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doc/mgr/balancer: document #21421

Merged
merged 1 commit into from Apr 13, 2018
Merged

doc/mgr/balancer: document #21421

merged 1 commit into from Apr 13, 2018

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liewegas
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Not sure how we missed this for luminous!

Fixes: http://tracker.ceph.com/issues/22789

Not sure how we missed this for luminous!

Signed-off-by: Sage Weil <sage@redhat.com>
@liewegas liewegas added this to the mimic milestone Apr 13, 2018
@liewegas liewegas requested a review from jcsp April 13, 2018 17:41
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@dvanders look good to you?

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@liewegas lgtm!

@liewegas liewegas merged commit 4520d43 into ceph:master Apr 13, 2018
@liewegas liewegas deleted the wip-doc-balancer branch April 13, 2018 21:16
be moved) is below a threshold of (by default) 5%. The
``max_misplaced`` threshold can be adjusted with::

ceph config-key set mgr/balancer/max_misplaced .07 # 7%
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The awkward thing here is that a reboot of the mgr process is required in order to make these settings take effect immediately...

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This is a problem with config-key refreshing on the mgr... see #20458

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