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"RMA: IPC0 completion sync" in Top Timed Events in AWR (Doc ID 2546102.1)

Last updated on JANUARY 02, 2020

Applies to:

Oracle Database - Enterprise Edition - Version 12.2.0.1 to 19.1.0.0.0 [Release 12.2 to 18]
Information in this document applies to any platform.

Symptoms

Wait event "RMA: IPC0 completion sync" is in Top Timed Events in AWR report on a fresh 12.2 Real Application Cluster environment. A sample WORKLOAD REPOSITORY REPORT (RAC) indicate following:

 

Top Timed Events

I#    Class    Event    Waits    %Timeouts    Total(s)    Avg Wait    Û time    Avg    Min    Max    Std Dev    Cnt

*                 DB CPU 1,895.30 65.57 2
*      Other   RMA: IPC0 completion sync 52,736 0.00 1,024.32 19.42ms 35.44 19.42ms 19.42ms 19.43ms 3.45us 2

Top Timed Background Events

I#    Class    Event    Waits    %Timeouts    Total(s)    Avg Wait    Û time    Avg    Min    Max    Std Dev    Cnt

        Other   RMA: IPC0 completion sync 52,736 0.00 1,024.32 19.42ms 0.17 19.42ms 19.42ms 19.43ms 3.45us 2

 

Changes

 

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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