Alert Log File Message "ERROR: Emon failed to start." And "wait for EMON to spawn"
Last updated on FEBRUARY 02, 2017
Applies to:Oracle Database - Enterprise Edition - Version 126.96.36.199 to 188.8.131.52 [Release 11.1 to 11.2]
Information in this document applies to any platform.
***Checked for relevance on 26-Feb-2013***
EMON process fails during database start-up. When reviewing alert log file, the following error is seen:
There may be sessions waiting on "wait for EMON to spawn" as well, you can use below query to double check.
Enabled Advanced Queueing Notification System or if already in use, increased the client registered volume.
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