Bug 2228039

Summary:	mds: do not evict clients if OSDs are laggy
Product:	[Red Hat Storage] Red Hat Ceph Storage	Reporter:	Dhairya Parmar <dparmar>
Component:	CephFS	Assignee:	Dhairya Parmar <dparmar>
Status:	NEW ---	QA Contact:	Hemanth Kumar <hyelloji>
Severity:	medium	Docs Contact:
Priority:	unspecified
Version:	5.2	CC:	ceph-eng-bugs, cephqe-warriors, hyelloji, sostapov
Target Milestone:	---
Target Release:	5.3z6
Hardware:	Unspecified
OS:	Unspecified
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Clone Of:
Clones:	2228065 2228066 (view as bug list)		Environment:
Last Closed:		Type:	Bug
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	2228065, 2228066

Description Dhairya Parmar 2023-08-01 07:59:52 UTC

Description of problem: If OSD(s) is/are laggy (due to certain conditions like network cut-off, etc) then it might make clients laggy(session might get idle or cannot flush dirty data for cap revokes). Therefore have a config option that can be used to defer evicting/removing "laggy" client sessions until OSDs are no longer laggy. Log a warning to the cluster indicating the situation.


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Comment 1 RHEL Program Management 2023-08-01 08:00:02 UTC

Please specify the severity of this bug. Severity is defined here:
https://bugzilla.redhat.com/page.cgi?id=fields.html#bug_severity.

Comment 5 Scott Ostapovicz 2023-08-17 14:22:45 UTC

This is being retargeted to 5.3 z6 since it was not completed in time for the 5.3 z5 release.