mirror of
https://github.com/ceph/ceph
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447 lines
7.4 KiB
ReStructuredText
447 lines
7.4 KiB
ReStructuredText
======================
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MDS Config Reference
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======================
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``mds max file size``
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:Description:
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:Type: 64-bit Integer Unsigned
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:Default: 1ULL << 40
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``mds cache size``
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:Description:
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:Type: 32-bit Integer
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:Default: 100000
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``mds cache mid``
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:Description:
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:Type: Float
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:Default: 0.7
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``mds mem max``
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:Description: // KB
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:Type: 32-bit Integer
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:Default: 1048576
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``mds dir commit ratio``
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:Description:
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:Type: Float
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:Default: 0.5
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``mds dir max commit size``
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:Description: // MB
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:Type: 32-bit Integer
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:Default: 90
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``mds decay halflife``
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:Description:
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:Type: Float
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:Default: 5
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``mds beacon interval``
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:Description:
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:Type: Float
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:Default: 4
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``mds beacon grace``
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:Description:
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:Type: Float
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:Default: 15
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``mds blacklist interval``
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:Description: // how long to blacklist failed nodes
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:Type: Float
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:Default: 24.0*60.0
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``mds session timeout``
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:Description: // cap bits and leases time out if client idle
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:Type: Float
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:Default: 60
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``mds session autoclose``
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:Description: // autoclose idle session
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:Type: Float
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:Default: 300
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``mds reconnect timeout``
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:Description: // secs to wait for clients during mds restart
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:Type: Float
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:Default: 45
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``mds tick interval``
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:Description:
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:Type: Float
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:Default: 5
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``mds dirstat min interval``
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:Description: //try to avoid propagating more often than x
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:Type: Float
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:Default: 1
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``mds scatter nudge interval``
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:Description: // how quickly dirstat changes propagate up
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:Type: Float
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:Default: 5
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``mds client prealloc inos``
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:Description:
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:Type: 32-bit Integer
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:Default: 1000
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``mds early reply``
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:Description:
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:Type: Boolean
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:Default: true
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``mds use tmap``
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:Description: // use trivialmap for dir updates
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:Type: Boolean
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:Default: true
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``mds default dir hash``
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:Description: CEPH STR HASH RJENKINS
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:Type: 32-bit Integer
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:Default:
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``mds log``
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:Description:
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:Type: Boolean
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:Default: true
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``mds log skip corrupt events``
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:Description:
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:Type: Boolean
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:Default: false
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``mds log max events``
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:Description:
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:Type: 32-bit Integer
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:Default: -1
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``mds log max segments``
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:Description: // segment size defined by FileLayout above
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:Type: 32-bit Integer
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:Default: 30
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``mds log max expiring``
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:Description:
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:Type: 32-bit Integer
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:Default: 20
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``mds log eopen size``
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:Description: // # open inodes per log entry
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:Type: 32-bit Integer
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:Default: 100
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``mds bal sample interval``
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:Description: // every 5 seconds
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:Type: Float
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:Default: 3
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``mds bal replicate threshold``
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:Description:
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:Type: Float
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:Default: 8000
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``mds bal unreplicate threshold``
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:Description:
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:Type: Float
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:Default: 0
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``mds bal frag``
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:Description:
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:Type: Boolean
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:Default: false
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``mds bal split size``
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:Description:
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:Type: 32-bit Integer
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:Default: 10000
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``mds bal split rd``
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:Description:
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:Type: Float
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:Default: 25000
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``mds bal split wr``
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:Description:
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:Type: Float
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:Default: 10000
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``mds bal split bits``
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:Description:
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:Type: 32-bit Integer
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:Default: 3
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``mds bal merge size``
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:Description:
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:Type: 32-bit Integer
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:Default: 50
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``mds bal merge rd``
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:Description:
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:Type: Float
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:Default: 1000
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``mds bal merge wr``
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:Description:
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:Type: Float
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:Default: 1000
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``mds bal interval``
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:Description: // seconds
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:Type: 32-bit Integer
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:Default: 10
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``mds bal fragment interval``
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:Description: // seconds
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:Type: 32-bit Integer
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:Default: 5
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``mds bal idle threshold``
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:Description:
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:Type: Float
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:Default: 0
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``mds bal max``
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:Description:
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:Type: 32-bit Integer
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:Default: -1
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``mds bal max until``
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:Description:
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:Type: 32-bit Integer
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:Default: -1
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``mds bal mode``
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:Description:
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:Type: 32-bit Integer
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:Default: 0
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``mds bal min rebalance``
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:Description: // must be x above avg before we export
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:Type: Float
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:Default: 0.1
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``mds bal min start``
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:Description: // if we need less x. we don't do anything
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:Type: Float
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:Default: 0.2
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``mds bal need min``
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:Description: // take within this range of what we need
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:Type: Float
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:Default: 0.8
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``mds bal need max``
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:Description:
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:Type: Float
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:Default: 1.2
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``mds bal midchunk``
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:Description: // any sub bigger than this taken in full
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:Type: Float
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:Default: 0.3
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``mds bal minchunk``
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:Description: // never take anything smaller than this
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:Type: Float
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:Default: 0.001
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``mds bal target removal min``
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:Description: // min bal iters before old target is removed
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:Type: 32-bit Integer
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:Default: 5
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``mds bal target removal max``
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:Description: // max bal iters before old target is removed
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:Type: 32-bit Integer
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:Default: 10
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``mds replay interval``
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:Description: // time to wait before starting replay again
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:Type: Float
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:Default: 1
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``mds shutdown check``
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:Description:
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:Type: 32-bit Integer
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:Default: 0
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``mds thrash exports``
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:Description:
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:Type: 32-bit Integer
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:Default: 0
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``mds thrash fragments``
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:Description:
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:Type: 32-bit Integer
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:Default: 0
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``mds dump cache on map``
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:Description:
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:Type: Boolean
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:Default: false
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``mds dump cache after rejoin``
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:Description:
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:Type: Boolean
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:Default: false
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``mds verify scatter``
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:Description:
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:Type: Boolean
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:Default: false
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``mds debug scatterstat``
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:Description:
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:Type: Boolean
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:Default: false
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``mds debug frag``
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:Description:
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:Type: Boolean
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:Default: false
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``mds debug auth pins``
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:Description:
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:Type: Boolean
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:Default: false
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``mds debug subtrees``
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:Description:
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:Type: Boolean
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:Default: false
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``mds kill mdstable at``
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:Description:
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:Type: 32-bit Integer
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:Default: 0
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``mds kill export at``
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:Description:
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:Type: 32-bit Integer
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:Default: 0
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``mds kill import at``
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:Description:
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:Type: 32-bit Integer
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:Default: 0
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``mds kill link at``
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:Description:
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:Type: 32-bit Integer
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:Default: 0
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``mds kill rename at``
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:Description:
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:Type: 32-bit Integer
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:Default: 0
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``mds wipe sessions``
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:Description:
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:Type: Boolean
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:Default: 0
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``mds wipe ino prealloc``
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:Description:
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:Type: Boolean
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:Default: 0
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``mds skip ino``
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:Description:
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:Type: 32-bit Integer
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:Default: 0
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``max mds``
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:Description:
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:Type: 32-bit Integer
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:Default: 1
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``mds standby for name``
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:Description:
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:Type: String
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:Default:
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``mds standby for rank``
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:Description:
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:Type: 32-bit Integer
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:Default: -1
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``mds standby replay``
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:Description:
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:Type: Boolean
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:Default: false |