--- /dev/null
+=====
+Giant
+=====
+
+Giant is the 7th stable release of Ceph. It is named after the giant
+squid (Architeuthis dux).
+
+
+v0.87.2 Giant
+=============
+
+This is the second (and possibly final) point release for Giant.
+
+We recommend all v0.87.x Giant users upgrade to this release.
+
+Notable Changes
+---------------
+
+* ceph-objectstore-tool: only output unsupported features when incompatible (#11176 David Zafman)
+* common: do not implicitly unlock rwlock on destruction (Federico Simoncelli)
+* common: make wait timeout on empty queue configurable (#10818 Samuel Just)
+* crush: pick ruleset id that matches and rule id (Xiaoxi Chen)
+* crush: set_choose_tries = 100 for new erasure code rulesets (#10353 Loic Dachary)
+* librados: check initialized atomic safely (#9617 Josh Durgin)
+* librados: fix failed tick_event assert (#11183 Zhiqiang Wang)
+* librados: fix looping on skipped maps (#9986 Ding Dinghua)
+* librados: fix op submit with timeout (#10340 Samuel Just)
+* librados: pybind: fix memory leak (#10723 Billy Olsen)
+* librados: pybind: keep reference to callbacks (#10775 Josh Durgin)
+* librados: translate operation flags from C APIs (Matthew Richards)
+* libradosstriper: fix write_full on ENOENT (#10758 Sebastien Ponce)
+* libradosstriper: use strtoll instead of strtol (Dongmao Zhang)
+* mds: fix assertion caused by system time moving backwards (#11053 Yan, Zheng)
+* mon: allow injection of random delays on writes (Joao Eduardo Luis)
+* mon: do not trust small osd epoch cache values (#10787 Sage Weil)
+* mon: fail non-blocking flush if object is being scrubbed (#8011 Samuel Just)
+* mon: fix division by zero in stats dump (Joao Eduardo Luis)
+* mon: fix get_rule_avail when no osds (#10257 Joao Eduardo Luis)
+* mon: fix timeout rounds period (#10546 Joao Eduardo Luis)
+* mon: ignore osd failures before up_from (#10762 Dan van der Ster, Sage Weil)
+* mon: paxos: reset accept timeout before writing to store (#10220 Joao Eduardo Luis)
+* mon: return if fs exists on 'fs new' (Joao Eduardo Luis)
+* mon: use EntityName when expanding profiles (#10844 Joao Eduardo Luis)
+* mon: verify cross-service proposal preconditions (#10643 Joao Eduardo Luis)
+* mon: wait for osdmon to be writeable when requesting proposal (#9794 Joao Eduardo Luis)
+* mount.ceph: avoid spurious error message about /etc/mtab (#10351 Yan, Zheng)
+* msg/simple: allow RESETSESSION when we forget an endpoint (#10080 Greg Farnum)
+* msg/simple: discard delay queue before incoming queue (#9910 Sage Weil)
+* osd: clear_primary_state when leaving Primary (#10059 Samuel Just)
+* osd: do not ignore deleted pgs on startup (#10617 Sage Weil)
+* osd: fix FileJournal wrap to get header out first (#10883 David Zafman)
+* osd: fix PG leak in SnapTrimWQ (#10421 Kefu Chai)
+* osd: fix journalq population in do_read_entry (#6003 Samuel Just)
+* osd: fix operator== for op_queue_age_hit and fs_perf_stat (#10259 Samuel Just)
+* osd: fix rare assert after split (#10430 David Zafman)
+* osd: get pgid ancestor from last_map when building past intervals (#10430 David Zafman)
+* osd: include rollback_info_trimmed_to in {read,write}_log (#10157 Samuel Just)
+* osd: lock header_lock in DBObjectMap::sync (#9891 Samuel Just)
+* osd: requeue blocked op before flush it was blocked on (#10512 Sage Weil)
+* osd: tolerate missing object between list and attr get on backfill (#10150 Samuel Just)
+* osd: use correct atime for eviction decision (Xinze Chi)
+* rgw: flush XML header on get ACL request (#10106 Yehuda Sadeh)
+* rgw: index swift keys appropriately (#10471 Hemant Bruman, Yehuda Sadeh)
+* rgw: send cancel for bucket index pending ops (#10770 Baijiaruo, Yehuda Sadeh)
+* rgw: swift: support X_Remove_Container-Meta-{key} (#01475 Dmytro Iurchenko)
+
+For more detailed information, see :download:`the complete changelog <../changelog/v0.87.2.txt>`.
+
+v0.87.1 Giant
+=============
+
+This is the first (and possibly final) point release for Giant. Our focus
+on stability fixes will be directed towards Hammer and Firefly.
+
+We recommend that all v0.87 Giant users upgrade to this release.
+
+Upgrading
+---------
+
+* Due to a change in the Linux kernel version 3.18 and the limits of the FUSE
+ interface, ceph-fuse needs be mounted as root on at least some systems. See
+ issues #9997, #10277, and #10542 for details.
+
+Notable Changes
+---------------
+
+* build: disable stack-execute bit on assembler objects (#10114 Dan Mick)
+* build: support boost 1.57.0 (#10688 Ken Dreyer)
+* ceph-disk: fix dmcrypt file permissions (#9785 Loic Dachary)
+* ceph-disk: run partprobe after zap, behave with partx or partprobe (#9665 #9721 Loic Dachary)
+* cephfs-journal-tool: fix import for aged journals (#9977 John Spray)
+* cephfs-journal-tool: fix journal import (#10025 John Spray)
+* ceph-fuse: use remount to trim kernel dcache (#10277 Yan, Zheng)
+* common: add cctid meta variable (#6228 Adam Crume)
+* common: fix dump of shard for ghobject_t (#10063 Loic Dachary)
+* crush: fix bucket weight underflow (#9998 Pawel Sadowski)
+* erasure-code: enforce chunk size alignment (#10211 Loic Dachary)
+* erasure-code: regression test suite (#9420 Loic Dachary)
+* erasure-code: relax caucy w restrictions (#10325 Loic Dachary)
+* libcephfs,ceph-fuse: allow xattr caps on inject_release_failure (#9800 John Spray)
+* libcephfs,ceph-fuse: fix cap flush tid comparison (#9869 Greg Farnum)
+* libcephfs,ceph-fuse: new flag to indicated sorted dcache (#9178 Yan, Zheng)
+* libcephfs,ceph-fuse: prune cache before reconnecting to MDS (Yan, Zheng)
+* librados: limit number of in-flight read requests (#9854 Jason Dillaman)
+* libradospy: fix thread shutdown (#8797 Dan Mick)
+* libradosstriper: fix locking issue in truncate (#10129 Sebastien Ponce)
+* librbd: complete pending ops before closing mage (#10299 Jason Dillaman)
+* librbd: fix error path on image open failure (#10030 Jason Dillaman)
+* librbd: gracefully handle deleted/renamed pools (#10270 Jason Dillaman)
+* librbd: handle errors when creating ioctx while listing children (#10123 Jason Dillaman)
+* mds: fix compat version in MClientSession (#9945 John Spray)
+* mds: fix journaler write error handling (#10011 John Spray)
+* mds: fix locking for file size recovery (#10229 Yan, Zheng)
+* mds: handle heartbeat_reset during shutdown (#10382 John Spray)
+* mds: store backtrace for straydir (Yan, Zheng)
+* mon: allow tiers for FS pools (#10135 John Spray)
+* mon: fix caching of last_epoch_clean, osdmap trimming (#9987 Sage Weil)
+* mon: fix 'fs ls' on peons (#10288 John Spray)
+* mon: fix MDS health status from peons (#10151 John Spray)
+* mon: fix paxos off-by-one (#9301 Sage Weil)
+* msgr: simple: do not block on takeover while holding global lock (#9921 Greg Farnum)
+* osd: deep scrub must not abort if hinfo is missing (#10018 Loic Dachary)
+* osd: fix misdirected op detection (#9835 Sage Weil)
+* osd: fix past_interval display for acting (#9752 Loic Dachary)
+* osd: fix PG peering backoff when behind on osdmaps (#10431 Sage Weil)
+* osd: handle no-op write with snapshot case (#10262 Ssage Weil)
+* osd: use fast-dispatch (Sage Weil, Greg Farnum)
+* rados: fix write to /dev/null (Loic Dachary)
+* radosgw-admin: create subuser when needed (#10103 Yehuda Sadeh)
+* rbd: avoid invalidating aio_write buffer during image import (#10590 Jason Dillaman)
+* rbd: fix export with images > 2GB (Vicente Cheng)
+* rgw: change multipart upload id magic (#10271 Georgios Dimitrakakis, Yehuda Sadeh)
+* rgw: check keystone auth for S3 POST (#10062 Abhishek Lekshmanan)
+* rgw: check timestamp for S3 keystone auth (#10062 Abhishek Lekshmanan)
+* rgw: fix partial GET with swift (#10553 Yehuda Sadeh)
+* rgw: fix quota disable (#9907 Dong Lei)
+* rgw: fix rare corruption of object metadata on put (#9576 Yehuda Sadeh)
+* rgw: fix S3 object copy content-type (#9478 Yehuda Sadeh)
+* rgw: headers end with \r\n (#9254 Benedikt Fraunhofer, Yehuda Sadeh)
+* rgw: remove swift user manifest DLO hash calculation (#9973 Yehuda Sadeh)
+* rgw: return correct len when len is 0 (#9877 Yehuda Sadeh)
+* rgw: return X-Timestamp field (#8911 Yehuda Sadeh)
+* rgw: run radosgw as apache with systemd (#10125)
+* rgw: sent ETag on S3 object copy (#9479 Yehuda Sadeh)
+* rgw: sent HTTP status reason explicitly in fastcgi (Yehuda Sadeh)
+* rgw: set length for keystone token validation (#7796 Mark Kirkwood, Yehuda Sadeh)
+* rgw: set ulimit -n on sysvinit before starting daemon (#9587 Sage Weil)
+* rgw: update bucket index on set_attrs (#5595 Yehuda Sadeh)
+* rgw: update swift subuser permission masks when authenticating (#9918 Yehuda Sadeh)
+* rgw: URL decode HTTP query params correction (#10271 Georgios Dimitrakakis, Yehuda Sadeh)
+* rgw: use cached attrs while reading object attrs (#10307 Yehuda Sadeh)
+* rgw: use strict_strtoll for content length (#10701 Axel Dunkel, Yehuda Sadeh)
+
+For more detailed information, see :download:`the complete changelog <../changelog/v0.87.1.txt>`.
