Event Monitor (EMON) Slave Process Constantly Consuming CPU
(Doc ID 1603844.1)
Last updated on NOVEMBER 01, 2019
Applies to:Oracle Database - Enterprise Edition - Version 22.214.171.124 to 126.96.36.199 [Release 11.2 to 12.1]
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Information in this document applies to any platform.
Event Monitor (EMON) slave process is consuming CPU.
Multiple stacks from the process obtained via
connect / as sysdba
oradebug setospid 1379
or use the following to find EMON process
In 11g ps -ef | grep EMON
In 12c ps-ef |grep ennn
have the form
Oracle pid: 43, Unix process pid: 1379, image: oracle@feltux3154 (E000)
which indicates it is stuck in a network write.
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