Sessions Hang on Wait Event "WAIT FOR EMON PROCESS NTFNS"

(Doc ID 1287435.1)

Last updated on MAY 04, 2017

Applies to:

Oracle Database - Enterprise Edition - Version and later
Information in this document applies to any platform.


OCI based DB change notification
EMON spin with high CPU usage
EMN0 locks affected multiple applications for a few hours.
Performance suffers until DBCN Database Change Notification is disabled.


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