+
+
+
+v0.87 Giant
+===========
+
+This release will form the basis for the stable release Giant,
+v0.87.x. Highlights for Giant include:
+
+* *RADOS Performance*: a range of improvements have been made in the
+ OSD and client-side librados code that improve the throughput on
+ flash backends and improve parallelism and scaling on fast machines.
+* *CephFS*: we have fixed a raft of bugs in CephFS and built some
+ basic journal recovery and diagnostic tools. Stability and
+ performance of single-MDS systems is vastly improved in Giant.
+ Although we do not yet recommend CephFS for production deployments,
+ we do encourage testing for non-critical workloads so that we can
+ better gauge the feature, usability, performance, and stability
+ gaps.
+* *Local Recovery Codes*: the OSDs now support an erasure-coding scheme
+ that stores some additional data blocks to reduce the IO required to
+ recover from single OSD failures.
+* *Degraded vs misplaced*: the Ceph health reports from 'ceph -s' and
+ related commands now make a distinction between data that is
+ degraded (there are fewer than the desired number of copies) and
+ data that is misplaced (stored in the wrong location in the
+ cluster). The distinction is important because the latter does not
+ compromise data safety.
+* *Tiering improvements*: we have made several improvements to the
+ cache tiering implementation that improve performance. Most
+ notably, objects are not promoted into the cache tier by a single
+ read; they must be found to be sufficiently hot before that happens.
+* *Monitor performance*: the monitors now perform writes to the local
+ data store asynchronously, improving overall responsiveness.
+* *Recovery tools*: the ceph_objectstore_tool is greatly expanded to
+ allow manipulation of an individual OSDs data store for debugging
+ and repair purposes. This is most heavily used by our QA
+ infrastructure to exercise recovery code.
+
+Upgrade Sequencing
+------------------
+
+* If your existing cluster is running a version older than v0.80.x
+ Firefly, please first upgrade to the latest Firefly release before
+ moving on to Giant. We have not tested upgrades directly from
+ Emperor, Dumpling, or older releases.
+
+ We *have* tested:
+
+ * Firefly to Giant
+ * Dumpling to Firefly to Giant
+
+* Please upgrade daemons in the following order:
+
+ #. Monitors
+ #. OSDs
+ #. MDSs and/or radosgw
+
+ Note that the relative ordering of OSDs and monitors should not matter, but
+ we primarily tested upgrading monitors first.
+
+Upgrading from v0.80x Firefly
+-----------------------------
+
+* The client-side caching for librbd is now enabled by default (rbd
+ cache = true). A safety option (rbd cache writethrough until flush
+ = true) is also enabled so that writeback caching is not used until
+ the library observes a 'flush' command, indicating that the librbd
+ users is passing that operation through from the guest VM. This
+ avoids potential data loss when used with older versions of qemu
+ that do not support flush.
+
+ leveldb_write_buffer_size = 8*1024*1024 = 33554432 // 8MB
+ leveldb_cache_size = 512*1024*1204 = 536870912 // 512MB
+ leveldb_block_size = 64*1024 = 65536 // 64KB
+ leveldb_compression = false
+ leveldb_log = ""
+
+ OSDs will still maintain the following osd-specific defaults:
+
+ leveldb_log = ""
+
+* The 'rados getxattr ...' command used to add a gratuitous newline to the attr
+ value; it now does not.
+
+* The ``*_kb perf`` counters on the monitor have been removed. These are
+ replaced with a new set of ``*_bytes`` counters (e.g., ``cluster_osd_kb`` is
+ replaced by ``cluster_osd_bytes``).
+
+* The ``rd_kb`` and ``wr_kb`` fields in the JSON dumps for pool stats (accessed
+ via the ``ceph df detail -f json-pretty`` and related commands) have been
+ replaced with corresponding ``*_bytes`` fields. Similarly, the
+ ``total_space``, ``total_used``, and ``total_avail`` fields are replaced with
+ ``total_bytes``, ``total_used_bytes``, and ``total_avail_bytes`` fields.
+
+* The ``rados df --format=json`` output ``read_bytes`` and ``write_bytes``
+ fields were incorrectly reporting ops; this is now fixed.
+
+* The ``rados df --format=json`` output previously included ``read_kb`` and
+ ``write_kb`` fields; these have been removed. Please use ``read_bytes`` and
+ ``write_bytes`` instead (and divide by 1024 if appropriate).
+
+* The experimental keyvaluestore-dev OSD backend had an on-disk format
+ change that prevents existing OSD data from being upgraded. This
+ affects developers and testers only.
+
+* mon-specific and osd-specific leveldb options have been removed.
+ From this point onward users should use the `leveldb_*` generic
+ options and add the options in the appropriate sections of their
+ configuration files. Monitors will still maintain the following
+ monitor-specific defaults:
+
+ leveldb_write_buffer_size = 8*1024*1024 = 33554432 // 8MB
+ leveldb_cache_size = 512*1024*1204 = 536870912 // 512MB
+ leveldb_block_size = 64*1024 = 65536 // 64KB
+ leveldb_compression = false
+ leveldb_log = ""
+
+ OSDs will still maintain the following osd-specific defaults:
+
+ leveldb_log = ""
+
+* CephFS support for the legacy anchor table has finally been removed.
+ Users with file systems created before firefly should ensure that inodes
+ with multiple hard links are modified *prior* to the upgrade to ensure that
+ the backtraces are written properly. For example::
+
+ sudo find /mnt/cephfs -type f -links +1 -exec touch \{\} \;
+
+* We disallow nonsensical 'tier cache-mode' transitions. From this point
+ onward, 'writeback' can only transition to 'forward' and 'forward'
+ can transition to 1) 'writeback' if there are dirty objects, or 2) any if
+ there are no dirty objects.
+
+Notable Changes since v0.86
+---------------------------
+
+* ceph-disk: use new udev rules for centos7/rhel7 (#9747 Loic Dachary)
+* libcephfs-java: fix fstat mode (Noah Watkins)
+* librados: fix deadlock when listing PG contents (Guang Yang)
+* librados: misc fixes to the new threading model (#9582 #9706 #9845 #9873 Sage Weil)
+* mds: fix inotable initialization (Henry C Chang)
+* mds: gracefully handle unknown lock type in flock requests (Yan, Zheng)
+* mon: add read-only, read-write, and role-definer rols (Joao Eduardo Luis)
+* mon: fix mon cap checks (Joao Eduardo Luis)
+* mon: misc fixes for new paxos async writes (#9635 Sage Weil)
+* mon: set scrub timestamps on PG creation (#9496 Joao Eduardo Luis)
+* osd: erasure code: fix buffer alignment (Janne Grunau, Loic Dachary)
+* osd: fix alloc hint induced crashes on mixed clusters (#9419 David Zafman)
+* osd: fix backfill reservation release on rejection (#9626, Samuel Just)
+* osd: fix ioprio option parsing (#9676 #9677 Loic Dachary)
+* osd: fix memory leak during snap trimming (#9113 Samuel Just)
+* osd: misc peering and recovery fixes (#9614 #9696 #9731 #9718 #9821 #9875 Samuel Just, Guang Yang)
+
+Notable Changes since v0.80.x Firefly
+-------------------------------------
+
+* bash completion improvements (Wido den Hollander)
+* brag: fixes, improvements (Loic Dachary)
+* buffer: improve rebuild_page_aligned (Ma Jianpeng)
+* build: fix build on alpha (Michael Cree, Dmitry Smirnov)
+* build: fix CentOS 5 (Gerben Meijer)
+* build: fix yasm check for x32 (Daniel Schepler, Sage Weil)
+* ceph-brag: add tox tests (Alfredo Deza)
+* ceph-conf: flush log on exit (Sage Weil)
+* ceph.conf: update sample (Sebastien Han)
+* ceph-dencoder: refactor build a bit to limit dependencies (Sage Weil, Dan Mick)
+* ceph-disk: add Scientific Linux support (Dan van der Ster)
+* ceph-disk: do not inadvertantly create directories (Owne Synge)
+* ceph-disk: fix dmcrypt support (Sage Weil)
+* ceph-disk: fix dmcrypt support (Stephen Taylor)
+* ceph-disk: handle corrupt volumes (Stuart Longlang)
+* ceph-disk: linter cleanup, logging improvements (Alfredo Deza)
+* ceph-disk: partprobe as needed (Eric Eastman)
+* ceph-disk: show information about dmcrypt in 'ceph-disk list' output (Sage Weil)
+* ceph-disk: use partition type UUIDs and blkid (Sage Weil)
+* ceph: fix for non-default cluster names (#8944, Dan Mick)
+* ceph-fuse, libcephfs: asok hooks for handling session resets, timeouts (Yan, Zheng)
+* ceph-fuse, libcephfs: fix crash in trim_caps (John Spray)
+* ceph-fuse, libcephfs: improve cap trimming (John Spray)
+* ceph-fuse, libcephfs: improve traceless reply handling (Sage Weil)
+* ceph-fuse, libcephfs: virtual xattrs for rstat (Yan, Zheng)
+* ceph_objectstore_tool: vastly improved and extended tool for working offline with OSD data stores (David Zafman)
+* ceph.spec: many fixes (Erik Logtenberg, Boris Ranto, Dan Mick, Sandon Van Ness)
+* ceph.spec: split out ceph-common package, other fixes (Sandon Van Ness)
+* ceph_test_librbd_fsx: fix RNG, make deterministic (Ilya Dryomov)
+* cephtool: fix help (Yilong Zhao)
+* cephtool: refactor and improve CLI tests (Joao Eduardo Luis)
+* cephtool: test cleanup (Joao Eduardo Luis)
+* clang build fixes (John Spray, Danny Al-Gaaf)
+* client: improved MDS session dumps (John Spray)
+* common: add config diff admin socket command (Joao Eduardo Luis)
+* common: add rwlock assertion checks (Yehuda Sadeh)
+* common: fix dup log messages (#9080, Sage Weil)
+* common: perfcounters now use atomics and go faster (Sage Weil)
