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Many Slowdowns in "GCS DRM FREEZE IN ENTER SERVER MODE" Each Day

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发表于 2022-4-21 11:15:26 | 显示全部楼层 |阅读模式
Bug 32753472 - Many Slowdowns in "GCS DRM FREEZE IN ENTER SERVER MODE" Each Day (Doc ID 32753472.8)


Bug 32753472  Many Slowdowns in "GCS DRM FREEZE IN ENTER SERVER MODE" Each Day
This note gives a brief overview of bug 32753472.
The content was last updated on: 08-MAR-2022
Click here for details of each of the sections below.
Affects:
Product (Component)        Oracle Server (Rdbms)
Range of versions believed to be affected        Versions BELOW 23.1
Versions confirmed as being affected       
19.12.0
19.11.0
19.10.0
19.7.0
19.1.0
Platforms affected        Generic (all / most platforms affected)
Fixed:
The fix for 32753472 is first included in       
21.4.0.0.DBRU:211019 (OCT 2021) DB Release Update (DB RU)
19.13.0.0.DBRU:211019 (OCT 2021) DB Release Update (DB RU)

Interim patches may be available for earlier versions - click here to check.
Symptoms:
Related To:
Performance Affected (General)
RAC (Real Application Clusters) / OPS
Description
This bug is only relevant when using Real Application Clusters (RAC)
Many Slowdowns in "gcs drm freeze in enter server mode" each day


REDISCOVERY INFORMATION:

LHMB disables DRM and immediately enables it.

Look for lmhb trace file for below messages -

** 2021-04-26T10:18:23.234243-05:00
kjgcr_CPUDisableDRM: one or more node is unhealthy, disabling DRM (act-id 46)

*** 2021-04-26T10:18:23.234263-05:00
kjgcr_DoAction: KJGCR_ACTION - id:46 disable drm (hb) ran with status:0 clr:1

*** 2021-04-26T10:18:23.234282-05:00
kjgcr_CPUEnableDRM: All nodes now healthy, DRM enabled(act-id 47)

*** 2021-04-26T10:18:25.194775-05:00
kjgcr_DoPreAction: KJGCR_PREACTION? disable drm (hb) - id:46

*** 2021-04-26T10:18:25.194852-05:00
kjgcr_DoAction: KJGCR_ACTION? disable drm (hb) - id:46

*** 2021-04-26T10:18:25.194868-05:00
kjgcr_CPUDisableDRM: one or more node is unhealthy, disabling DRM (act-id 46)

Workaround

None

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