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doc: Add doc about osd scrub {during recovery|chunk {min|max}| sleep}

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Signed-off-by: Paweł Sadowski <pawel.sadowski@corp.ovh.com>
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Paweł Sadowski 2016-11-21 10:31:29 +01:00
parent 073240c812
commit 71c03bc610
1 changed files with 37 additions and 0 deletions
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37
doc/rados/configuration/osd-config-ref.rst
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@ -237,6 +237,17 @@ scrubbing operations.
:Type: Integer in the range of 0 to 24
:Default: ``24``
``osd scrub during recovery``
:Description: Allow scrub during recovery. Setting this to ``false`` will disable
scheduling new scrub (and deep--scrub) while there is active recovery.
Already running scrubs will be continued. This might be useful to reduce
load on busy clusters.
:Type: Boolean
:Default: ``true``
``osd scrub thread timeout``
:Description: The maximum time in seconds before timing out a scrub thread.
@ -281,6 +292,32 @@ scrubbing operations.
:Default: Once per week. ``7*60*60*24``
``osd scrub chunk min``
:Description: The minimal number of object store chunks to scrub during single operation.
Ceph blocks writes to single chunk during scrub.
:Type: 32-bit Integer
:Default: 5
``osd scrub chunk max``
:Description: The maximum number of object store chunks to scrub during single operation.
:Type: 32-bit Integer
:Default: 25
``osd scrub sleep``
:Description: Time to sleep before scrubbing next group of chunks. Increasing this value will slow
down whole scrub operation while client operations will be less impacted.
:Type: Float
:Default: 0
``osd deep scrub interval``
:Description: The interval for "deep" scrubbing (fully reading all data). The