+* config: support G, M, K, etc. suffixes (Joao Eduardo Luis)
+* coverity cleanups (Danny Al-Gaaf)
+* crush: clean up CrushWrapper interface (Xioaxi Chen)
+* crush: include new tunables in dump (Sage Weil)
+* crush: make ruleset ids unique (Xiaoxi Chen, Loic Dachary)
+* crush: only require rule features if the rule is used (#8963, Sage Weil)
+* crushtool: send output to stdout, not stderr (Wido den Hollander)
+* doc: cache tiering (John Wilkins)
+* doc: CRUSH updates (John Wilkins)
+* doc: document new upstream wireshark dissector (Kevin Cox)
+* doc: improve manual install docs (Francois Lafont)
+* doc: keystone integration docs (John Wilkins)
+* doc: librados example fixes (Kevin Dalley)
+* doc: many doc updates (John Wilkins)
+* doc: many install doc updates (John Wilkins)
+* doc: misc updates (John Wilkins, Loic Dachary, David Moreau Simard, Wido den Hollander. Volker Voigt, Alfredo Deza, Stephen Jahl, Dan van der Ster)
+* doc: osd primary affinity (John Wilkins)
+* doc: pool quotas (John Wilkins)
+* doc: pre-flight doc improvements (Kevin Dalley)
+* doc: switch to an unencumbered font (Ross Turk)
+* doc: updated simple configuration guides (John Wilkins)
+* doc: update erasure docs (Loic Dachary, Venky Shankar)
+* doc: update openstack docs (Josh Durgin)
+* filestore: disable use of XFS hint (buggy on old kernels) (Samuel Just)
+* filestore: fix xattr spillout (Greg Farnum, Haomai Wang)
+* fix hppa arch build (Dmitry Smirnov)
+* fix i386 builds (Sage Weil)
+* fix struct vs class inconsistencies (Thorsten Behrens)
+* global: write pid file even when running in foreground (Alexandre Oliva)
+* hadoop: improve tests (Huamin Chen, Greg Farnum, John Spray)
+* hadoop: update hadoop tests for Hadoop 2.0 (Haumin Chen)
+* init-ceph: continue starting other daemons on crush or mount failure (#8343, Sage Weil)
+* journaler: fix locking (Zheng, Yan)
+* keyvaluestore: fix hint crash (#8381, Haomai Wang)
+* keyvaluestore: header cache (Haomai Wang)
+* libcephfs-java: build against older JNI headers (Greg Farnum)
+* libcephfs-java: fix gcj-jdk build (Dmitry Smirnov)
+* librados: fix crash on read op timeout (#9362 Matthias Kiefer, Sage Weil)
+* librados: fix lock leaks in error paths (#9022, Paval Rallabhandi)
+* librados: fix pool existence check (#8835, Pavan Rallabhandi)
+* librados: fix rados_pool_list bounds checks (Sage Weil)
+* librados: fix shutdown race (#9130 Sage Weil)
+* librados: fix watch/notify test (#7934 David Zafman)
+* librados: fix watch reregistration on acting set change (#9220 Samuel Just)
+* librados: give Objecter fine-grained locks (Yehuda Sadeh, Sage Weil, John Spray)
+* librados: lttng tracepoitns (Adam Crume)
+* librados, osd: return ETIMEDOUT on failed notify (Sage Weil)
+* librados: pybind: fix reads when \0 is present (#9547 Mohammad Salehe)
+* librados_striper: striping library for librados (Sebastien Ponce)
+* librbd, ceph-fuse: reduce cache flush overhead (Haomai Wang)
+* librbd: check error code on cache invalidate (Josh Durgin)
+* librbd: enable caching by default (Sage Weil)
+* librbd: enforce cache size on read requests (Jason Dillaman)
+* librbd: fix crash using clone of flattened image (#8845, Josh Durgin)
+* librbd: fix error path when opening image (#8912, Josh Durgin)
+* librbd: handle blacklisting during shutdown (#9105 John Spray)
+* librbd: lttng tracepoints (Adam Crume)
+* librbd: new libkrbd library for kernel map/unmap/showmapped (Ilya Dryomov)
+* librbd: store and retrieve snapshot metadata based on id (Josh Durgin)
+* libs3: update to latest (Danny Al-Gaaf)
+* log: fix derr level (Joao Eduardo Luis)
+* logrotate: fix osd log rotation on ubuntu (Sage Weil)
+* lttng: tracing infrastructure (Noah Watkins, Adam Crume)
+* mailmap: many updates (Loic Dachary)
+* mailmap: updates (Loic Dachary, Abhishek Lekshmanan, M Ranga Swami Reddy)
+* Makefile: fix out of source builds (Stefan Eilemann)
+* many many coverity fixes, cleanups (Danny Al-Gaaf)
+* mds: adapt to new Objecter locking, give types to all Contexts (John Spray)
+* mds: add file system name, enabled flag (John Spray)
+* mds: add internal health checks (John Spray)
+* mds: add min/max UID for snapshot creation/deletion (#9029, Wido den Hollander)
+* mds: avoid tight mon reconnect loop (#9428 Sage Weil)
+* mds: boot refactor, cleanup (John Spray)
+* mds: cephfs-journal-tool (John Spray)
+* mds: fix crash killing sessions (#9173 John Spray)
+* mds: fix ctime updates (#9514 Greg Farnum)
+* mds: fix journal conversion with standby-replay (John Spray)
+* mds: fix replay locking (Yan, Zheng)
+* mds: fix standby-replay cache trimming (#8648 Zheng, Yan)
+* mds: fix xattr bug triggered by ACLs (Yan, Zheng)
+* mds: give perfcounters meaningful names (Sage Weil)
+* mds: improve health reporting to monitor (John Spray)
+* mds: improve Journaler on-disk format (John Spray)
+* mds: improve journal locking (Zheng, Yan)
+* mds, libcephfs: use client timestamp for mtime/ctime (Sage Weil)
+* mds: make max file recoveries tunable (Sage Weil)
+* mds: misc encoding improvements (John Spray)
+* mds: misc fixes for multi-mds (Yan, Zheng)
+* mds: multi-mds fixes (Yan, Zheng)
+* mds: OPTracker integration, dump_ops_in_flight (Greg Farnum)
+* mds: prioritize file recovery when appropriate (Sage Weil)
+* mds: refactor beacon, improve reliability (John Spray)
+* mds: remove legacy anchor table (Yan, Zheng)
+* mds: remove legacy discover ino (Yan, Zheng)
+* mds: restart on EBLACKLISTED (John Spray)
+* mds: separate inode recovery queue (John Spray)
+* mds: session ls, evict commands (John Spray)
+* mds: submit log events in async thread (Yan, Zheng)
+* mds: track RECALL progress, report failure (#9284 John Spray)
+* mds: update segment references during journal write (John Spray, Greg Farnum)
+* mds: use client-provided timestamp for user-visible file metadata (Yan, Zheng)
+* mds: use meaningful names for clients (John Spray)
+* mds: validate journal header on load and save (John Spray)
+* mds: warn clients which aren't revoking caps (Zheng, Yan, John Spray)
+* misc build errors/warnings for Fedora 20 (Boris Ranto)
+* misc build fixes for OS X (John Spray)
+* misc cleanup (Christophe Courtaut)
+* misc integer size cleanups (Kevin Cox)
+* misc memory leaks, cleanups, fixes (Danny Al-Gaaf, Sahid Ferdjaoui)
+* misc suse fixes (Danny Al-Gaaf)
+* misc word size fixes (Kevin Cox)
+* mon: add audit log for all admin commands (Joao Eduardo Luis)
+* mon: add cluster fingerprint (Sage Weil)
+* mon: add get-quota commands (Joao Eduardo Luis)
+* mon: add 'osd blocked-by' command to easily see which OSDs are blocking peering progress (Sage Weil)
+* mon: add 'osd reweight-by-pg' command (Sage Weil, Guang Yang)
+* mon: add perfcounters for paxos operations (Sage Weil)
+* mon: avoid creating unnecessary rule on pool create (#9304 Loic Dachary)
+* monclient: fix hang (Sage Weil)
+* mon: create default EC profile if needed (Loic Dachary)
+* mon: do not create file system by default (John Spray)
+* mon: do not spam log (Aanchal Agrawal, Sage Weil)
+* mon: drop mon- and osd- specific leveldb options (Joao Eduardo Luis)
+* mon: ec pool profile fixes (Loic Dachary)
+* mon: fix bug when no auth keys are present (#8851, Joao Eduardo Luis)
+* mon: fix 'ceph df' output for available space (Xiaoxi Chen)
+* mon: fix compat version for MForward (Joao Eduardo Luis)
+* mon: fix crash on loopback messages and paxos timeouts (#9062, Sage Weil)
+* mon: fix default replication pool ruleset choice (#8373, John Spray)
+* mon: fix divide by zero when pg_num is adjusted before OSDs are added (#9101, Sage Weil)
+* mon: fix double-free of old MOSDBoot (Sage Weil)
+* mon: fix health down messages (Sage Weil)
+* mon: fix occasional memory leak after session reset (#9176, Sage Weil)
+* mon: fix op write latency perfcounter (#9217 Xinxin Shu)
+* mon: fix 'osd perf' reported latency (#9269 Samuel Just)
+* mon: fix quorum feature check (#8738, Greg Farnum)
+* mon: fix ruleset/ruleid bugs (#9044, Loic Dachary)
+* mon: fix set cache_target_full_ratio (#8440, Geoffrey Hartz)
+* mon: fix store check on startup (Joao Eduardo Luis)
+* mon: include per-pool 'max avail' in df output (Sage Weil)
+* mon: make paxos transaction commits asynchronous (Sage Weil)
+* mon: make usage dumps in terms of bytes, not kB (Sage Weil)
+* mon: 'osd crush reweight-subtree ...' (Sage Weil)
+* mon, osd: relax client EC support requirements (Sage Weil)
+* mon: preload erasure plugins (#9153 Loic Dachary)
+* mon: prevent cache pools from being used directly by CephFS (#9435 John Spray)
+* mon: prevent EC pools from being used with cephfs (Joao Eduardo Luis)
+* mon: prevent implicit destruction of OSDs with 'osd setmaxosd ...' (#8865, Anand Bhat)
+* mon: prevent nonsensical cache-mode transitions (Joao Eduardo Luis)
+* mon: restore original weight when auto-marked out OSDs restart (Sage Weil)
+* mon: restrict some pool properties to tiered pools (Joao Eduardo Luis)
+* mon: some instrumentation (Sage Weil)
+* mon: use msg header tid for MMonGetVersionReply (Ilya Dryomov)
+* mon: use user-provided ruleset for replicated pool (Xiaoxi Chen)
+* mon: verify all quorum members are contiguous at end of Paxos round (#9053, Sage Weil)
+* mon: verify available disk space on startup (#9502 Joao Eduardo Luis)
+* mon: verify erasure plugin version on load (Loic Dachary)
