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Documentation #53997

closed

cephadm spec: document "config" key

Added by Sebastian Wagner about 2 years ago. Updated 11 months ago.

Status:
Resolved
Priority:
Normal
Assignee:
Redouane Kachach Elhichou
Category:
cephadm
Target version:
-
% Done:

0%

Tags:
low-hanging-fruit backport_processed
Backport:
quincy,pacific
Reviewed:
Affected Versions:
Pull request ID:
46926

Description

Users can specify config options for a particular service:

service_type: mds
service_id: fsname
placement:
  count: 2
config:
  mds_cache_memory_limit: 8Gi

This is also going to be cleaned up properly. Let's document it!

Related issues 3 (0 open — 3 closed)

Related to Orchestrator - Documentation #50883: cephadm: mds_cache_memory_limitDuplicate

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Copied to Orchestrator - Backport #56504: pacific: cephadm spec: document "config" keyResolvedAdam KingActions
Copied to Orchestrator - Backport #56505: quincy: cephadm spec: document "config" keyResolvedAdam KingActions
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 #1

Updated by Sebastian Wagner about 2 years ago

  • Tracker changed from Bug to Documentation
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 #2

Updated by Redouane Kachach Elhichou almost 2 years ago

  • Status changed from New to In Progress
  • Assignee set to Redouane Kachach Elhichou
  • Pull request ID set to 46926
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 #3

Updated by Redouane Kachach Elhichou almost 2 years ago

  • Status changed from In Progress to Pending Backport
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 #4

Updated by Redouane Kachach Elhichou almost 2 years ago

  • Backport set to quincy,pacific
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 #5

Updated by Backport Bot almost 2 years ago

  • Copied to Backport #56504: pacific: cephadm spec: document "config" key added
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 #6

Updated by Backport Bot almost 2 years ago

  • Copied to Backport #56505: quincy: cephadm spec: document "config" key added
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 #7

Updated by Redouane Kachach Elhichou almost 2 years ago

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 #8

Updated by Backport Bot over 1 year ago

  • Tags changed from low-hanging-fruit to low-hanging-fruit backport_processed
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 #9

Updated by Adam King over 1 year ago

  • Status changed from Pending Backport to Resolved
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 #10

Updated by Voja Molani 11 months ago

This configuration mechanism doesn't seem to work with config parameters like mgr/cephadm/device_enhanced_scan - I guess it might only work with parameters missing the service/something/ part, such as the example mds_cache_memory_limit?

It would be nice and save head-scratching & useless attempts if this was actually documented. The documentation at https://docs.ceph.com/en/quincy/cephadm/services/#service-specification makes it seem like there are no restrictions. But unless I am doing something wrong on 17.2.6 I could not set on the MGR service spec:

config:
  mgr/cephadm/device_enhanced_scan: true

Additionally, this fails at ceph orch apply stage and it does not raise health warnings as documented.

It is as if these service/something/param parameters are completely forgotten by this feature and the documentation - or I am doing something wrong which wouldn't be the first time.

Of course it would be even better if these parameters could be set in service specification (along with config-key parameters!)

I guess I should open a new issue for this but I'm afraid it's just me doing it wrong again...

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