PH47996: ENHANCEMENTS TO SUPPORT PASSING XID TO DB2, NEEDS A LARGE ENOUGHAREA OF STORAGE TO ACCOMMODATE THE XID BEING PASSED BACK BY RRS

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Support for passing XID to Db2 added at CICS TS 5.5 is not
  working as expected.
  

Local fix

• no local fix
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS Users.                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: CICS-Db2 attach will query MVS RRS to   *
  *                      obtain an XID and may see an increase   *
  *                      in RRS CPU time.                        *
  ****************************************************************
  CICS-Db2 Attach will query MVS RRS to see if a unit of work was
  initiated from outside CICS and is being coordinated by MVS RRS
  to obtain an XID.
  You may seen an increase in RRS CPU time. This is because the
  ATRQUERY issued by CICS was sent to all systems in the sysplex
  regardless of their RRS logging group.
  

Problem conclusion

• The ATRQUERY issued by CICS has been amended to remove the GNAME
  parameter so that it defaults to querying systems with the same
  RRS logging group as the current system.
  

Temporary fix

Comments

APAR Information

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

  PH39766

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

  UI81588

Modules/Macros

• DFHD2EX1
  

Fix information

• Fixed component name

  CICS TS Z/OS V6

• Fixed component ID

  5655YA100

Applicable component levels

• R400 PSY UI81588

     UP22/07/22 P F207

Fix is available

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