+* msgr: avoid big lock when sending (most) messages (Greg Farnum)
+* msgr: fix logged address (Yongyue Sun)
+* msgr: misc locking fixes for fast dispatch (#8891, Sage Weil)
+* msgr: refactor to cleanly separate SimpleMessenger implemenetation, move toward Connection-based calls (Matt Benjamin, Sage Wei)
+* objecter: flag operations that are redirected by caching (Sage Weil)
+* objectstore: clean up KeyValueDB interface for key/value backends (Sage Weil)
+* osd: account for hit_set_archive bytes (Sage Weil)
+* osd: add ability to prehash filestore directories (Guang Yang)
+* osd: add 'dump_reservations' admin socket command (Sage Weil)
+* osd: add feature bit for erasure plugins (Loic Dachary)
+* osd: add header cache for KeyValueStore (Haomai Wang)
+* osd: add ISA erasure plugin table cache (Andreas-Joachim Peters)
+* osd: add local_mtime for use by cache agent (Zhiqiang Wang)
+* osd: add local recovery code (LRC) erasure plugin (Loic Dachary)
+* osd: add prototype KineticStore based on Seagate Kinetic (Josh Durgin)
+* osd: add READFORWARD caching mode (Luis Pabon)
+* osd: add superblock for KeyValueStore backend (Haomai Wang)
+* osd: add support for Intel ISA-L erasure code library (Andreas-Joachim Peters)
+* osd: allow map cache size to be adjusted at runtime (Sage Weil)
+* osd: avoid refcounting overhead by passing a few things by ref (Somnath Roy)
+* osd: avoid sharing PG info that is not durable (Samuel Just)
+* osd: bound osdmap epoch skew between PGs (Sage Weil)
+* osd: cache tier flushing fixes for snapped objects (Samuel Just)
+* osd: cap hit_set size (#9339 Samuel Just)
+* osd: clean up shard_id_t, shard_t (Loic Dachary)
+* osd: clear FDCache on unlink (#8914 Loic Dachary)
+* osd: clear slow request latency info on osd up/down (Sage Weil)
+* osd: do not evict blocked objects (#9285 Zhiqiang Wang)
+* osd: do not skip promote for write-ordered reads (#9064, Samuel Just)
+* osd: fix agent early finish looping (David Zafman)
+* osd: fix ambigous encoding order for blacklisted clients (#9211, Sage Weil)
+* osd: fix bogus assert during OSD shutdown (Sage Weil)
+* osd: fix bug with long object names and rename (#8701, Sage Weil)
+* osd: fix cache flush corner case for snapshotted objects (#9054, Samuel Just)
+* osd: fix cache full -> not full requeueing (#8931, Sage Weil)
+* osd: fix clone deletion case (#8334, Sam Just)
+* osd: fix clone vs cache_evict bug (#8629 Sage Weil)
+* osd: fix connection reconnect race (Greg Farnum)
+* osd: fix crash from duplicate backfill reservation (#8863 Sage Weil)
+* osd: fix dead peer connection checks (#9295 Greg Farnum, Sage Weil)
+* osd: fix discard of old/obsolete subop replies (#9259, Samuel Just)
+* osd: fix discard of peer messages from previous intervals (Greg Farnum)
+* osd: fix dump of open fds on EMFILE (Sage Weil)
+* osd: fix dumps (Joao Eduardo Luis)
+* osd: fix erasure-code lib initialization (Loic Dachary)
+* osd: fix extent normalization (Adam Crume)
+* osd: fix filestore removal corner case (#8332, Sam Just)
+* osd: fix flush vs OpContext (Samuel Just)
+* osd: fix gating of messages from old OSD instances (Greg Farnum)
+* osd: fix hang waiting for osdmap (#8338, Greg Farnum)
+* osd: fix interval check corner case during peering (#8104, Sam Just)
+* osd: fix ISA erasure alignment (Loic Dachary, Andreas-Joachim Peters)
+* osd: fix journal dump (Ma Jianpeng)
+* osd: fix journal-less operation (Sage Weil)
+* osd: fix keyvaluestore scrub (#8589 Haomai Wang)
+* osd: fix keyvaluestore upgrade (Haomai Wang)
+* osd: fix loopback msgr issue (Ma Jianpeng)
+* osd: fix LSB release parsing (Danny Al-Gaaf)
+* osd: fix MarkMeDown and other shutdown races (Sage Weil)
+* osd: fix memstore bugs with collection_move_rename, lock ordering (Sage Weil)
+* osd: fix min_read_recency_for_promote default on upgrade (Zhiqiang Wang)
+* osd: fix mon feature bit requirements bug and resulting log spam (Sage Weil)
+* osd: fix mount/remount sync race (#9144 Sage Weil)
+* osd: fix PG object listing/ordering bug (Guang Yang)
+* osd: fix PG stat errors with tiering (#9082, Sage Weil)
+* osd: fix purged_snap initialization on backfill (Sage Weil, Samuel Just, Dan van der Ster, Florian Haas)
+* osd: fix race condition on object deletion (#9480 Somnath Roy)
+* osd: fix recovery chunk size usage during EC recovery (Ma Jianpeng)
+* osd: fix recovery reservation deadlock for EC pools (Samuel Just)
+* osd: fix removal of old xattrs when overwriting chained xattrs (Ma Jianpeng)
+* osd: fix requesting queueing on PG split (Samuel Just)
+* osd: fix scrub vs cache bugs (Samuel Just)
+* osd: fix snap object writeback from cache tier (#9054 Samuel Just)
+* osd: fix trim of hitsets (Sage Weil)
+* osd: force new xattrs into leveldb if fs returns E2BIG (#7779, Sage Weil)
+* osd: implement alignment on chunk sizes (Loic Dachary)
+* osd: improved backfill priorities (Sage Weil)
+* osd: improve journal shutdown (Ma Jianpeng, Mark Kirkwood)
+* osd: improve locking for KeyValueStore (Haomai Wang)
+* osd: improve locking in OpTracker (Pavan Rallabhandi, Somnath Roy)
+* osd: improve prioritization of recovery of degraded over misplaced objects (Sage Weil)
+* osd: improve tiering agent arithmetic (Zhiqiang Wang, Sage Weil, Samuel Just)
+* osd: include backend information in metadata reported to mon (Sage Weil)
+* osd: locking, sharding, caching improvements in FileStore's FDCache (Somnath Roy, Greg Farnum)
+* osd: lttng tracepoints for filestore (Noah Watkins)
+* osd: make blacklist encoding deterministic (#9211 Sage Weil)
+* osd: make tiering behave if hit_sets aren't enabled (Sage Weil)
+* osd: many important bug fixes (Samuel Just)
+* osd: many many core fixes (Samuel Just)
+* osd: many many important fixes (#8231 #8315 #9113 #9179 #9293 #9294 #9326 #9453 #9481 #9482 #9497 #9574 Samuel Just)
+* osd: mark pools with incomplete clones (Sage Weil)
+* osd: misc erasure code plugin fixes (Loic Dachary)
+* osd: misc locking fixes for fast dispatch (Samuel Just, Ma Jianpeng)
+* osd, mon: add rocksdb support (Xinxin Shu, Sage Weil)
+* osd, mon: config sanity checks on start (Sage Weil, Joao Eduardo Luis)
+* osd, mon: distinguish between "misplaced" and "degraded" objects in cluster health and PG state reporting (Sage Weil)
+* osd, msgr: fast-dispatch of OSD ops (Greg Farnum, Samuel Just)
+* osd, objecter: resend ops on last_force_op_resend barrier; fix cache overlay op ordering (Sage Weil)
+* osd: preload erasure plugins (#9153 Loic Dachary)
+* osd: prevent old rados clients from using tiered pools (#8714, Sage Weil)
+* osd: reduce OpTracker overhead (Somnath Roy)
+* osd: refactor some ErasureCode functionality into command parent class (Loic Dachary)
+* osd: remove obsolete classic scrub code (David Zafman)
+* osd: scrub PGs with invalid stats (Sage Weil)
+* osd: set configurable hard limits on object and xattr names (Sage Weil, Haomai Wang)
+* osd: set rollback_info_completed on create (#8625, Samuel Just)
+* osd: sharded threadpool to improve parallelism (Somnath Roy)
+* osd: shard OpTracker to improve performance (Somnath Roy)
+* osd: simple io prioritization for scrub (Sage Weil)
+* osd: simple scrub throttling (Sage Weil)
+* osd: simple snap trimmer throttle (Sage Weil)
+* osd: tests for bench command (Loic Dachary)
+* osd: trim old EC objects quickly; verify on scrub (Samuel Just)
+* osd: use FIEMAP to inform copy_range (Haomai Wang)
+* osd: use local time for tiering decisions (Zhiqiang Wang)
+* osd: use xfs hint less frequently (Ilya Dryomov)
+* osd: verify erasure plugin version on load (Loic Dachary)
+* osd: work around GCC 4.8 bug in journal code (Matt Benjamin)
+* pybind/rados: fix small timeouts (John Spray)
+* qa: xfstests updates (Ilya Dryomov)
+* rados: allow setxattr value to be read from stdin (Sage Weil)
+* rados bench: fix arg order (Kevin Dalley)
+* rados: drop gratuitous \n from getxattr command (Sage Weil)
+* rados: fix bench write arithmetic (Jiangheng)
+* rados: fix {read,write}_ops values for df output (Sage Weil)
+* rbd: add rbdmap pre- and post post- hooks, fix misc bugs (Dmitry Smirnov)
+* rbd-fuse: allow exposing single image (Stephen Taylor)
+* rbd-fuse: fix unlink (Josh Durgin)
+* rbd: improve option default behavior (Josh Durgin)
+* rbd: parallelize rbd import, export (Jason Dillaman)
+* rbd: rbd-replay utility to replay captured rbd workload traces (Adam Crume)
+* rbd: use write-back (not write-through) when caching is enabled (Jason Dillaman)
+* removed mkcephfs (deprecated since dumpling)
+* rest-api: fix help (Ailing Zhang)
+* rgw: add civetweb as default frontent on port 7490 (#9013 Yehuda Sadeh)
+* rgw: add --min-rewrite-stripe-size for object restriper (Yehuda Sadeh)
+* rgw: add powerdns hook for dynamic DNS for global clusters (Wido den Hollander)
+* rgw: add S3 bucket get location operation (Abhishek Lekshmanan)
+* rgw: allow : in S3 access key (Roman Haritonov)
+* rgw: automatically align writes to EC pool (#8442, Yehuda Sadeh)
+* rgw: bucket link uses instance id (Yehuda Sadeh)
+* rgw: cache bucket info (Yehuda Sadeh)
+* rgw: cache decoded user info (Yehuda Sadeh)
+* rgw: check entity permission for put_metadata (#8428, Yehuda Sadeh)
+* rgw: copy object data is target bucket is in a different pool (#9039, Yehuda Sadeh)
+* rgw: do not try to authenticate CORS preflight requests (#8718, Robert Hubbard, Yehuda Sadeh)
