Release Notes
===============
+v0.92
+=====
+
+This is the second-to-last chunk of new stuff before Hammer. Big items
+include additional checksums on OSD objects, proxied reads in the
+cache tier, image locking in RBD, optimized OSD Transaction and
+replication messages, and a big pile of RGW and MDS bug fixes.
+
+Upgrading
+---------
+
+* The experimental 'keyvaluestore-dev' OSD backend has been renamed
+ 'keyvaluestore' (for simplicity) and marked as experimental. To
+ enable this untested feature and acknowledge that you understand
+ that it is untested and may destroy data, you need to add the
+ following to your ceph.conf::
+
+ enable experimental unrecoverable data corrupting featuers = keyvaluestore
+
+* The following librados C API function calls take a 'flags' argument whose value
+ is now correctly interpreted:
+
+ rados_write_op_operate()
+ rados_aio_write_op_operate()
+ rados_read_op_operate()
+ rados_aio_read_op_operate()
+
+ The flags were not correctly being translated from the librados constants to the
+ internal values. Now they are. Any code that is passing flags to these methods
+ should be audited to ensure that they are using the correct LIBRADOS_OP_FLAG_*
+ constants.
+
+* The 'rados' CLI 'copy' and 'cppool' commands now use the copy-from operation,
+ which means the latest CLI cannot run these commands against pre-firefly OSDs.
+
+* The librados watch/notify API now includes a watch_flush() operation to flush
+ the async queue of notify operations. This should be called by any watch/notify
+ user prior to rados_shutdown().
+
+Notable Changes
+---------------
+
+* add experimental features option (Sage Weil)
+* build: fix 'make check' races (#10384 Loic Dachary)
+* build: fix pkg names when libkeyutils is missing (Pankag Garg, Ken Dreyer)
+* ceph: make 'ceph -s' show PG state counts in sorted order (Sage Weil)
+* ceph: make 'ceph tell mon.* version' work (Mykola Golub)
+* ceph-monstore-tool: fix/improve CLI (Joao Eduardo Luis)
+* ceph: show primary-affinity in 'ceph osd tree' (Mykola Golub)
+* common: add TableFormatter (Andreas Peters)
+* common: check syncfs() return code (Jianpeng Ma)
+* doc: do not suggest dangerous XFS nobarrier option (Dan van der Ster)
+* doc: misc updates (Nilamdyuti Goswami, John Wilkins)
+* install-deps.sh: do not require sudo when root (Loic Dachary)
+* libcephfs: fix dirfrag trimming (#10387 Yan, Zheng)
+* libcephfs: fix mount timeout (#10041 Yan, Zheng)
+* libcephfs: fix test (#10415 Yan, Zheng)
+* libcephfs: fix use-afer-free on umount (#10412 Yan, Zheng)
+* libcephfs: include ceph and git version in client metadata (Sage Weil)
+* librados: add watch_flush() operation (Sage Weil, Haomai Wang)
+* librados: avoid memcpy on getxattr, read (Jianpeng Ma)
+* librados: create ioctx by pool id (Jason Dillaman)
+* librados: do notify completion in fast-dispatch (Sage Weil)
+* librados: remove shadowed variable (Kefu Chain)
+* librados: translate op flags from C APIs (Matthew Richards)
+* librbd: differentiate between R/O vs R/W features (Jason Dillaman)
+* librbd: exclusive image locking (Jason Dillaman)
+* librbd: fix write vs import race (#10590 Jason Dillaman)
+* librbd: gracefully handle deleted/renamed pools (#10270 Jason Dillaman)
+* mds: asok command for fetching subtree map (John Spray)
+* mds: constify MDSCacheObjects (John Spray)
+* misc: various valgrind fixes and cleanups (Danny Al-Gaaf)
+* mon: fix 'mds fail' for standby MDSs (John Spray)
+* mon: fix stashed monmap encoding (#5203 Xie Rui)
+* mon: implement 'fs reset' command (John Spray)
+* mon: respect down flag when promoting standbys (John Spray)
+* mount.ceph: fix suprious error message (#10351 Yan, Zheng)
+* msgr: async: many fixes, unit tests (Haomai Wang)
+* msgr: simple: retry binding to port on failure (#10029 Wido den Hollander)
+* osd: add fadvise flags to ObjectStore API (Jianpeng Ma)
+* osd: add get_latest_osdmap asok command (#9483 #9484 Mykola Golub)
+* osd: EIO on whole-object reads when checksum is wrong (Sage Weil)
+* osd: filejournal: don't cache journal when not using direct IO (Jianpeng Ma)
+* osd: fix ioprio option (Mykola Golub)
+* osd: fix scrub delay bug (#10693 Samuel Just)
+* osd: fix watch reconnect race (#10441 Sage Weil)
+* osd: handle no-op write with snapshot (#10262 Sage Weil)
+* osd: journal: fix journal zeroing when direct IO is enabled (Xie Rui)
+* osd: keyvaluestore: cleanup dead code (Ning Yao)
+* osd, mds: 'ops' as shorthand for 'dump_ops_in_flight' on asok (Sage Weil)
+* osd: memstore: fix size limit (Xiaoxi Chen)
+* osd: misc scrub fixes (#10017 Loic Dachary)
+* osd: new optimized encoding for ObjectStore::Transaction (Dong Yuan)
+* osd: optimize filter_snapc (Ning Yao)
+* osd: optimize WBThrottle map with unordered_map (Ning Yao)
+* osd: proxy reads during cache promote (Zhiqiang Wang)
+* osd: proxy read support (Zhiqiang Wang)
+* osd: remove legacy classic scrub code (Sage Weil)
+* osd: remove unused fields in MOSDSubOp (Xiaoxi Chen)
+* osd: replace MOSDSubOp messages with simpler, optimized MOSDRepOp (Xiaoxi Chen)
+* osd: store whole-object checksums on scrub, write_full (Sage Weil)
+* osd: verify kernel is new enough before using XFS extsize ioctl, enable by default (#9956 Sage Weil)
+* rados: use copy-from operation for copy, cppool (Sage Weil)
+* rgw: change multipart upload id magic (#10271 Yehuda Sadeh)
+* rgw: decode http query params correction (#10271 Yehuda Sadeh)
+* rgw: fix content length check (#10701 Axel Dunkel, Yehuda Sadeh)
+* rgw: fix partial GET in swift (#10553 Yehuda Sadeh)
+* rgw: fix shutdown (#10472 Yehuda Sadeh)
+* rgw: include XML ns on get ACL request (#10106 Yehuda Sadeh)
+* rgw: misc fixes (#10307 Yehuda Sadeh)
+* rgw: only track cleanup for objects we write (#10311 Yehuda Sadeh)
+* rgw: tweak error codes (#10329 #10334 Yehuda Sadeh)
+* rgw: use gc for multipart abort (#10445 Aaron Bassett, Yehuda Sadeh)
+* sysvinit: fix race in 'stop' (#10389 Loic Dachary)
+* test: fix bufferlist tests (Jianpeng Ma)
+* tests: improve docker-based tests (Loic Dachary)
+
+
v0.91
=====
projects / ceph.git / commitdiff