From: Sage Weil Date: Wed, 14 Jan 2015 23:11:07 +0000 (-0800) Subject: doc/release-notes: v0.91 X-Git-Tag: v0.93~287 X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=3f03a7b2ee9b9f0b3192d72af74631d37f1369db;p=ceph.git doc/release-notes: v0.91 Signed-off-by: Sage Weil --- diff --git a/PendingReleaseNotes b/PendingReleaseNotes index 982412dae99b..b45fe3a8ebe0 100644 --- a/PendingReleaseNotes +++ b/PendingReleaseNotes @@ -1,40 +1,3 @@ -v0.91 ------ - -* The 'category' field for objects has been removed. This was originally added - to track PG stat summations over different categories of objects for use by - radosgw. It is no longer has any known users and is prone to abuse because it - can lead to a pg_stat_t structure that is unbounded. The librados API calls - that accept this field now ignore it, and the OSD no longers tracks the - per-category summations. - -* The output for 'rados df' has changed. The 'category' level has been - eliminated, so there is now a single stat object per pool. The structure of - the JSON output is different, and the plaintext output has one less column. - -* The 'rados create [category]' optional category argument is no - longer supported or recognized. - -* rados.py's Rados class no longer has a __del__ method; it was causing - problems on interpreter shutdown and use of threads. If your code has - Rados objects with limited lifetimes and you're concerned about locked - resources, call Rados.shutdown() explicitly. - -* There is a new version of the librados watch/notify API with vastly - improved semantics. Any applications using this interface are - encouraged to migrate to the new API. The old API calls are marked - as deprecated and will eventually be removed. - -* The librados rados_unwatch() call used to be safe to call on an - invalid handle. The new version has undefined behavior when passed - a bogus value (for example, when rados_watch() returns an error and - handle is not defined). - -* The structure of the formatted 'pg stat' command is changed for the - portion that counts states by name to avoid using the '+' character - (which appears in state names) as part of the XML token (it is not - legal). - v0.92 ----- @@ -58,3 +21,6 @@ v0.92 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. + +v0.93 +----- diff --git a/doc/release-notes.rst b/doc/release-notes.rst index ddc5fa398bff..9578c9640e4e 100644 --- a/doc/release-notes.rst +++ b/doc/release-notes.rst @@ -2,6 +2,128 @@ Release Notes =============== +v0.91 +===== + +We are quickly approaching the Hammer feature freeze but have a few +more dev releases to go before we get there. The headline items are +subtree-based quota support in CephFS (ceph-fuse/libcephfs client +support only for now), a rewrite of the watch/notify librados API used +by RBD and RGW, OSDMap checksums to ensure that maps are always +consistent inside the cluster, new API calls in librados and librbd +for IO hinting modeled after posix_fadvise, and improved storage of +per-PG state. + +We expect two more releases before the Hammer feature freeze (v0.93). + +Upgrading +--------- + +* The 'category' field for objects has been removed. This was originally added + to track PG stat summations over different categories of objects for use by + radosgw. It is no longer has any known users and is prone to abuse because it + can lead to a pg_stat_t structure that is unbounded. The librados API calls + that accept this field now ignore it, and the OSD no longers tracks the + per-category summations. + +* The output for 'rados df' has changed. The 'category' level has been + eliminated, so there is now a single stat object per pool. The structure of + the JSON output is different, and the plaintext output has one less column. + +* The 'rados create [category]' optional category argument is no + longer supported or recognized. + +* rados.py's Rados class no longer has a __del__ method; it was causing + problems on interpreter shutdown and use of threads. If your code has + Rados objects with limited lifetimes and you're concerned about locked + resources, call Rados.shutdown() explicitly. + +* There is a new version of the librados watch/notify API with vastly + improved semantics. Any applications using this interface are + encouraged to migrate to the new API. The old API