+* rgw: fix admin create user op (#8583 Ray Lv)
+* rgw: fix civetweb URL decoding (#8621, Yehuda Sadeh)
+* rgw: fix crash on swift CORS preflight request (#8586, Yehuda Sadeh)
+* rgw: fix log filename suffix (#9353 Alexandre Marangone)
+* rgw: fix memory leak following chunk read error (Yehuda Sadeh)
+* rgw: fix memory leaks (Andrey Kuznetsov)
+* rgw: fix multipart object attr regression (#8452, Yehuda Sadeh)
+* rgw: fix multipart upload (#8846, Silvain Munaut, Yehuda Sadeh)
+* rgw: fix radosgw-admin 'show log' command (#8553, Yehuda Sadeh)
+* rgw: fix removal of objects during object creation (Patrycja Szablowska, Yehuda Sadeh)
+* rgw: fix striping for copied objects (#9089, Yehuda Sadeh)
+* rgw: fix test for identify whether an object has a tail (#9226, Yehuda Sadeh)
+* rgw: fix URL decoding (#8702, Brian Rak)
+* rgw: fix URL escaping (Yehuda Sadeh)
+* rgw: fix usage (Abhishek Lekshmanan)
+* rgw: fix user manifest (Yehuda Sadeh)
+* rgw: fix when stripe size is not a multiple of chunk size (#8937, Yehuda Sadeh)
+* rgw: handle empty extra pool name (Yehuda Sadeh)
+* rgw: improve civetweb logging (Yehuda Sadeh)
+* rgw: improve delimited listing of bucket, misc fixes (Yehuda Sadeh)
+* rgw: improve -h (Abhishek Lekshmanan)
+* rgw: many fixes for civetweb (Yehuda Sadeh)
+* rgw: misc civetweb fixes (Yehuda Sadeh)
+* rgw: misc civetweb frontend fixes (Yehuda Sadeh)
+* rgw: object and bucket rewrite functions to allow restriping old objects (Yehuda Sadeh)
+* rgw: powerdns backend for global namespaces (Wido den Hollander)
+* rgw: prevent multiobject PUT race (Yehuda Sadeh)
+* rgw: send user manifest header (Yehuda Sadeh)
+* rgw: subuser creation fixes (#8587 Yehuda Sadeh)
+* rgw: use systemd-run from sysvinit script (JuanJose Galvez)
+* rpm: do not restart daemons on upgrade (Alfredo Deza)
+* rpm: misc packaging fixes for rhel7 (Sandon Van Ness)
+* rpm: split ceph-common from ceph (Sandon Van Ness)
+* systemd: initial systemd config files (Federico Simoncelli)
+* systemd: wrap started daemons in new systemd environment (Sage Weil, Dan Mick)
+* sysvinit: add support for non-default cluster names (Alfredo Deza)
+* sysvinit: less sensitive to failures (Sage Weil)
+* test_librbd_fsx: test krbd as well as librbd (Ilya Dryomov)
+* unit test improvements (Loic Dachary)
+* upstart: increase max open files limit (Sage Weil)
+* vstart.sh: fix/improve rgw support (Luis Pabon, Abhishek Lekshmanan)
+
+
+
+
+v0.86
+=====
+
+This is a release candidate for Giant, which will hopefully be out
+in another week or two. We did a feature freeze about a month ago
+and since then have been doing only stabilization and bug fixing (and
+a handful on low-risk enhancements). A fair bit of new functionality
+went into the final sprint, but it's baked for quite a while now and
+we're feeling pretty good about it.
+
+Major items include:
+
+* librados locking refactor to improve scaling and client performance
+* local recovery code (LRC) erasure code plugin to trade some
+ additional storage overhead for improved recovery performance
+* LTTNG tracing framework, with initial tracepoints in librados,
+ librbd, and the OSD FileStore backend
+* separate monitor audit log for all administrative commands
+* asynchronous monitor transaction commits to reduce the impact on
+ monitor read requests while processing updates
+* low-level tool for working with individual OSD data stores for
+ debugging, recovery, and testing
+* many MDS improvements (bug fixes, health reporting)
+
+There are still a handful of known bugs in this release, but nothing
+severe enough to prevent a release. By and large we are pretty
+pleased with the stability and expect the final Giant release to be
+quite reliable.
+
+Please try this out on your non-production clusters for a preview
+
+Notable Changes
+---------------
+
+* buffer: improve rebuild_page_aligned (Ma Jianpeng)
+* build: fix CentOS 5 (Gerben Meijer)
+* build: fix build on alpha (Michael Cree, Dmitry Smirnov)
+* build: fix yasm check for x32 (Daniel Schepler, Sage Weil)
+* ceph-disk: add Scientific Linux support (Dan van der Ster)
+* ceph-fuse, libcephfs: fix crash in trim_caps (John Spray)
+* ceph-fuse, libcephfs: improve cap trimming (John Spray)
+* ceph-fuse, libcephfs: virtual xattrs for rstat (Yan, Zheng)
+* ceph.conf: update sample (Sebastien Han)
+* ceph.spec: many fixes (Erik Logtenberg, Boris Ranto, Dan Mick, Sandon Van Ness)
+* ceph_objectstore_tool: vastly improved and extended tool for working offline with OSD data stores (David Zafman)
+* common: add config diff admin socket command (Joao Eduardo Luis)
+* common: add rwlock assertion checks (Yehuda Sadeh)
+* crush: clean up CrushWrapper interface (Xioaxi Chen)
+* crush: make ruleset ids unique (Xiaoxi Chen, Loic Dachary)
+* doc: improve manual install docs (Francois Lafont)
+* doc: misc updates (John Wilkins, Loic Dachary, David Moreau Simard, Wido den Hollander. Volker Voigt, Alfredo Deza, Stephen Jahl, Dan van der Ster)
+* global: write pid file even when running in foreground (Alexandre Oliva)
+* hadoop: improve tests (Huamin Chen, Greg Farnum, John Spray)
+* journaler: fix locking (Zheng, Yan)
+* librados, osd: return ETIMEDOUT on failed notify (Sage Weil)
+* librados: fix crash on read op timeout (#9362 Matthias Kiefer, Sage Weil)
+* librados: fix shutdown race (#9130 Sage Weil)
+* librados: fix watch reregistration on acting set change (#9220 Samuel Just)
+* librados: fix watch/notify test (#7934 David Zafman)
+* librados: give Objecter fine-grained locks (Yehuda Sadeh, Sage Weil, John Spray)
+* librados: lttng tracepoitns (Adam Crume)
+* librados: pybind: fix reads when \0 is present (#9547 Mohammad Salehe)
+* librbd: enforce cache size on read requests (Jason Dillaman)
+* librbd: handle blacklisting during shutdown (#9105 John Spray)
+* librbd: lttng tracepoints (Adam Crume)
+* lttng: tracing infrastructure (Noah Watkins, Adam Crume)
+* mailmap: updates (Loic Dachary, Abhishek Lekshmanan, M Ranga Swami Reddy)
+* many many coverity fixes, cleanups (Danny Al-Gaaf)
+* mds: adapt to new Objecter locking, give types to all Contexts (John Spray)
+* mds: add internal health checks (John Spray)
+* mds: avoid tight mon reconnect loop (#9428 Sage Weil)
+* mds: fix crash killing sessions (#9173 John Spray)
+* mds: fix ctime updates (#9514 Greg Farnum)
+* mds: fix replay locking (Yan, Zheng)
+* mds: fix standby-replay cache trimming (#8648 Zheng, Yan)
+* mds: give perfcounters meaningful names (Sage Weil)
+* mds: improve health reporting to monitor (John Spray)
+* mds: improve journal locking (Zheng, Yan)
+* mds: make max file recoveries tunable (Sage Weil)
+* mds: prioritize file recovery when appropriate (Sage Weil)
+* mds: refactor beacon, improve reliability (John Spray)
+* mds: restart on EBLACKLISTED (John Spray)
+* mds: track RECALL progress, report failure (#9284 John Spray)
+* mds: update segment references during journal write (John Spray, Greg Farnum)
+* mds: use meaningful names for clients (John Spray)
+* mds: warn clients which aren't revoking caps (Zheng, Yan, John Spray)
+* mon: add 'osd reweight-by-pg' command (Sage Weil, Guang Yang)
+* mon: add audit log for all admin commands (Joao Eduardo Luis)
+* mon: add cluster fingerprint (Sage Weil)
+* mon: avoid creating unnecessary rule on pool create (#9304 Loic Dachary)
+* mon: do not spam log (Aanchal Agrawal, Sage Weil)
+* mon: fix 'osd perf' reported latency (#9269 Samuel Just)
+* mon: fix double-free of old MOSDBoot (Sage Weil)
+* mon: fix op write latency perfcounter (#9217 Xinxin Shu)
+* mon: fix store check on startup (Joao Eduardo Luis)
+* mon: make paxos transaction commits asynchronous (Sage Weil)
+* mon: preload erasure plugins (#9153 Loic Dachary)
+* mon: prevent cache pools from being used directly by CephFS (#9435 John Spray)
+* mon: use user-provided ruleset for replicated pool (Xiaoxi Chen)
+* mon: verify available disk space on startup (#9502 Joao Eduardo Luis)
+* mon: verify erasure plugin version on load (Loic Dachary)
+* msgr: fix logged address (Yongyue Sun)
+* osd: account for hit_set_archive bytes (Sage Weil)
+* osd: add ISA erasure plugin table cache (Andreas-Joachim Peters)
+* osd: add ability to prehash filestore directories (Guang Yang)
+* osd: add feature bit for erasure plugins (Loic Dachary)
+* osd: add local recovery code (LRC) erasure plugin (Loic Dachary)
+* osd: cap hit_set size (#9339 Samuel Just)
+* osd: clear FDCache on unlink (#8914 Loic Dachary)
+* osd: do not evict blocked objects (#9285 Zhiqiang Wang)
+* osd: fix ISA erasure alignment (Loic Dachary, Andreas-Joachim Peters)
+* osd: fix clone vs cache_evict bug (#8629 Sage Weil)
+* osd: fix crash from duplicate backfill reservation (#8863 Sage Weil)
+* osd: fix dead peer connection checks (#9295 Greg Farnum, Sage Weil)
+* osd: fix keyvaluestore scrub (#8589 Haomai Wang)
+* osd: fix keyvaluestore upgrade (Haomai Wang)
+* osd: fix min_read_recency_for_promote default on upgrade (Zhiqiang Wang)
+* osd: fix mount/remount sync race (#9144 Sage Weil)
+* osd: fix purged_snap initialization on backfill (Sage Weil, Samuel Just, Dan van der Ster, Florian Haas)
+* osd: fix race condition on object deletion (#9480 Somnath Roy)
+* osd: fix snap object writeback from cache tier (#9054 Samuel Just)
+* osd: improve journal shutdown (Ma Jianpeng, Mark Kirkwood)
