diff options
Diffstat (limited to 'doc/releases/emperor.rst')
| -rw-r--r-- | doc/releases/emperor.rst | 654 |
1 files changed, 0 insertions, 654 deletions
diff --git a/doc/releases/emperor.rst b/doc/releases/emperor.rst deleted file mode 100644 index 3c0bcb782..000000000 --- a/doc/releases/emperor.rst +++ /dev/null @@ -1,654 +0,0 @@ -======= -Emperor -======= - -Emperor is the 5th stable release of Ceph. It is named after the emperor squid. - - -v0.72.3 Emperor (pending release) -================================= - -Upgrading ---------- - -* Monitor 'auth' read-only commands now expect the user to have 'rx' caps. - This is the same behavior that was present in dumpling, but in emperor - and more recent development releases the 'r' cap was sufficient. Note that - this backported security fix will break mon keys that are using the following - commands but do not have the 'x' bit in the mon capability:: - - ceph auth export - ceph auth get - ceph auth get-key - ceph auth print-key - ceph auth list - - -v0.72.2 Emperor -=============== - -This is the second bugfix release for the v0.72.x Emperor series. We -have fixed a hang in radosgw, and fixed (again) a problem with monitor -CLI compatibility with mixed version monitors. (In the future this -will no longer be a problem.) - -Upgrading ---------- - -* The JSON schema for the 'osd pool set ...' command changed slightly. Please - avoid issuing this particular command via the CLI while there is a mix of - v0.72.1 and v0.72.2 monitor daemons running. - -* As part of fix for #6796, 'ceph osd pool set <pool> <var> <arg>' now - receives <arg> as an integer instead of a string. This affects how - 'hashpspool' flag is set/unset: instead of 'true' or 'false', it now - must be '0' or '1'. - - -Changes -------- - -* mon: 'osd pool set ...' syntax change -* osd: added test for missing on-disk HEAD object -* osd: fix osd bench block size argument -* rgw: fix hang on large object GET -* rgw: fix rare use-after-free -* rgw: various DR bug fixes -* rgw: do not return error on empty owner when setting ACL -* sysvinit, upstart: prevent starting daemons using both init systems - -For more detailed information, see :download:`the complete changelog <../changelog/v0.72.2.txt>`. - -v0.72.1 Emperor -=============== - -Important Note --------------- - -When you are upgrading from Dumpling to Emperor, do not run any of the -"ceph osd pool set" commands while your monitors are running separate versions. -Doing so could result in inadvertently changing cluster configuration settings -that exhaust compute resources in your OSDs. - -Changes -------- - -* osd: fix upgrade bug #6761 -* ceph_filestore_tool: introduced tool to repair errors caused by #6761 - -This release addresses issue #6761. Upgrading to Emperor can cause -reads to begin returning ENFILE (too many open files). v0.72.1 fixes -that upgrade issue and adds a tool ceph_filestore_tool to repair osd -stores affected by this bug. - -To repair a cluster affected by this bug: - -#. Upgrade all osd machines to v0.72.1 -#. Install the ceph-test package on each osd machine to get ceph_filestore_tool -#. Stop all osd processes -#. To see all lost objects, run the following on each osd with the osd stopped and - the osd data directory mounted:: - - ceph_filestore_tool --list-lost-objects=true --filestore-path=<path-to-osd-filestore> --journal-path=<path-to-osd-journal> - -#. To fix all lost objects, run the following on each osd with the - osd stopped and the osd data directory mounted:: - - ceph_filestore_tool --fix-lost-objects=true --list-lost-objects=true --filestore-path=<path-to-osd-filestore> --journal-path=<path-to-osd-journal> - -#. Once lost objects have been repaired on each osd, you can restart - the cluster. - -Note, the ceph_filestore_tool performs a scan of all objects on the -osd and may take some time. - - -v0.72 Emperor -============= - -This is the fifth major release of Ceph, the fourth since adopting a -3-month development cycle. This release brings several new features, -including multi-datacenter replication for the radosgw, improved -usability, and lands a lot of incremental performance and internal -refactoring work to support upcoming features in Firefly. - -Important Note --------------- - -When you are upgrading from Dumpling to Emperor, do not run any of the -"ceph osd pool set" commands while your monitors are running separate versions. -Doing so could result in inadvertently changing cluster configuration settings -that exhaust compute resources in your OSDs. - -Highlights ----------- - -* common: improved crc32c performance -* librados: new example client and class code -* mds: many bug fixes and stability improvements -* mon: health warnings when pool pg_num values are not reasonable -* mon: per-pool performance stats -* osd, librados: new object copy primitives -* osd: improved interaction with backend file system to reduce latency -* osd: much internal refactoring to support ongoing erasure coding and tiering support -* rgw: bucket quotas -* rgw: improved CORS support -* rgw: performance improvements -* rgw: validate S3 tokens against Keystone - -Coincident with core Ceph, the Emperor release also brings: - -* radosgw-agent: support for multi-datacenter replication for disaster recovery -* tgt: improved support for iSCSI via upstream tgt - -Packages for both are available on ceph.com. - -Upgrade sequencing ------------------- - -There are