PM50931: syncreplica import produces Nonsequential oplog ids detected

Rational ClearCase Fix Pack (7.1.2.5) for version 7.1.2
Rational ClearCase Fix Pack (8.0.0.1) for version 8.0
Rational ClearCase Fix Pack 14 (7.1.2.14) for 7.1.2
Rational ClearCase Fix Pack 11 (8.0.0.11) for 8.0
Rational ClearCase Fix Pack 12 (8.0.0.12) for 8.0
Rational ClearCase Fix Pack 15 (7.1.2.15) for 7.1.2
Rational ClearCase Fix Pack 13 (8.0.0.13) for 8.0
Rational ClearCase Fix Pack 16 (7.1.2.16) for 7.1.2
Rational ClearCase Fix Pack 17 (7.1.2.17) for 7.1.2
Rational ClearCase Fix Pack 14 (8.0.0.14) for 8.0
Rational ClearCase Fix Pack 18 (7.1.2.18) for 7.1.2
Rational ClearCase Fix Pack 15 (8.0.0.15) for 8.0
Rational ClearCase Fix Pack 19 (7.1.2.19) for 7.1.2
Rational ClearCase Fix Pack 16 (8.0.0.16) for 8.0
Rational ClearCase Fix Pack 17 (8.0.0.17) for 8.0
Rational ClearCase Fix Pack 18 (8.0.0.18) for 8.0
Rational ClearCase Fix Pack 19 (8.0.0.19) for 8.0
Rational ClearCase Fix Pack 20 (8.0.0.20) for 8.0
Rational ClearCase Fix Pack 21 (8.0.0.21) for 8.0

APAR status

• Closed as program error.

Error description

• IBM Rational ClearCase MultiSite import produces an error,
  Nonsequential oplog ids detected, even though the oplog exists
  and is in the correct order.
  
  multitool: Error: Nonsequential oplog ids detected: expected
  this oplog id to be 27.
  The previous oplog id from the replica is 26.
  multitool: Error: Unable to replay oplog entry 60: error
  detected by ClearCase subsystem.
  60:
  op=mklabel
  replica_oid= XYZ (RemoteReplica)
  oplog_id= 25
  op_time= 2011-10-18T07:39:07Z  create_time= 2011-10-18T07:39:07Z
  event comment= 'Moved label
  
  
  Verifying the problem:
  In general this error should not occur on import. Just seeing
  this error indicates the likelihood that you are experiencing
  this defect.
  
  To confirm:
  1)  Note the failing oplog id from the error message
  (oplog_id=25) as well as the replica associated with that oplog
  replica_oid= XYX (RemoteReplica)
  
  2)  Run multitool lsepoch ?local replica name?
  
  3)  Verify that the oplog ID associated with the replica listed
  in the error is only one oplog behind the oplog listed in the
  error.
  
  Example:
  lsepoch Myreplica
  Oplog IDs for row 'Myreplica'
  ABC=xyz (Myreplica)
  XYZ=24 (RemoteReplica)
  Note that the problem replica has the expected oplog.
  
  
  WORKAROUND
  
  Generate a syncreplica packet where the last entry is the
  'previous oplog id' mentioned in the error message.
  
  This is most easily done on a 7.1.x VOB server that has the
  required oplog entries, using the '-oprange' argument.
  
  Using the example:
  syncreplica import returns error: Nonsequential oplog ids
  detected
  
  multitool: Error: Nonsequential oplog ids detected: expected
  this oplog id to be 27.
  The previous oplog id from the replica is 26.
  multitool: Error: Unable to replay oplog entry 60: error
  detected by ClearCase subsystem.
  60:
  op=mklabel
  replica_oid= XYZ (RemoteReplica)
  oplog_id= 25
  op_time= 2011-10-18T07:39:07Z  create_time= 2011-10-18T07:39:07Z
  event comment= 'Moved label'
  
  Do the command:
  multitool syncreplica -export -fship -oprange
  RemoteReplica=25:26  [target-replica]
  
  This does NOT have to be done AT 'RemoteReplica'; it can be, OR
  it can be done at any replica that has successfully imported
  these oplog entries.
  
  Notes:
  'RemoteReplica' taken from line beginning 'replica_oid='
  '25' taken from line beginning 'oplog_id='
  '26' taken from line beginning 'The previous oplog id from the
  replica is'
  
  The range required may be more than 2 oplog entries.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
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  * RECOMMENDATION:                                              *
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  IBM Rational ClearCase MultiSite import produces an error,
  Nonsequential oplog ids detected, even though the oplog
  exists and is in the correct order.
  

Problem conclusion

• A fix is available in ClearCase versions 7.1.2.5 and 8.0.0.1
  

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:

Fix information

• Fixed component name

  CLRCASE MSITE U

• Fixed component ID

  5724G3201

Applicable component levels

• R712 PSN

     UP