ceph/doc/config-cluster/journal-ref.rst
John Wilkins 446e68cfda doc: Added journal section placeholders. Definitions needed.
Signed-off-by: John Wilkins <john.wilkins@inktank.com>
2012-09-23 21:54:20 -07:00

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1.7 KiB
ReStructuredText

=========
Journal
=========
Journal
=======
``journal dio``
:Description:
:Type: Boolean
:Required: No
:Default: ``true``
``journal aio``
:Description:
:Type: Boolean
:Required: No
:Default: ``false``
``journal block align``
:Description:
:Type: Boolean
:Required: No
:Default: ``true``
``journal max write bytes``
:Description:
:Type: Integer
:Required: No
:Default: ``10 << 20``
``journal max write entries``
:Description:
:Type: Integer
:Required: No
:Default: ``100``
``journal queue max ops``
:Description:
:Type: Integer
:Required: No
:Default: ``500``
``journal queue max bytes``
:Description:
:Type: Integer
:Required: No
:Default: ``10 << 20``
``journal align min size``
:Description: Align data payloads greater than the specified minimum.
:Type: Integer
:Required: No
:Default: ``64 << 10``
``journal replay from``
:Description:
:Type: Integer
:Required: No
:Default: ``0``
``journal zero on create``
:Description:
:Type: Boolean
:Required: No
:Default: ``false``
Journaler
=========
``journaler allow split entries``
:Description:
:Type: Boolean
:Required: No
:Default: ``true``
``journaler write ahead interval``
:Description:
:Type: Integer
:Required: No
:Default: ``15``
``journaler prefetch periods``
:Description:
:Type: Integer
:Required: No
:Default: ``10``
``journal prezero periods``
:Description:
:Type: Integer
:Required: No
:Default: ``10``
``journaler batch interval``
:Description: Maximum additional latency in seconds we incur artificially.
:Type: Double
:Required: No
:Default: ``.001``
``journaler batch max``
:Description: Maximum bytes we'll delay flushing.
:Type: 64-bit Unsigned Integer
:Required: No
:Default: ``0``