ceph/PendingReleaseNotes
Sage Weil cf4ec5a8aa osd: change osd_crush_initial_weight = 0 to mean weight to 0
Negative now means auto-weight, 0 means weight to 0.  Change the
default accordingly.

Signed-off-by: Sage Weil <sage@redhat.com>
2016-05-09 08:55:00 -04:00

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11.0.0
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* If you have manually specified the monitor user rocksdb via the
``mon keyvaluedb = rocksdb`` option, you will need to manually add a file
to the mon data directory to preserve this option::
echo rocksdb > /var/lib/ceph/mon/ceph-`hostname`/kv_backend
New monitors will now use rocksdb by default, but if that file is
not present, existing monitors will use leveldb. The ``mon keyvaluedb`` option
now only affects the backend chosen when a monitor is created.
* The 'osd crush initial weight' option allows you to specify a CRUSH
weight for a newly added OSD. Previously a value of 0 (the default)
meant that we should use the size of the OSD's store to weight the
new OSD. Now, a value of 0 means it should have a weight of 0, and
a negative value (the new default) means we should automatically
weight the OSD based on its size. If your configuration file
explicitly specifies a value of 0 for this option you will need to
change it to a negative value (e.g., -1) to preserve the current
behavior.