[MB-30760] [Backport] Tune Memtuner to honor plasma memory quota strictly - Couchbase database

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Details

Type: Bug
Status: Closed
Priority: Major
Resolution: Won't Do
Affects Version/s: 5.1.0
Fix Version/s: None
Component/s: storage-engine
Labels:
- performance
- plasma

Triage:
Untriaged
Epic Link:
5.1.2
Is this a Regression?:
No
Sprint:
Storage-Sprint-End-Jul-27-2018, Storage-Sprint-End-Aug-10-2018

Description

Currently plasma Memtuner only looks at system free memory and is intended to prevent OOM killer.

Instead it should look at plasma memory quota so that the total RSS is under expected levels.

Attachments

Issue Links

relates to

MB-23084 indexer process rss is 7GB+ more than allocated index memory quota when plasma as storage mode

Closed

MB-30870 BACKPORT [plasma] logCleaner runs infinitely hanging warmup

Closed

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View 8 older comments

Sundar Sridharan (Inactive) added a comment - 16/Aug/18 3:58 PM

No, Wayne Siu, the change was temporarily reverted, but the proper fix was merged and its part of the build.

Sundar Sridharan (Inactive) added a comment - 16/Aug/18 3:58 PM No, Wayne Siu , the change was temporarily reverted, but the proper fix was merged and its part of the build.

Wayne Siu added a comment - 16/Aug/18 5:01 PM

Met with Sundar to clarify. There was no fix from this ticket specifically on Vulcan.

The proper fix was tracked by ~~MB-30870~~.

Wayne Siu added a comment - 16/Aug/18 5:01 PM Met with Sundar to clarify. There was no fix from this ticket specifically on Vulcan. The proper fix was tracked by MB-30870 .

Couchbase Build Team added a comment - 07/Sep/18 9:54 AM

Build couchbase-server-6.0.0-1613 contains plasma commit 30badd9 with commit message:
Revert "Revert "~~MB-30760~~ mem: Run memtuner if the process RSS overshoots by 20%""

Couchbase Build Team added a comment - 07/Sep/18 9:54 AM Build couchbase-server-6.0.0-1613 contains plasma commit 30badd9 with commit message: Revert "Revert " MB-30760 mem: Run memtuner if the process RSS overshoots by 20%""

Couchbase Build Team added a comment - 07/Sep/18 2:53 PM

Build couchbase-server-5.5.2-3726 contains plasma commit 30badd9 with commit message:
Revert "Revert "~~MB-30760~~ mem: Run memtuner if the process RSS overshoots by 20%""

Couchbase Build Team added a comment - 07/Sep/18 2:53 PM Build couchbase-server-5.5.2-3726 contains plasma commit 30badd9 with commit message: Revert "Revert " MB-30760 mem: Run memtuner if the process RSS overshoots by 20%""

Couchbase Build Team added a comment - 07/Sep/18 10:50 PM

Build couchbase-server-5.5.2-3727 contains indexing commit 0e89a72 with commit message:
~~MB-30760~~ plasma: Config setting for MTunerOvershootRatio

Couchbase Build Team added a comment - 07/Sep/18 10:50 PM Build couchbase-server-5.5.2-3727 contains indexing commit 0e89a72 with commit message: MB-30760 plasma: Config setting for MTunerOvershootRatio