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Bug #24686

change default filestore_merge_threshold to -10

Added by Douglas Fuller about 2 years ago. Updated about 2 years ago.

Status:
Resolved
Priority:
High
Assignee:
Douglas Fuller
Category:
Performance/Resource Usage
Target version:
-
% Done:

0%

Source:
Development
Tags:
Backport:
luminous, mimic
Regression:
No
Severity:
2 - major
Reviewed:
Affected Versions:
ceph-qa-suite:
Component(RADOS):
FileStore
Pull request ID:
Crash signature:

Description

Performance evaluations of medium to large size Ceph clusters have demonstrated negligible performance impact from unnecessarily deep directory hierarchies but significant performance impact from filestore split and merge activity. Disable merges by default

Related issues

Blocks RADOS - Bug #24687: Automatically set expected_num_objects for new pools with >=100 PGs per OSD Resolved 06/28/2018
Copied to RADOS - Backport #24747: mimic: change default filestore_merge_threshold to -10 Resolved
Copied to RADOS - Backport #24748: luminous: change default filestore_merge_threshold to -10 Resolved

History

#1 Updated by Douglas Fuller about 2 years ago

  • Blocks Bug #24687: Automatically set expected_num_objects for new pools with >=100 PGs per OSD added

#2 Updated by Douglas Fuller about 2 years ago

  • Status changed from New to In Progress

#3 Updated by Josh Durgin about 2 years ago

  • Status changed from In Progress to Pending Backport
  • Backport changed from luminous to luminous, mimic

#4 Updated by Nathan Cutler about 2 years ago

  • Copied to Backport #24747: mimic: change default filestore_merge_threshold to -10 added

#5 Updated by Nathan Cutler about 2 years ago

  • Copied to Backport #24748: luminous: change default filestore_merge_threshold to -10 added

#7 Updated by Nathan Cutler about 2 years ago

  • Status changed from Pending Backport to Resolved

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