Bug 2228039 - mds: do not evict clients if OSDs are laggy
Summary: mds: do not evict clients if OSDs are laggy
Keywords:
Status: NEW
Alias: None
Product: Red Hat Ceph Storage
Classification: Red Hat Storage
Component: CephFS
Version: 5.2
Hardware: Unspecified
OS: Unspecified
unspecified
medium
Target Milestone: ---
: 5.3z6
Assignee: Dhairya Parmar
QA Contact: Hemanth Kumar
URL:
Whiteboard:
Depends On:
Blocks: 2228065 2228066
TreeView+ depends on / blocked
 
Reported: 2023-08-01 07:59 UTC by Dhairya Parmar
Modified: 2023-08-17 14:22 UTC (History)
4 users (show)

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Clone Of:
: 2228065 2228066 (view as bug list)
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System ID Private Priority Status Summary Last Updated
Ceph Project Bug Tracker 58023 0 None None None 2023-08-01 09:33:43 UTC
Red Hat Issue Tracker RHCEPH-7130 0 None None None 2023-08-01 08:13:58 UTC

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.
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