ORA-29770 LMHB Terminates Instance as LMON Waited for Control File IO or LIBRARY CACHE or ROW CACHE Event for too Long
Last updated on MARCH 19, 2018
Applies to:Oracle Database - 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.
RAC instance crashes with messages like the following:
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: LMHB (ospid: 8614) is terminating the instance.
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