PI72025: CREATING OR DELETING CROSS VOB HLINKS CAN LEAD TO 'DEAD MAN LOCKTIMEOUT' ERROR

Rational ClearCase 9.0.1
Rational ClearCase Fix Pack 15 (8.0.1.15) for 8.0.1
Rational ClearCase Fix Pack 5 (9.0.0.5) for 9.0
Rational ClearCase Fix Pack 1 (9.0.1.1) for 9.0.1
Rational ClearCase Fix Pack 6 (9.0.0.6) for 9.0
Rational ClearCase Fix Pack 2 (9.0.1.2) for 9.0.1
Rational ClearCase Fix Pack 16 (8.0.1.16) for 8.0.1
Rational ClearCase Fix Pack 17 (8.0.1.17) for 8.0.1
Rational ClearCase Fix Pack 3 (9.0.1.3) for 9.0.1
Rational ClearCase Fix Pack 4 (9.0.1.4) for 9.0.1
Rational ClearCase Fix Pack 18 (8.0.1.18) for 8.0.1
Rational ClearCase Fix Pack 5 (9.0.1.5) for 9.0.1
Rational ClearCase Fix Pack 19 (8.0.1.19) for 8.0.1
Rational ClearCase Fix Pack 6 (9.0.1.6) for 9.0.1
Rational ClearCase Fix Pack 20 (8.0.1.20) for 8.0.1
Rational ClearCase Fix Pack 7 (9.0.1.7) for 9.0.1
Rational ClearCase Fix Pack 21 (8.0.1.21) for 8.0.1
Rational ClearCase Fix Pack 8 (9.0.1.8) for 9.0.1
Rational ClearCase Fix Pack 22 (8.0.1.22) for 8.0.1
Rational ClearCase Fix Pack 9 (9.0.1.9) for 9.0.1
Rational ClearCase Fix Pack 23 (8.0.1.23) for 8.0.1
Rational ClearCase Fix Pack 10 (9.0.1.10) for 9.0.1
Rational ClearCase Fix Pack 24 (8.0.1.24) for 8.0.1
Rational ClearCase Fix Pack 11 (9.0.1.11) for 9.0.1
Rational ClearCase Fix Pack 25 (8.0.1.25) for 8.0.1
Rational ClearCase Fix Pack 12 (9.0.1.12) for 9.0.1
Rational ClearCase Fix Pack 13 (9.0.1.13) for 9.0.1

APAR status

• Closed as program error.

Error description

• Creating or deleting hyperlinks that span VOBs (common in a UCM
  setup) in IBM Rational ClearCase can lead to a situation where
  two processes are waiting on each other for a lock on one of the
  VOB databases. This will lead to the Dead Man Lock Timeout to be
  triggered, making one of the two operations to fail.
  Symptoms:
  db_server(14591): Error: Deadman lock timeout.  Client
  "clientA,pid==18769,euid==UNIX:UID-num, No command" idle while
  holding locks.
  db_server(14591): Warning:
  "clientA,pid==18769,euid==UNIX:UID-num, No command" cmd:  db:
  db_arrow_get held for 60 seconds a "r" lock in the usual area in
  <vob-storage>/db!
  
  Workaround:
  Retry the operation
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * Users of ClearCase UCM.                                      *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * Creating or deleting hyperlinks that span VOBs (common in a  *
  * UCM setup) in ClearCase can lead to a situation where two    *
  * processes are waiting on each other for a lock on one of the *
  * VOB databases. This will lead to the Dead Man Lock Timeout   *
  * to be triggered, making one of the two operations to fail.   *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  

Problem conclusion

• A fix is available in ClearCase versions 8.0.1.15, 9.0.0.5 and
  9.0.1.1
  

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

  CC&CC MSITE WIN

• Fixed component ID

  5724G3300

Applicable component levels

• R801 PSY

     UP

• R900 PSY

     UP

• R901 PSY

     UP