+* osd: improve locking in OpTracker (Pavan Rallabhandi, Somnath Roy)
+* osd: improve tiering agent arithmetic (Zhiqiang Wang, Sage Weil, Samuel Just)
+* osd: lttng tracepoints for filestore (Noah Watkins)
+* osd: make blacklist encoding deterministic (#9211 Sage Weil)
+* osd: many many important fixes (#8231 #8315 #9113 #9179 #9293 #9294 #9326 #9453 #9481 #9482 #9497 #9574 Samuel Just)
+* osd: misc erasure code plugin fixes (Loic Dachary)
+* osd: preload erasure plugins (#9153 Loic Dachary)
+* osd: shard OpTracker to improve performance (Somnath Roy)
+* osd: use local time for tiering decisions (Zhiqiang Wang)
+* osd: verify erasure plugin version on load (Loic Dachary)
+* rados: fix bench write arithmetic (Jiangheng)
+* rbd: parallelize rbd import, export (Jason Dillaman)
+* rbd: rbd-replay utility to replay captured rbd workload traces (Adam Crume)
+* rbd: use write-back (not write-through) when caching is enabled (Jason Dillaman)
+* rgw: add S3 bucket get location operation (Abhishek Lekshmanan)
+* rgw: add civetweb as default frontent on port 7490 (#9013 Yehuda Sadeh)
+* rgw: allow : in S3 access key (Roman Haritonov)
+* rgw: fix admin create user op (#8583 Ray Lv)
+* rgw: fix log filename suffix (#9353 Alexandre Marangone)
+* rgw: fix usage (Abhishek Lekshmanan)
+* rgw: many fixes for civetweb (Yehuda Sadeh)
+* rgw: subuser creation fixes (#8587 Yehuda Sadeh)
+* rgw: use systemd-run from sysvinit script (JuanJose Galvez)
+* unit test improvements (Loic Dachary)
+* vstart.sh: fix/improve rgw support (Luis Pabon, Abhishek Lekshmanan)
+
+v0.85
+=====
+
+This is the second-to-last development release before Giant that
+contains new functionality. The big items to land during this cycle
+are the messenger refactoring from Matt Benjamin that lays some
+groundwork for RDMA support, a performance improvement series from
+SanDisk that improves performance on SSDs, lots of improvements to our
+new standalone civetweb-based RGW frontend, and a new 'osd blocked-by'
+mon command that allows admins to easily identify which OSDs are
+blocking peering progress. The other big change is that the OSDs and
+Monitors now distinguish between "misplaced" and "degraded" objects:
+the latter means there are fewer copies than we'd like, while the
+former simply means the are not stored in the locations where we want
+them to be.
+
+Also of note is a change to librbd that enables client-side caching by
+default. This is coupled with another option that makes the cache
+write-through until a "flush" operations is observed: this implies
+that the librbd user (usually a VM guest OS) supports barriers and
+flush and that it is safe for the cache to switch into writeback mode
+without compromising data safety or integrity. It has long been
+recommended practice that these options be enabled (e.g., in OpenStack
+environments) but until now it has not been the default.
+
+We have frozen the tree for the looming Giant release, and the next
+development release will be a release candidate with a final batch of
+new functionality.
+
+Upgrading
+---------
+
+* The client-side caching for librbd is now enabled by default (rbd
+ cache = true). A safety option (rbd cache writethrough until flush
+ = true) is also enabled so that writeback caching is not used until
+ the library observes a 'flush' command, indicating that the librbd
+ users is passing that operation through from the guest VM. This
+ avoids potential data loss when used with older versions of qemu
+ that do not support flush.
+
+ leveldb_write_buffer_size = 32*1024*1024 = 33554432 // 32MB
+ leveldb_cache_size = 512*1024*1204 = 536870912 // 512MB
+ leveldb_block_size = 64*1024 = 65536 // 64KB
+ leveldb_compression = false
+ leveldb_log = ""
+
+ OSDs will still maintain the following osd-specific defaults:
+
+ leveldb_log = ""
+
+* The 'rados getxattr ...' command used to add a gratuitous newline to the attr
+ value; it now does not.
+
+Notable Changes
+---------------
+
+* ceph-disk: do not inadvertantly create directories (Owne Synge)
+* ceph-disk: fix dmcrypt support (Sage Weil)
+* ceph-disk: linter cleanup, logging improvements (Alfredo Deza)
+* ceph-disk: show information about dmcrypt in 'ceph-disk list' output (Sage Weil)
+* ceph-disk: use partition type UUIDs and blkid (Sage Weil)
+* ceph: fix for non-default cluster names (#8944, Dan Mick)
+* doc: document new upstream wireshark dissector (Kevin Cox)
+* doc: many install doc updates (John Wilkins)
+* librados: fix lock leaks in error paths (#9022, Paval Rallabhandi)
+* librados: fix pool existence check (#8835, Pavan Rallabhandi)
+* librbd: enable caching by default (Sage Weil)
+* librbd: fix crash using clone of flattened image (#8845, Josh Durgin)
+* librbd: store and retrieve snapshot metadata based on id (Josh Durgin)
+* mailmap: many updates (Loic Dachary)
+* mds: add min/max UID for snapshot creation/deletion (#9029, Wido den Hollander)
+* misc build errors/warnings for Fedora 20 (Boris Ranto)
+* mon: add 'osd blocked-by' command to easily see which OSDs are blocking peering progress (Sage Weil)
+* mon: add perfcounters for paxos operations (Sage Weil)
+* mon: create default EC profile if needed (Loic Dachary)
+* mon: fix crash on loopback messages and paxos timeouts (#9062, Sage Weil)
+* mon: fix divide by zero when pg_num is adjusted before OSDs are added (#9101, Sage Weil)
+* mon: fix occasional memory leak after session reset (#9176, Sage Weil)
+* mon: fix ruleset/ruleid bugs (#9044, Loic Dachary)
+* mon: make usage dumps in terms of bytes, not kB (Sage Weil)
+* mon: prevent implicit destruction of OSDs with 'osd setmaxosd ...' (#8865, Anand Bhat)
+* mon: verify all quorum members are contiguous at end of Paxos round (#9053, Sage Weil)
+* msgr: refactor to cleanly separate SimpleMessenger implemenetation, move toward Connection-based calls (Matt Benjamin, Sage Wei)
+* objectstore: clean up KeyValueDB interface for key/value backends (Sage Weil)
+* osd: add local_mtime for use by cache agent (Zhiqiang Wang)
+* osd: add superblock for KeyValueStore backend (Haomai Wang)
+* osd: add support for Intel ISA-L erasure code library (Andreas-Joachim Peters)
+* osd: do not skip promote for write-ordered reads (#9064, Samuel Just)
+* osd: fix ambigous encoding order for blacklisted clients (#9211, Sage Weil)
+* osd: fix cache flush corner case for snapshotted objects (#9054, Samuel Just)
+* osd: fix discard of old/obsolete subop replies (#9259, Samuel Just)
+* osd: fix discard of peer messages from previous intervals (Greg Farnum)
+* osd: fix dump of open fds on EMFILE (Sage Weil)
+* osd: fix journal dump (Ma Jianpeng)
+* osd: fix mon feature bit requirements bug and resulting log spam (Sage Weil)
+* osd: fix recovery chunk size usage during EC recovery (Ma Jianpeng)
+* osd: fix recovery reservation deadlock for EC pools (Samuel Just)
+* osd: fix removal of old xattrs when overwriting chained xattrs (Ma Jianpeng)
+* osd: fix requesting queueing on PG split (Samuel Just)
+* osd: force new xattrs into leveldb if fs returns E2BIG (#7779, Sage Weil)
+* osd: implement alignment on chunk sizes (Loic Dachary)
+* osd: improve prioritization of recovery of degraded over misplaced objects (Sage Weil)
+* osd: locking, sharding, caching improvements in FileStore's FDCache (Somnath Roy, Greg Farnum)
+* osd: many important bug fixes (Samuel Just)
+* osd, mon: add rocksdb support (Xinxin Shu, Sage Weil)
+* osd, mon: distinguish between "misplaced" and "degraded" objects in cluster health and PG state reporting (Sage Weil)
+* osd: refactor some ErasureCode functionality into command parent class (Loic Dachary)
+* osd: set rollback_info_completed on create (#8625, Samuel Just)
+* rados: allow setxattr value to be read from stdin (Sage Weil)
+* rados: drop gratuitous \n from getxattr command (Sage Weil)
+* rgw: add --min-rewrite-stripe-size for object restriper (Yehuda Sadeh)
+* rgw: add powerdns hook for dynamic DNS for global clusters (Wido den Hollander)
+* rgw: copy object data is target bucket is in a different pool (#9039, Yehuda Sadeh)
+* rgw: do not try to authenticate CORS preflight requests (#8718, Robert Hubbard, Yehuda Sadeh)
+* rgw: fix civetweb URL decoding (#8621, Yehuda Sadeh)
+* rgw: fix removal of objects during object creation (Patrycja Szablowska, Yehuda Sadeh)
+* rgw: fix striping for copied objects (#9089, Yehuda Sadeh)
+* rgw: fix test for identify whether an object has a tail (#9226, Yehuda Sadeh)
+* rgw: fix when stripe size is not a multiple of chunk size (#8937, Yehuda Sadeh)
+* rgw: improve civetweb logging (Yehuda Sadeh)
+* rgw: misc civetweb frontend fixes (Yehuda Sadeh)
+* sysvinit: add support for non-default cluster names (Alfredo Deza)
+
+
+v0.84
+=====
+
+The next Ceph development release is here! This release contains
+several meaty items, including some MDS improvements for journaling,
+the ability to remove the CephFS file system (and name it), several
+mon cleanups with tiered pools, several OSD performance branches, a
+new "read forward" RADOS caching mode, a prototype Kinetic OSD
+backend, and various radosgw improvements (especially with the new
+standalone civetweb frontend). And there are a zillion OSD bug
+fixes. Things are looking pretty good for the Giant release that is
+coming up in the next month.
