High Cpu Usage By M000 Process And Kewrafc Code 5 In MMON Trace File
(Doc ID 555124.1)
Last updated on OCTOBER 07, 2015
Applies to:Oracle Database - Enterprise Edition - Version 10.1.0.2 to 10.2.0.4 [Release 10.1 to 10.2]
Information in this document applies to any platform.
M000 process using nearly 100% CPU. MMON trace reporting following message every minute:
The errorstack of the M000 process shows the following DML query being executed: -
insert into wrh$_latch (snap_id, dbid, instance_number, latch_hash, level#, gets, misses, sleeps, immediate_gets, immediate_misses, spin_gets, sleep1, sleep2, sleep3, sleep4, wait_time) select :snap_id, :dbid, :instance_number, hash, level#, gets, misses, sleeps, immediate_gets, immediate_misses, spin_gets, sleep1, sleep2, sleep3, sleep4, wait_time from v$latch order by hash
To view full details, sign in with your My Oracle Support account.
Don't have a My Oracle Support account? Click to get started!
In this Document
|This document is being delivered to you via Oracle Support's Rapid Visibility (RaV) process and therefore has not been subject to an independent technical review.|