Fixes are available
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
VOB shared memory mutex never recovers and database processes loop in db_VISTA -926 timed out waiting for lock ClearCase 7.1.2.x VOB Storage stored on a NAS Device RedHat 5 Update 5 and Update 6 Symptoms: When using a VOB server on RedHat with NAS storage, the following may be seen within the db_server or vobrpc_server logs if a specific VOB becomes unresponsive: db_server(*****): Ok: CRRDM0532I Rollforward recovery using ?/ccstg/vobs/test.vbs/db/vista.tjf? started Mon Jun 13 12:31:12 2011 db_server(*****): Ok: db_server(*****): Ok: CRRDM0605I Rollforward recovery using ?/ccstg/vobs/test.vbs/db/vista.tjf? finished Mon Jun 13 12:31:12 2011 db_server(*****): Ok: . . 2011-06-14T00:36:09+05:30 db_server(*****): Ok: CRRDM0656E *** db_VISTA database error -926 - problem in shared memory lock manager: Process 2291 timed out waiting for lock. 2011-06-14T00:36:09+05:30 db_server(*****): Ok: Timeout getting lock in VOB ?/ccstg/vobs/test.vbs/db?. . . 2011-06-14T00:41:09+05:30 db_server(*****): Ok: CRRDM0656E *** db_VISTA database error -926 - problem in shared memory lock manager: Process 2291 timed out waiting for lock. 2011-06-14T00:41:09+05:30 db_server(*****): Ok: Timeout getting lock in VOB ?/ccstg/vobs/test.vbs/db?. The error message above repeats every 5 minutes for the same server process, and never recovers. The VOB indicated within the message will not respond to any cleartool commands during this period of time. Workaround: None
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: * **************************************************************** * PROBLEM DESCRIPTION: * **************************************************************** * RECOMMENDATION: * **************************************************************** VOB shared memory mutex never recovers and database processes loop in db_VISTA -926 timed out waiting for lock ClearCase 7.1.2.x VOB Storage stored on a NAS Device RedHat 5 Update 5 and Update 6 Symptoms: When using a VOB server on RedHat with NAS storage, the following may be seen within the db_server or vobrpc_server logs if a specific VOB becomes unresponsive: db_server(*****): Ok: CRRDM0532I Rollforward recovery using ?/ccstg/vobs/test.vbs/db/vista.tjf? started Mon Jun 13 12:31:12 2011 db_server(*****): Ok: db_server(*****): Ok: CRRDM0605I Rollforward recovery using ?/ccstg/vobs/test.vbs/db/vista.tjf? finished Mon Jun 13 12:31:12 2011 db_server(*****): Ok: . . 2011-06-14T00:36:09+05:30 db_server(*****): Ok: CRRDM0656E *** db_VISTA database error -926 - problem in shared memory lock manager: Process 2291 timed out waiting for lock. 2011-06-14T00:36:09+05:30 db_server(*****): Ok: Timeout getting lock in VOB ?/ccstg/vobs/test.vbs/db?. . . 2011-06-14T00:41:09+05:30 db_server(*****): Ok: CRRDM0656E *** db_VISTA database error -926 - problem in shared memory lock manager: Process 2291 timed out waiting for lock. 2011-06-14T00:41:09+05:30 db_server(*****): Ok: Timeout getting lock in VOB ?/ccstg/vobs/test.vbs/db?. The error message above repeats every 5 minutes for the same server process, and never recovers. The VOB indicated within the message will not respond to any cleartool commands during this period of time. Workaround: None
Problem conclusion
A fix is available in ClearCase versions 7.1.1.8, 7.1.2.5 and 8.0.0.1
Temporary fix
Comments
APAR Information
APAR number
PM42345
Reported component name
CLEARCASE UNIX
Reported component ID
5724G2901
Reported release
712
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2011-06-23
Closed date
2011-12-16
Last modified date
2011-12-16
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
CLEARCASE UNIX
Fixed component ID
5724G2901
Applicable component levels
R712 PSN
UP
Document Information
Modified date:
16 December 2011