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Data Guard Server Operation Completion In Top Wait Events in 12c (Doc ID 2121610.1)

Last updated on FEBRUARY 21, 2024

Applies to:

Oracle Database - Enterprise Edition - Version and later
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.


In 12c "Data Guard server operation completion" wait event is seen in Oracle Enterprise Manager (EM) and top wait event in AWR report.

AWR in Logical Standby Database shows the event at the top:

Top 10 Foreground Events by Total Wait Time

Event Waits Total Wait Time (sec) Wait Avg(ms) % DB time Wait Class
Data Guard server operation completion 647,870 7599.3 11.73 58.8 Other

RFS process has the wait event:



 Database is in 12c


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