+
+Upgrading
+---------
+
+* The ``*_kb perf`` counters on the monitor have been removed. These are
+ replaced with a new set of ``*_bytes`` counters (e.g., ``cluster_osd_kb`` is
+ replaced by ``cluster_osd_bytes``).
+
+* The ``rd_kb`` and ``wr_kb`` fields in the JSON dumps for pool stats (accessed
+ via the ``ceph df detail -f json-pretty`` and related commands) have been
+ replaced with corresponding ``*_bytes`` fields. Similarly, the
+ ``total_space``, ``total_used``, and ``total_avail`` fields are replaced with
+ ``total_bytes``, ``total_used_bytes``, and ``total_avail_bytes`` fields.
+
+* The ``rados df --format=json`` output ``read_bytes`` and ``write_bytes``
+ fields were incorrectly reporting ops; this is now fixed.
+
+* The ``rados df --format=json`` output previously included ``read_kb`` and
+ ``write_kb`` fields; these have been removed. Please use ``read_bytes`` and
+ ``write_bytes`` instead (and divide by 1024 if appropriate).
+
+Notable Changes
+---------------
+
+* ceph-conf: flush log on exit (Sage Weil)
+* ceph-dencoder: refactor build a bit to limit dependencies (Sage Weil, Dan Mick)
+* ceph.spec: split out ceph-common package, other fixes (Sandon Van Ness)
+* ceph_test_librbd_fsx: fix RNG, make deterministic (Ilya Dryomov)
+* cephtool: refactor and improve CLI tests (Joao Eduardo Luis)
+* client: improved MDS session dumps (John Spray)
+* common: fix dup log messages (#9080, Sage Weil)
+* crush: include new tunables in dump (Sage Weil)
+* crush: only require rule features if the rule is used (#8963, Sage Weil)
+* crushtool: send output to stdout, not stderr (Wido den Hollander)
+* fix i386 builds (Sage Weil)
+* fix struct vs class inconsistencies (Thorsten Behrens)
+* hadoop: update hadoop tests for Hadoop 2.0 (Haumin Chen)
+* librbd, ceph-fuse: reduce cache flush overhead (Haomai Wang)
+* librbd: fix error path when opening image (#8912, Josh Durgin)
+* mds: add file system name, enabled flag (John Spray)
+* mds: boot refactor, cleanup (John Spray)
+* mds: fix journal conversion with standby-replay (John Spray)
+* mds: separate inode recovery queue (John Spray)
+* mds: session ls, evict commands (John Spray)
+* mds: submit log events in async thread (Yan, Zheng)
+* mds: use client-provided timestamp for user-visible file metadata (Yan, Zheng)
+* mds: validate journal header on load and save (John Spray)
+* misc build fixes for OS X (John Spray)
+* misc integer size cleanups (Kevin Cox)
+* mon: add get-quota commands (Joao Eduardo Luis)
+* mon: do not create file system by default (John Spray)
+* mon: fix 'ceph df' output for available space (Xiaoxi Chen)
+* mon: fix bug when no auth keys are present (#8851, Joao Eduardo Luis)
+* mon: fix compat version for MForward (Joao Eduardo Luis)
+* mon: restrict some pool properties to tiered pools (Joao Eduardo Luis)
+* msgr: misc locking fixes for fast dispatch (#8891, Sage Weil)
+* osd: add 'dump_reservations' admin socket command (Sage Weil)
+* osd: add READFORWARD caching mode (Luis Pabon)
+* osd: add header cache for KeyValueStore (Haomai Wang)
+* osd: add prototype KineticStore based on Seagate Kinetic (Josh Durgin)
+* osd: allow map cache size to be adjusted at runtime (Sage Weil)
+* osd: avoid refcounting overhead by passing a few things by ref (Somnath Roy)
+* osd: avoid sharing PG info that is not durable (Samuel Just)
+* osd: clear slow request latency info on osd up/down (Sage Weil)
+* osd: fix PG object listing/ordering bug (Guang Yang)
+* osd: fix PG stat errors with tiering (#9082, Sage Weil)
+* osd: fix bug with long object names and rename (#8701, Sage Weil)
+* osd: fix cache full -> not full requeueing (#8931, Sage Weil)
+* osd: fix gating of messages from old OSD instances (Greg Farnum)
+* osd: fix memstore bugs with collection_move_rename, lock ordering (Sage Weil)
+* osd: improve locking for KeyValueStore (Haomai Wang)
+* osd: make tiering behave if hit_sets aren't enabled (Sage Weil)
+* osd: mark pools with incomplete clones (Sage Weil)
+* osd: misc locking fixes for fast dispatch (Samuel Just, Ma Jianpeng)
+* osd: prevent old rados clients from using tiered pools (#8714, Sage Weil)
+* osd: reduce OpTracker overhead (Somnath Roy)
+* osd: set configurable hard limits on object and xattr names (Sage Weil, Haomai Wang)
+* osd: trim old EC objects quickly; verify on scrub (Samuel Just)
+* osd: work around GCC 4.8 bug in journal code (Matt Benjamin)
+* rados bench: fix arg order (Kevin Dalley)
+* rados: fix {read,write}_ops values for df output (Sage Weil)
+* rbd: add rbdmap pre- and post post- hooks, fix misc bugs (Dmitry Smirnov)
+* rbd: improve option default behavior (Josh Durgin)
+* rgw: automatically align writes to EC pool (#8442, Yehuda Sadeh)
+* rgw: fix crash on swift CORS preflight request (#8586, Yehuda Sadeh)
+* rgw: fix memory leaks (Andrey Kuznetsov)
+* rgw: fix multipart upload (#8846, Silvain Munaut, Yehuda Sadeh)
+* rgw: improve -h (Abhishek Lekshmanan)
+* rgw: improve delimited listing of bucket, misc fixes (Yehuda Sadeh)
+* rgw: misc civetweb fixes (Yehuda Sadeh)
+* rgw: powerdns backend for global namespaces (Wido den Hollander)
+* systemd: initial systemd config files (Federico Simoncelli)
+
+
+v0.83
+=====
+
+Another Ceph development release! This has been a longer cycle, so
+there has been quite a bit of bug fixing and stabilization in this
+round. There is also a bunch of packaging fixes for RPM distros
+(RHEL/CentOS, Fedora, and SUSE) and for systemd. We've also added a new
+librados-striper library from Sebastien Ponce that provides a generic
+striping API for applications to code to.
+
+Upgrading
+---------
+
+* The experimental keyvaluestore-dev OSD backend had an on-disk format
+ change that prevents existing OSD data from being upgraded. This
+ affects developers and testers only.
+
+* mon-specific and osd-specific leveldb options have been removed.
