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Ologgerd Consumes High System Memory (Doc ID 2720949.1)

Last updated on OCTOBER 29, 2020

Applies to:

Oracle Database - Enterprise Edition - Version 12.2.0.1 and later
Information in this document applies to any platform.

Symptoms

 It was observed that ologgerd consumed most of the memory and caused db instance and crsd crash.


zzz ***<DATE>
USER      PID   PPID PRI  %CPU  %MEM   VSZ    RSS    WCHAN S  ELAPSED TIME         COMMAND
root   55181792   1  20   1.3  76.0 66893216 51101312  * A   17:12:26 04:24:50 <GI_HOME>/bin/ologgerd -M ##>> high accumulated Memory usage   


ologgerd logs are flushed quickly before ologgerd restart And following info printed in ologgerd trace repeatedly.

<ORACLE_BASE>/diag/crs/<node>/crs/trace/ologgerd.trc:

----------------------------------------------------------------

2020-03-07 20:12:36.863 : CRFLOGD:3844: crflogd_addtocalogqueue: Number of packets are high(count=114697762, sizeinbytes=57774297066). Sending STOPSEND message for CALOG packets

2020-03-07 20:12:36.864 : CRFLOGD:3844: crflogd_addtocalogqueue: Number ofpackets are high(count=114697763, sizeinbytes=57774297569). Sending STOPSEND message for CALOG packets

2020-03-07 20:12:36.864 : CRFLOGD:3844: crflogd_addtocalogqueue: Number of packets are high(count=114697764, sizeinbytes=57774298072). Sending STOPSEND message for CALOG packets

2020-03-07 20:12:36.864 : CRFLOGD:3844: crflogd_addtocalogqueue: Number of packets are high(count=114697765, sizeinbytes=57774298575). Sending STOPSEND message for CALOG packets

2020-03-07 20:12:36.864 : CRFLOGD:3844: crflogd_addtocalogqueue: Number of packets are high(count=114697766, sizeinbytes=57774299042). Sending STOPSEND message for CALOG packets

2020-03-07 20:12:36.864 : CRFLOGD:3844: crflogd_addtocalogqueue: Number of packets are high(count=114697767, sizeinbytes=57774299534). Sending STOPSEND message for CALOG packets

2020-03-07 20:12:36.864 : CRFLOGD:3844: crflogd_addtocalogqueue: Number of packets are high(count=114697768, sizeinbytes=57774300002). Sending STOPSEND message for CALOG packets

 

Changes

 

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References

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