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v0.67
~~~~~
* The output of 'ceph status --format=json' or 'ceph -s --format=json'
has changed to return status information in a more structured and
usable format.
* The 'ceph pg dump_stuck [threshold]' command used to require a
--threshold or -t prefix to the threshold argument, but now does
not.
* Many more ceph commands now output formatted information; select
with '--format=<format>', where <format> can be 'json', 'json-pretty',
'xml', or 'xml-pretty'.
* ceph-rest-api, a wrapper around ceph_rest_api.py, can be used to start
up a test single-threaded HTTP server that provides access to cluster
information and administration in very similar ways to the ceph
commandline tool. ceph_rest_api.py can be used as a WSGI application
for deployment in a more-capable web server. See ceph-rest-api.8
for more.
* rgw copy object operation may return extra progress info during the
operation. At this point it will only happen when doing cross zone
copy operations. The S3 response will now return extra <Progress>
field under the <CopyResult> container. The Swift response will
now send the progress as a json array.
* ceph-osd now requires a max fd limit of at least
filestore_wbthrottle_(xfs|btrfs)_inodes_hard_limit (5000 by default)
in order to accomodate the new write back throttle system. upstart
now sets the fd limit to 32k. sysvinit will set it to 32k by default
(still overrideable via max_open_files).
* The 'ceph pg <pgid> ...' commands (like 'ceph pg <pgid> query') are
deprecated in favor of 'ceph tell <pgid> ...'. This makes the
distinction between 'ceph pg <command> <pgid>' and 'ceph pg <pgid>
<command>' less awkward by making it clearer that the 'tell'
commands are talking to the OSD serving the placement group, not the
monitor.
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