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Bug #23560

closed

mds: mds gets significantly behind on trimming while creating millions of files (cont.)

Added by Patrick Donnelly about 6 years ago. Updated about 6 years ago.

Status:
Resolved
Priority:
High
Assignee:
Patrick Donnelly
Category:
-
Target version:
Ceph - v13.0.0
% Done:

0%

Source:
Development
Tags:
Backport:
luminous
Regression:
No
Severity:
3 - minor
Reviewed:
Affected Versions:
ceph-qa-suite:
Component(FS):
MDS
Labels (FS):
Pull request ID:
Crash signature (v1):
Crash signature (v2):

Description

Under create heavy workloads, MDS sometimes reaches ~60 untrimmed segments for brief periods. I suggest we bump mds_log_max_segments to 128 to compensate and allow the MDS a buffer to catch up.

Related issues 2 (0 open — 2 closed)

Related to CephFS - Bug #21975: MDS: mds gets significantly behind on trimming while creating millions of filesResolvedZheng Yan10/30/2017

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Copied to CephFS - Backport #23561: luminous: mds: mds gets significantly behind on trimming while creating millions of files (cont.)ResolvedPatrick DonnellyActions
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 #1

Updated by Patrick Donnelly about 6 years ago

  • Related to Bug #21975: MDS: mds gets significantly behind on trimming while creating millions of files added
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 #2

Updated by Patrick Donnelly about 6 years ago

  • Status changed from New to Fix Under Review
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 #3

Updated by Patrick Donnelly about 6 years ago

  • Status changed from Fix Under Review to Pending Backport
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 #4

Updated by Patrick Donnelly about 6 years ago

  • Copied to Backport #23561: luminous: mds: mds gets significantly behind on trimming while creating millions of files (cont.) added
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 #5

Updated by Patrick Donnelly about 6 years ago

  • Status changed from Pending Backport to Resolved
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