DWW0557S

A gap is encountered when switching logs and reading backward. Record nn2 on log dddd2 precedes record nn1 on log dddd1. Processing terminates.

A sequence number gap was found between two label records when switching logs; the sequence numbers are not in sequence. The records are in the correct time sequence. That is, record nn1, which is the last record on log dddd1, has an earlier time stamp than record nn2, which is the first record on log dddd2. This message could mean that records needed for backout are missing. Some possible causes are:
  • A log was omitted when specifying the logs to CICS® VR, or logs are specified in the wrong order.
  • A log was skipped during archiving.
  • Label records were skipped over by a selective archiving program; records needed for backout might also be skipped.
  • The journal archive control data set (JACD) is damaged or inaccessible, causing the wrong sequence numbers to be used on label records.
  • A log had data other than log records.
This message is issued if you specified:
  • The SEQCHKR GAPINSEQUENCE(STOP) command
  • STOP in the sequence checking secondary window
  • No option in the gap in sequence field of the sequence checking secondary window

CICS® VR stops the backout and prints the reports.

  • Batch–If a log was missing, archive this log and rerun CICS® VR.

    If all logs are present, find out why there is a gap in the label records. (Check the contents of the log to see whether all records needed for backout are present.) Correct the error and rerun CICS® VR.

    If you want to accept the error message and run CICS® VR, specify either of these commands:

    SEQCHKL GAPINSEQUENCE(WARNING)    
    SEQCHKL GAPINSEQUENCE(IGNORE)

    Remember to restore the VSAM data sets from the backup copies before you rerun CICS® VR.

  • Online–If a log was missing, archive this log and rerun CICS® VR.

    If all logs are present, find out why there is a gap in the label records. (Check the contents of the log to see whether all records needed for backout are present.) Correct the error and rerun CICS® VR.

    If you want to accept the error message and run CICS® VR, specify either WARNING or IGNORE in the sequence checking secondary window.

    Remember to restore the VSAM data sets from the backup copies before you resubmit the recovery job.