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Bug #64685

closed

mds: disable defer_client_eviction_on_laggy_osds by default

Added by Venky Shankar about 2 months ago. Updated about 1 month ago.

Status:
Resolved
Priority:
Normal
Assignee:
Venky Shankar
Category:
Correctness/Safety
Target version:
Ceph - v20.0.0
% Done:

0%

Source:
Tags:
backport_processed
Backport:
quincy,reef,squid
Regression:
No
Severity:
3 - minor
Reviewed:
Affected Versions:
ceph-qa-suite:
Component(FS):
MDS
Labels (FS):
Pull request ID:
55922
Crash signature (v1):
Crash signature (v2):

Description

This config can result in a single client holding up mds to service other clients since once a client is deferred from eviction due to laggy OSD, a new clients cap acquire request can be possibly blocked until the other laggy client resumes operation, i.e., when the laggy OSD is considered non-laggy anymore.

Related issues 4 (1 open — 3 closed)

Related to CephFS - Fix #58023: mds: do not evict clients if OSDs are laggyPending BackportDhairya Parmar

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Copied to CephFS - Backport #64924: squid: mds: disable defer_client_eviction_on_laggy_osds by defaultResolvedVenky ShankarActions
Copied to CephFS - Backport #64925: quincy: mds: disable defer_client_eviction_on_laggy_osds by defaultResolvedVenky ShankarActions
Copied to CephFS - Backport #64926: reef: mds: disable defer_client_eviction_on_laggy_osds by defaultResolvedVenky ShankarActions
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 #1

Updated by Venky Shankar about 2 months ago

  • Status changed from New to Fix Under Review
  • Pull request ID set to 55922
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 #2

Updated by Venky Shankar about 2 months ago

  • Status changed from Fix Under Review to Pending Backport
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 #3

Updated by Backport Bot about 2 months ago

  • Copied to Backport #64924: squid: mds: disable defer_client_eviction_on_laggy_osds by default added
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 #4

Updated by Backport Bot about 2 months ago

  • Copied to Backport #64925: quincy: mds: disable defer_client_eviction_on_laggy_osds by default added
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 #5

Updated by Backport Bot about 2 months ago

  • Copied to Backport #64926: reef: mds: disable defer_client_eviction_on_laggy_osds by default added
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 #6

Updated by Backport Bot about 2 months ago

  • Tags set to backport_processed
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 #7

Updated by Venky Shankar about 2 months ago

  • Related to Fix #58023: mds: do not evict clients if OSDs are laggy added
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 #8

Updated by Venky Shankar about 1 month ago

  • Status changed from Pending Backport to Resolved
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