From: Sage Weil Date: Wed, 18 Dec 2019 20:00:42 +0000 (-0600) Subject: doc/cephfs/standby: document mds_join_fs X-Git-Tag: v15.1.0~325^2 X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=9aa25d7df865f779d2a77680998bf9ac19e81f35;p=ceph.git doc/cephfs/standby: document mds_join_fs Signed-off-by: Sage Weil --- diff --git a/PendingReleaseNotes b/PendingReleaseNotes index 1579ea026a8d..29a74f65977b 100644 --- a/PendingReleaseNotes +++ b/PendingReleaseNotes @@ -282,3 +282,6 @@ would not allow a pool to ever have completely balanced PGs. For example, if crush requires 1 replica on each of 3 racks, but there are fewer OSDs in 1 of the racks. In those cases, the configuration value can be increased. + +* MDS daemons can now be assigned to manage a particular file system via the + new ``mds_join_fs`` option. diff --git a/doc/cephfs/standby.rst b/doc/cephfs/standby.rst index 12a723774061..b50378397aef 100644 --- a/doc/cephfs/standby.rst +++ b/doc/cephfs/standby.rst @@ -26,6 +26,10 @@ A daemon has a *name* that is set statically by the administrator when the daemon is first configured. Typical configurations use the hostname where the daemon runs as the daemon name. +A ceph-mds daemons can be assigned to a particular file system by +setting the `mds_join_fs` configuration option to the file system +name. + Each time a daemon starts up, it is also assigned a *GID*, which is unique to this particular process lifetime of the daemon. The GID is an integer.