pplies to:Oracle Server - Enterprise Edition - Version: 220.127.116.11 to 18.104.22.168 - Release: 11.1 to 11.2
Information in this document applies to any platform.
Wed Sep 09 03:24:14 2009
LMON (ospid: 31216) waits for event 'control file sequential read' for 88 secs.
Wed Sep 09 03:24:29 2009
Errors in file /oracle/base/diag/rdbms/prod/prod3/trace/prod3_lmhb_31304.trc (incident=2329):
ORA-29770: global enqueue process LMON (OSID 31216) is hung for more than 70 seconds
Incident details in: /oracle/base/diag/rdbms/prod/prod3/incident/incdir_2329/prod3_lmhb_31304_i2329.trc
Wed Sep 09 03:24:39 2009
ERROR: Some process(s) is not making progress.
LMHB (ospid: 31304) is terminating the instance.
ORA-1092 : opitsk aborting process
Mon Jan 10 14:23:00 2011
LMON (ospid: 8594) waits for event 'control file sequential read' for 87 secs.
Mon Jan 10 14:23:31 2011
LMON (ospid: 8594) waits for event 'control file sequential read' for 118 secs.
ERROR: LMON is not healthy and has no heartbeat.
ERROR: LM** (ospid: 8614) is terminating the instance.
default threshold of 70 seconds as it's waiting for control file IO, library cache or row cache waits which could take longer time.
Fix for bug 8888434 is included in 22.214.171.124, LMHB will not terminate critical RAC background processes if they are waiting for the mentioned events for too long
Fix for bug 11890804 is included in 126.96.36.199, without the fix, LMHB may immediately kill processes that has exceeded the timeout but went into another