  *                      failures with '00D30113'X reason-code   *
  *                      values at a minimal interval of 5       *
  *                      minutes for each unique combination     *
  *                      of the module name, reason code, user   *
  *                      ID and IP address.                      *
  ****************************************************************
  When applications lack proper error handling and keep
  attempting to connect Db2 for z/OS server using an invalid
  user ID that exceeds eight characters in length, the z/OS
  console can be flooded with DSNL030I failure message with
  reason code '00D30113'X.
  
  This situation can potentially cause the Db2 MSTR address
  space to abnormally terminate if the system reaches the
  maximum number of lines.
  
  Instead of issuing the DSNL030I message to the z/OS console
  for every error event with an invalid-length user ID and
  potentially flooding the z/OS console, this enhancement will
  introduce a new message DSNL062I, which will specifically
  report errors with '00D30113'X reason-code values.
  
  In addition, IFCID 83 has been enhanced to record scenarios
  including the original invalid-length user ID where the
  connection is denied by DDF with reason code '00D30113'X.
  

Problem conclusion

Temporary fix

Comments

• The DSNL062I message will be issued at a minimal interval of
  5 minutes for each unique combination of the module name,
  reason code, user ID and IP address.
  
  This helps to reduce the risk of message flooding on the z/OS
  console and the chance of Db2 MSTR address space breakdown.
  
  In the meantime, both z/OS system administrators and Db2
  database administrators can more easily monitor DSNL062I
  messages and respond to other important system messages.
  
  Additionally, the enhanced IFCID 83 provides improved
  diagnostic capabilities for DDF-side processing failures
  that occur prior to invoking the security server.
  

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

  UO05130

Modules/Macros

• DSNDQW01 DSNFCDIR DSNFLDIR DSNLDTMG DSNLDUMP DSNLJEMG DSNLJTIN
  DSNLTDT3 DSNLTSEC DSNLTSTR DSNWDFDI
  

Fix information

• Fixed component name

  DB2 OS/390 & Z/

• Fixed component ID

  5740XYR00

Applicable component levels

• RD10 PSY UO05130

     UP25/10/04 P F510  

Fix is available

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