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Bug #44684

closed

pgs entering premerge state that still need backfill

Added by Sage Weil about 4 years ago. Updated about 4 years ago.

Status:
Resolved
Priority:
Urgent
Assignee:
Sage Weil
Category:
-
Target version:
-
% Done:

0%

Source:
Tags:
Backport:
nautilus
Regression:
No
Severity:
3 - minor
Reviewed:
Affected Versions:
ceph-qa-suite:
Component(RADOS):
Pull request ID:
34067
Crash signature (v1):
Crash signature (v2):

Description

root@reesi002:~# ceph pg ls premerge
PG     OBJECTS  DEGRADED  MISPLACED  UNFOUND  BYTES        OMAP_BYTES*  OMAP_KEYS*  LOG   STATE                                 SINCE  VERSION          REPORTED         UP              ACTING          SCRUB_STAMP                      DEEP_SCRUB_STAMP               
0.661    12341         0       9421        0  17993553727            0           0  2194  remapped+premerge+backfilling+peered     3m  2255655'4928483  2255789:7875245  [36,135,91]p36  [90,135,91]p90  2020-03-19T19:22:00.122013+0000  2020-03-18T13:07:08.691898+0000
0.e61    12061         0          0        0  17610470273            0           0   898                 clean+premerge+peered     3m  2255655'4977032  2255788:8541081  [36,135,91]p36  [36,135,91]p36  2020-03-19T08:28:01.806698+0000  2020-03-16T08:43:25.896120+0000
root@reesi002:~# ceph version
ceph version 15.1.1-155-g3ed3f34 (3ed3f34b9801edf2529295b008b27adee1965640) octopus (rc)

Related issues 1 (0 open — 1 closed)

Copied to RADOS - Backport #44711: nautilus: pgs entering premerge state that still need backfillResolvedNathan CutlerActions
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 #1

Updated by Sage Weil about 4 years ago

it's the mgr's fault..

2020-03-19T21:12:44.275+0000 7fdbf8aa3700 20 mgr.server adjust_pgs 
2020-03-19T21:12:44.275+0000 7fdbf8aa3700 10 mgr.server operator() creating_or_unknown 0 max_creating 1024 left 1024
2020-03-19T21:12:44.275+0000 7fdbf8aa3700 20 mgr.server operator() misplaced_ratio 0 degraded_ratio 0 inactive_pgs_ratio 0 unknown_pgs_ratio 0; target_max_misplaced_ratio 0.06
2020-03-19T21:12:44.275+0000 7fdbf8aa3700 20 mgr.server operator() pool 0 pg_num 3680 target 1024
2020-03-19T21:12:44.275+0000 7fdbf8aa3700 10 mgr.server operator() pool 0 pg_num_target 1024 pg_num 3680 - merge target 0.65f has upmap

then 2 seconds later, before pg stats refresh,
2020-03-19T21:12:46.279+0000 7fdbf8aa3700 20 mgr.server adjust_pgs 
2020-03-19T21:12:46.279+0000 7fdbf8aa3700 10 mgr.server operator() creating_or_unknown 0 max_creating 1024 left 1024
2020-03-19T21:12:46.279+0000 7fdbf8aa3700 20 mgr.server operator() misplaced_ratio 0 degraded_ratio 0 inactive_pgs_ratio 0.000221582 unknown_pgs_ratio 0; target_max_misplaced_ratio 0.06
2020-03-19T21:12:46.279+0000 7fdbf8aa3700 20 mgr.server operator() pool 0 pg_num 3680 target 1024
2020-03-19T21:12:46.279+0000 7fdbf8aa3700 10 mgr.server operator() pool 0 pg_num_target 1024 pg_num 3680 -> 3679 (merging 0.e5f and 0.65f)

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 #2

Updated by Sage Weil about 4 years ago

  • Status changed from In Progress to Pending Backport
  • Backport set to nautilus
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 #3

Updated by Nathan Cutler about 4 years ago

  • Copied to Backport #44711: nautilus: pgs entering premerge state that still need backfill added
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 #4

Updated by Nathan Cutler about 4 years ago

  • Pull request ID set to 34067
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 #5

Updated by Nathan Cutler about 4 years ago

  • Status changed from Pending Backport to Resolved

While running with --resolve-parent, the script "backport-create-issue" noticed that all backports of this issue are in status "Resolved" or "Rejected".

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