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Doc: Add config option to turn off crush update

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Signed-off-by: David Moreau Simard <dmsimard@iweb.com>
This commit is contained in:
David Moreau Simard 2014-08-22 10:55:55 -04:00
parent 5234abfa22
commit 2c2748519d
1 changed files with 8 additions and 2 deletions
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10
doc/rados/operations/crush-map.rst
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@ -80,8 +80,9 @@ Note:
ceph-crush-location hook
------------------------
The ``ceph-crush-location`` utility will generate a default CRUSH location
string for a given daemon. The location is based on, in order of preference:
By default, the ``ceph-crush-location`` utility will generate a CRUSH
location string for a given daemon. The location is based on, in order of
preference:
#. A ``TYPE crush location`` option in ceph.conf. For example, this
is ``osd crush location`` for OSD daemons.
@ -95,6 +96,11 @@ ceph.conf to describe that machine's location within the datacenter or
cluster. This will be provide location awareness to both Ceph daemons
and clients alike.
It is possible to manage the CRUSH map entirely manually by toggling
the hook off in the configuration::
osd crush update on start = false
Custom location hooks
---------------------