+ From this point onward users should use the `leveldb_*` generic
+ options and add the options in the appropriate sections of their
+ configuration files. Monitors will still maintain the following
+ monitor-specific defaults:
+
+ leveldb_write_buffer_size = 32*1024*1024 = 33554432 // 32MB
+ leveldb_cache_size = 512*1024*1204 = 536870912 // 512MB
+ leveldb_block_size = 64*1024 = 65536 // 64KB
+ leveldb_compression = false
+ leveldb_log = ""
+
+ OSDs will still maintain the following osd-specific defaults:
+
+ leveldb_log = ""
+
+Notable Changes
+---------------
+
+* ceph-disk: fix dmcrypt support (Stephen Taylor)
+* cephtool: fix help (Yilong Zhao)
+* cephtool: test cleanup (Joao Eduardo Luis)
+* doc: librados example fixes (Kevin Dalley)
+* doc: many doc updates (John Wilkins)
+* doc: update erasure docs (Loic Dachary, Venky Shankar)
+* filestore: disable use of XFS hint (buggy on old kernels) (Samuel Just)
+* filestore: fix xattr spillout (Greg Farnum, Haomai Wang)
+* keyvaluestore: header cache (Haomai Wang)
+* librados_striper: striping library for librados (Sebastien Ponce)
+* libs3: update to latest (Danny Al-Gaaf)
+* log: fix derr level (Joao Eduardo Luis)
+* logrotate: fix osd log rotation on ubuntu (Sage Weil)
+* mds: fix xattr bug triggered by ACLs (Yan, Zheng)
+* misc memory leaks, cleanups, fixes (Danny Al-Gaaf, Sahid Ferdjaoui)
+* misc suse fixes (Danny Al-Gaaf)
+* misc word size fixes (Kevin Cox)
+* mon: drop mon- and osd- specific leveldb options (Joao Eduardo Luis)
+* mon: ec pool profile fixes (Loic Dachary)
+* mon: fix health down messages (Sage Weil)
+* mon: fix quorum feature check (#8738, Greg Farnum)
+* mon: 'osd crush reweight-subtree ...' (Sage Weil)
+* mon, osd: relax client EC support requirements (Sage Weil)
+* mon: some instrumentation (Sage Weil)
+* objecter: flag operations that are redirected by caching (Sage Weil)
+* osd: clean up shard_id_t, shard_t (Loic Dachary)
+* osd: fix connection reconnect race (Greg Farnum)
+* osd: fix dumps (Joao Eduardo Luis)
+* osd: fix erasure-code lib initialization (Loic Dachary)
+* osd: fix extent normalization (Adam Crume)
+* osd: fix loopback msgr issue (Ma Jianpeng)
+* osd: fix LSB release parsing (Danny Al-Gaaf)
+* osd: improved backfill priorities (Sage Weil)
+* osd: many many core fixes (Samuel Just)
+* osd, mon: config sanity checks on start (Sage Weil, Joao Eduardo Luis)
+* osd: sharded threadpool to improve parallelism (Somnath Roy)
+* osd: simple io prioritization for scrub (Sage Weil)
+* osd: simple scrub throttling (Sage Weil)
+* osd: tests for bench command (Loic Dachary)
+* osd: use xfs hint less frequently (Ilya Dryomov)
+* pybind/rados: fix small timeouts (John Spray)
+* qa: xfstests updates (Ilya Dryomov)
+* rgw: cache bucket info (Yehuda Sadeh)
+* rgw: cache decoded user info (Yehuda Sadeh)
+* rgw: fix multipart object attr regression (#8452, Yehuda Sadeh)
+* rgw: fix radosgw-admin 'show log' command (#8553, Yehuda Sadeh)
+* rgw: fix URL decoding (#8702, Brian Rak)
+* rgw: handle empty extra pool name (Yehuda Sadeh)
+* rpm: do not restart daemons on upgrade (Alfredo Deza)
+* rpm: misc packaging fixes for rhel7 (Sandon Van Ness)
+* rpm: split ceph-common from ceph (Sandon Van Ness)
+* systemd: wrap started daemons in new systemd environment (Sage Weil, Dan Mick)
+* sysvinit: less sensitive to failures (Sage Weil)
+* upstart: increase max open files limit (Sage Weil)
+
+v0.82
+=====
+
+This is the second post-firefly development release. It includes a range
+of bug fixes and some usability improvements. There are some MDS debugging
+and diagnostic tools, an improved 'ceph df', and some OSD backend refactoring
+and cleanup.
+
+Notable Changes
+---------------
+
+* ceph-brag: add tox tests (Alfredo Deza)
+* common: perfcounters now use atomics and go faster (Sage Weil)
+* doc: CRUSH updates (John Wilkins)
+* doc: osd primary affinity (John Wilkins)
+* doc: pool quotas (John Wilkins)
+* doc: pre-flight doc improvements (Kevin Dalley)
+* doc: switch to an unencumbered font (Ross Turk)
+* doc: update openstack docs (Josh Durgin)
+* fix hppa arch build (Dmitry Smirnov)
+* init-ceph: continue starting other daemons on crush or mount failure (#8343, Sage Weil)
+* keyvaluestore: fix hint crash (#8381, Haomai Wang)
+* libcephfs-java: build against older JNI headers (Greg Farnum)
+* librados: fix rados_pool_list bounds checks (Sage Weil)
+* mds: cephfs-journal-tool (John Spray)
+* mds: improve Journaler on-disk format (John Spray)
+* mds, libcephfs: use client timestamp for mtime/ctime (Sage Weil)
+* mds: misc encoding improvements (John Spray)
+* mds: misc fixes for multi-mds (Yan, Zheng)
+* mds: OPTracker integration, dump_ops_in_flight (Greg Farnum)
+* misc cleanup (Christophe Courtaut)
+* mon: fix default replication pool ruleset choice (#8373, John Spray)
+* mon: fix set cache_target_full_ratio (#8440, Geoffrey Hartz)
+* mon: include per-pool 'max avail' in df output (Sage Weil)
+* mon: prevent EC pools from being used with cephfs (Joao Eduardo Luis)
+* mon: restore original weight when auto-marked out OSDs restart (Sage Weil)
+* mon: use msg header tid for MMonGetVersionReply (Ilya Dryomov)
+* osd: fix bogus assert during OSD shutdown (Sage Weil)
+* osd: fix clone deletion case (#8334, Sam Just)
+* osd: fix filestore removal corner case (#8332, Sam Just)
+* osd: fix hang waiting for osdmap (#8338, Greg Farnum)
+* osd: fix interval check corner case during peering (#8104, Sam Just)
+* osd: fix journal-less operation (Sage Weil)
+* osd: include backend information in metadata reported to mon (Sage Weil)
+* rest-api: fix help (Ailing Zhang)
+* rgw: check entity permission for put_metadata (#8428, Yehuda Sadeh)
+
+
+v0.81
+=====
+
+This is the first development release since Firefly. It includes a
+lot of work that we delayed merging while stabilizing things. Lots of
+new functionality, as well as several fixes that are baking a bit before
+getting backported.
+
+Upgrading
+---------
+
+* CephFS support for the legacy anchor table has finally been removed.
+ Users with file systems created before firefly should ensure that inodes
+ with multiple hard links are modified *prior* to the upgrade to ensure that
+ the backtraces are written properly. For example::
+
+ sudo find /mnt/cephfs -type f -links +1 -exec touch \{\} \;
+
+* Disallow nonsensical 'tier cache-mode' transitions. From this point
+ onward, 'writeback' can only transition to 'forward' and 'forward'
+ can transition to 1) 'writeback' if there are dirty objects, or 2) any if
+ there are no dirty objects.
+
+Notable Changes
+---------------
+
+* bash completion improvements (Wido den Hollander)
+* brag: fixes, improvements (Loic Dachary)
+* ceph-disk: handle corrupt volumes (Stuart Longlang)
+* ceph-disk: partprobe as needed (Eric Eastman)
+* ceph-fuse, libcephfs: asok hooks for handling session resets, timeouts (Yan, Zheng)
+* ceph-fuse, libcephfs: improve traceless reply handling (Sage Weil)
+* clang build fixes (John Spray, Danny Al-Gaaf)
+* config: support G, M, K, etc. suffixes (Joao Eduardo Luis)
+* coverity cleanups (Danny Al-Gaaf)
+* doc: cache tiering (John Wilkins)
+* doc: keystone integration docs (John Wilkins)
+* doc: updated simple configuration guides (John Wilkins)
+* libcephfs-java: fix gcj-jdk build (Dmitry Smirnov)
+* librbd: check error code on cache invalidate (Josh Durgin)
+* librbd: new libkrbd library for kernel map/unmap/showmapped (Ilya Dryomov)
+* Makefile: fix out of source builds (Stefan Eilemann)
+* mds: multi-mds fixes (Yan, Zheng)
+* mds: remove legacy anchor table (Yan, Zheng)
+* mds: remove legacy discover ino (Yan, Zheng)
+* monclient: fix hang (Sage Weil)
+* mon: prevent nonsensical cache-mode transitions (Joao Eduardo Luis)
+* msgr: avoid big lock when sending (most) messages (Greg Farnum)
+* osd: bound osdmap epoch skew between PGs (Sage Weil)
+* osd: cache tier flushing fixes for snapped objects (Samuel Just)
+* osd: fix agent early finish looping (David Zafman)
+* osd: fix flush vs OpContext (Samuel Just)
+* osd: fix MarkMeDown and other shutdown races (Sage Weil)
+* osd: fix scrub vs cache bugs (Samuel Just)
+* osd: fix trim of hitsets (Sage Weil)
+* osd, msgr: fast-dispatch of OSD ops (Greg Farnum, Samuel Just)
+* osd, objecter: resend ops on last_force_op_resend barrier; fix cache overlay op ordering (Sage Weil)
+* osd: remove obsolete classic scrub code (David Zafman)
+* osd: scrub PGs with invalid stats (Sage Weil)
+* osd: simple snap trimmer throttle (Sage Weil)
+* osd: use FIEMAP to inform copy_range (Haomai Wang)
+* rbd-fuse: allow exposing single image (Stephen Taylor)
+* rbd-fuse: fix unlink (Josh Durgin)
+* removed mkcephfs (deprecated since dumpling)
+* rgw: bucket link uses instance id (Yehuda Sadeh)
+* rgw: fix memory leak following chunk read error (Yehuda Sadeh)
+* rgw: fix URL escaping (Yehuda Sadeh)
+* rgw: fix user manifest (Yehuda Sadeh)
+* rgw: object and bucket rewrite functions to allow restriping old objects (Yehuda Sadeh)
+* rgw: prevent multiobject PUT race (Yehuda Sadeh)
+* rgw: send user manifest header (Yehuda Sadeh)
+* test_librbd_fsx: test krbd as well as librbd (Ilya Dryomov)
projects / ceph.git / blobdiff