calls are marked + as deprecated and will eventually be removed. + +* The librados rados_unwatch() call used to be safe to call on an + invalid handle. The new version has undefined behavior when passed + a bogus value (for example, when rados_watch() returns an error and + handle is not defined). + +* The structure of the formatted 'pg stat' command is changed for the + portion that counts states by name to avoid using the '+' character + (which appears in state names) as part of the XML token (it is not + legal). + +Notable Changes +--------------- + +* asyncmsgr: misc fixes (Haomai Wang) +* buffer: add 'shareable' construct (Matt Benjamin) +* build: aarch64 build fixes (Noah Watkins, Haomai Wang) +* build: support for jemalloc (Shishir Gowda) +* ceph-disk: allow journal partition re-use (#10146 Loic Dachary, Dav van der Ster) +* ceph-disk: misc fixes (Christos Stavrakakis) +* ceph-fuse: fix kernel cache trimming (#10277 Yan, Zheng) +* ceph-objectstore-tool: many many improvements (David Zafman) +* common: support new gperftools header locations (Key Dreyer) +* crush: straw bucket weight calculation fixes (#9998 Sage Weil) +* doc: misc improvements (Nilamdyuti Goswami, John Wilkins, Chris Holcombe) +* libcephfs,ceph-fuse: add 'status' asok (John Spray) +* librados, osd: new watch/notify implementation (Sage Weil) +* librados: drop 'category' feature (Sage Weil) +* librados: fix pool deletion handling (#10372 Sage Weil) +* librados: new fadvise API (Ma Jianpeng) +* libradosstriper: fix remove() (Dongmao Zhang) +* librbd: complete pending ops before closing image (#10299 Josh Durgin) +* librbd: fadvise API (Ma Jianpeng) +* mds: ENOSPC and OSDMap epoch barriers (#7317 John Spray) +* mds: dirfrag buf fix (Yan, Zheng) +* mds: disallow most commands on inactive MDS's (Greg Farnum) +* mds: drop dentries, leases on deleted directories (#10164 Yan, Zheng) +* mds: handle zero-size xattr (#10335 Yan, Zheng) +* mds: subtree quota support (Yunchuan Wen) +* memstore: free space tracking (John Spray) +* misc cleanup (Danny Al-Gaaf, David Anderson) +* mon: 'osd crush reweight-all' command (Sage Weil) +* mon: allow full flag to be manually cleared (#9323 Sage Weil) +* mon: delay failure injection (Joao Eduardo Luis) +* mon: fix paxos timeouts (#10220 Joao Eduardo Luis) +* mon: get canonical OSDMap from leader (#10422 Sage Weil) +* msgr: fix RESETSESSION bug (#10080 Greg Farnum) +* objectstore: deprecate collection attrs (Sage Weil) +* osd, mon: add checksums to all OSDMaps (Sage Weil) +* osd: allow deletion of objects with watcher (#2339 Sage Weil) +* osd: allow sparse read for Push/Pull (Haomai Wang) +* osd: cache reverse_nibbles hash value (Dong Yuan) +* osd: drop upgrade support for pre-dumpling (Sage Weil) +* osd: enable and use posix_fadvise (Sage Weil) +* osd: erasure-code: enforce chunk size alignment (#10211 Loic Dachary) +* osd: erasure-code: jerasure support for NEON (Loic Dachary) +* osd: erasure-code: relax cauchy w restrictions (#10325 David Zhang, Loic Dachary) +* osd: erasure-code: update gf-complete to latest upstream (Loic Dachary) +* osd: fix WBTHrottle perf counters (Haomai Wang) +* osd: fix backfill bug (#10150 Samuel Just) +* osd: fix occasional peering stalls (#10431 Sage Weil) +* osd: fix scrub vs try-flush bug (#8011 Samuel Just) +* osd: fix stderr with -f or -d (Dan Mick) +* osd: misc FIEMAP fixes (Ma Jianpeng) +* osd: optimize Finisher (Xinze Chi) +* osd: store PG metadata in per-collection objects for better concurrency (Sage Weil) +* pyrados: add object lock support (#6114 Mehdi Abaakouk) +* pyrados: fix misnamed wait_* routings (#10104 Dan Mick) +* pyrados: misc cleanups (Kefu Chai) +* qa: add large auth ticket tests (Ilya Dryomov) +* qa: many 'make check' improvements (Loic Dachary) +* qa: misc tests (Loic Dachary, Yan, Zheng) +* rgw: conditional PUT on ETag (#8562 Ray Lv) +* rgw: fix error codes (#10334 #10329 Yehuda Sadeh) +* rgw: index swift keys appropriately (#10471 Yehuda Sadeh) +* rgw: prevent illegal bucket policy that doesn't match placement rule (Yehuda Sadeh) +* rgw: run radosgw as apache with systemd (#10125 Loic Dachary) +* rgw: support X-Storage-Policy header for Swift storage policy compat (Yehuda Sadeh) +* rgw: use \r\n for http headers (#9254 Yehuda Sadeh) +* rpm: misc fixes (Key Dreyer) + + v0.90 =====