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Bug #37670

standby-replay MDS spews message to log every second

Added by Jeff Layton 3 months ago. Updated about 2 months ago.

Status:
Resolved
Priority:
High
Category:
-
Target version:
Start date:
Due date:
% Done:

0%

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

Description

I used the mgr volumes module on my rook cluster to create a new cephfs. The orchestrator started up 2 MDS':

# ceph fs status
a - 2 clients
=
+------+----------------+-----+---------------+-------+-------+
| Rank |     State      | MDS |    Activity   |  dns  |  inos |
+------+----------------+-----+---------------+-------+-------+
|  0   |     active     | a-b | Reqs:    0 /s |   10  |   13  |
| 0-s  | standby-replay | a-a | Evts:    0 /s |    0  |    3  |
+------+----------------+-----+---------------+-------+-------+
+---------------+----------+-------+-------+
|      Pool     |   type   |  used | avail |
+---------------+----------+-------+-------+
| cephfs.a.meta | metadata | 8594  | 70.9G |
| cephfs.a.data |   data   |    0  | 70.9G |
+---------------+----------+-------+-------+
+-------------+
| Standby MDS |
+-------------+
+-------------+
MDS version: ceph version 14.0.1-1580-gb88de88 (b88de8805910eca51830c609a9a1269a3d2be953) nautilus (dev)

After that, I noticed the standby-replay MDS was spewing a log message like this every second:

2018-12-17 14:39:29.762 7f0b2998a700  1 mds.0.0 replay_done (as standby)
2018-12-17 14:39:30.764 7f0b2998a700  1 mds.0.0 replay_done (as standby)
2018-12-17 14:39:31.765 7f0b2998a700  1 mds.0.0 replay_done (as standby)

Assuming this function running every second is expected behavior, we should probably tone down this log message.


Related issues

Copied to fs - Backport #37757: mimic: standby-replay MDS spews message to log every second Resolved
Copied to fs - Backport #37758: luminous: standby-replay MDS spews message to log every second Resolved

History

#1 Updated by Patrick Donnelly 3 months ago

  • Assignee set to Patrick Donnelly
  • Priority changed from Normal to High
  • Target version set to v14.0.0
  • Start date deleted (12/17/2018)
  • Source set to Development
  • Backport set to mimic,luminous

#2 Updated by Patrick Donnelly 3 months ago

  • Status changed from New to Need Review
  • Pull request ID set to 25591

#3 Updated by Patrick Donnelly 3 months ago

  • Status changed from Need Review to Pending Backport

#4 Updated by Nathan Cutler 3 months ago

  • Copied to Backport #37757: mimic: standby-replay MDS spews message to log every second added

#5 Updated by Nathan Cutler 3 months ago

  • Copied to Backport #37758: luminous: standby-replay MDS spews message to log every second added

#6 Updated by Patrick Donnelly about 2 months ago

  • Status changed from Pending Backport to Resolved

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