PI61562: UNDER CERTAIN RARE CONCURRENT CONDITIONS, A LOG RECORD RECEIVED FROM THE DB2 IFI MAY BE SKIPPED.

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• If two boundary conditions for preparing DB2 Log data for
  grouping into UoRs should happen concurrently, it is possible
  that a DB2 Log record can be skipped.
  The following error message is received
  CHC1528E A UR Control Record sequencing error has been detected,
  Record subtype
  subtype set indicators = X'00000000', URID =
  00000000001CBF0148530002
  CHC1522E An error occurred accessing the Staging Space.
  Mirroring will terminate
  

Local fix

• None Available
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: Users of IIDR CDC for z/OS.                  *
  ****************************************************************
  * PROBLEM DESCRIPTION: Occasionally, under certain conditions, *
  *                      usually in combination with use of the  *
  *                      Log Data Cache feature, there is a      *
  *                      very small probability that a single    *
  *                      record may be skipped while replicating *
  *                      data.  If the record is a UR Control    *
  *                      Record, then message CHC1528E will be   *
  *                      issued.                                 *
  ****************************************************************
  * RECOMMENDATION: APPLY CORRECTIVE SERVICE                     *
  ****************************************************************
  
  There is a very small probability that a record that should be
  processed during replication may be skipped.
  

Problem conclusion

• Logic that enables the condition that would allow a record to be
  skipped has been modified to eliminate the possibility.
  

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:

  UI42181

Modules/Macros

• CHCDLPPF CHCDLRGP CHCDSLGP CHCDSLPF CHCDSNW  CHCLCCDL CHCLGPDL
  

Fix information

• Fixed component name

  INFO SRVR CDC Z

• Fixed component ID

  5655U7600

Applicable component levels

• RA21 PSY UI42181

     UP16/11/07 P F611

Fix is available

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