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Merge PR #20927 into master

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* refs/pull/20927/head:
	doc: use actual entity address for clarity
	doc: make minor grammatical rectifications

Reviewed-by: Patrick Donnelly <pdonnell@redhat.com>
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Patrick Donnelly 2018-03-29 14:03:36 -07:00
commit 0e3d5653e4
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doc/cephfs/eviction.rst
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@ -40,7 +40,7 @@ Manual client eviction
======================
Sometimes, the administrator may want to evict a client manually. This
could happen if a client is died and the administrator does not
could happen if a client has died and the administrator does not
want to wait for its session to time out, or it could happen if
a client is misbehaving and the administrator does not have access to
the client node to unmount it.
@ -100,9 +100,12 @@ the blacklist:
::
ceph osd blacklist ls
# ... identify the address of the client ...
ceph osd blacklist rm <address>
$ ceph osd blacklist ls
listed 1 entries
127.0.0.1:0/3710147553 2018-03-19 11:32:24.716146
$ ceph osd blacklist rm 127.0.0.1:0/3710147553
un-blacklisting 127.0.0.1:0/3710147553
Doing this may put data integrity at risk if other clients have accessed
files that the blacklisted client was doing buffered IO to. It is also not
@ -169,9 +172,9 @@ a per-inode basis. But we don't, because:
* It would be more complicated.
* It would use an extra 4 bytes of memory for every inode.
* It would not be much more efficient as almost always everyone has the latest.
OSD map anyway, in most cases everyone will breeze through this barrier
rather than waiting.
* It would not be much more efficient as, almost always, everyone has
the latest OSD map. And, in most cases everyone will breeze through this
barrier rather than waiting.
* This barrier is done in very rare cases, so any benefit from per-inode
granularity would only very rarely be seen.