no specific upgrade restrictions on the order or sequence of -upgrading from 0.67.x Dumpling. However, you cannot run any of the -"ceph osd pool set" commands while your monitors are running separate versions. -Doing so could result in inadvertently changing cluster configuration settings -and exhausting compute resources in your OSDs. - -It is also possible to do a rolling upgrade from 0.61.x Cuttlefish, -but there are ordering restrictions. (This is the same set of -restrictions for Cuttlefish to Dumpling.) - -#. Upgrade ceph-common on all nodes that will use the command line 'ceph' utility. -#. Upgrade all monitors (upgrade ceph package, restart ceph-mon - daemons). This can happen one daemon or host at a time. Note that - because cuttlefish and dumpling monitors can't talk to each other, - all monitors should be upgraded in relatively short succession to - minimize the risk that an a untimely failure will reduce - availability. -#. Upgrade all osds (upgrade ceph package, restart ceph-osd daemons). - This can happen one daemon or host at a time. -#. Upgrade radosgw (upgrade radosgw package, restart radosgw daemons). - - -Upgrading from v0.71 --------------------- - -* ceph-fuse and radosgw now use the same default values for the admin - socket and log file paths that the other daemons (ceph-osd, - ceph-mon, etc.) do. If you run these daemons as non-root, you may - need to adjust your ceph.conf to disable these options or to adjust - the permissions on /var/run/ceph and /var/log/ceph. - -Upgrading from v0.67 Dumpling ------------------------------ - -* ceph-fuse and radosgw now use the same default values for the admin - socket and log file paths that the other daemons (ceph-osd, - ceph-mon, etc.) do. If you run these daemons as non-root, you may - need to adjust your ceph.conf to disable these options or to adjust - the permissions on /var/run/ceph and /var/log/ceph. - -* The MDS now disallows snapshots by default as they are not - considered stable. The command 'ceph mds set allow_snaps' will - enable them. - -* For clusters that were created before v0.44 (pre-argonaut, Spring - 2012) and store radosgw data, the auto-upgrade from TMAP to OMAP - objects has been disabled. Before upgrading, make sure that any - buckets created on pre-argonaut releases have been modified (e.g., - by PUTing and then DELETEing an object from each bucket). Any - cluster created with argonaut (v0.48) or a later release or not - using radosgw never relied on the automatic conversion and is not - affected by this change. - -* Any direct users of the 'tmap' portion of the librados API should be - aware that the automatic tmap -> omap conversion functionality has - been removed. - -* Most output that used K or KB (e.g., for kilobyte) now uses a - lower-case k to match the official SI convention. Any scripts that - parse output and check for an upper-case K will need to be modified. - -* librados::Rados::pool_create_async() and librados::Rados::pool_delete_async() - don't drop a reference to the completion object on error, caller needs to take - care of that. This has never really worked correctly and we were leaking an - object - -* 'ceph osd crush set <id> <weight> <loc..>' no longer adds the osd to the - specified location, as that's a job for 'ceph osd crush add'. It will - however continue to work just the same as long as the osd already exists - in the crush map. - -* The OSD now enforces that class write methods cannot both mutate an - object and return data. The rbd.assign_bid method, the lone - offender, has been removed. This breaks compatibility with - pre-bobtail librbd clients by preventing them from creating new - images. - -* librados now returns on commit instead of ack for synchronous calls. - This is a bit safer in the case where both OSDs and the client crash, and - is probably how it should have been acting from the beginning. Users are - unlikely to notice but it could result in lower performance in some - circumstances. Those who care should switch to using the async interfaces, - which let you specify safety semantics precisely. - -* The C++ librados AioComplete::get_version() method was incorrectly - returning an int (usually 32-bits). To avoid breaking library - compatibility, a get_version64() method is added that returns the - full-width value. The old method is deprecated and will be removed - in a future release. Users of the C++ librados API that make use of - the get_version() method should modify their code to avoid getting a - value that is truncated from 64 to to 32 bits. - - -Notable Changes since v0.71 ---------------------------- - -* build: fix [/usr]/sbin locations (Alan Somers) -* ceph-fuse, radosgw: enable admin socket and logging by default -* ceph: make -h behave when monitors are down -* common: cache crc32c values where possible -* common: fix looping on BSD (Alan Somers) -* librados, mon: ability to query/ping out-of-quorum monitor status (Joao Luis) -* librbd python bindings: fix parent image name limit (Josh Durgin) -* mds: avoid leaking objects when deleting truncated files (Yan, Zheng) -* mds: fix F_GETLK (Yan, Zheng) -* mds: fix many bugs with stray (unlinked) inodes (Yan, Zheng) -* mds: fix many directory fragmentation bugs (Yan, Zheng) -* mon: allow (un)setting HASHPSPOOL flag on existing pools (Joao Luis) -* mon: make 'osd pool rename' idempotent (Joao Luis) -* osd: COPY_GET on-wire encoding improvements (Greg Farnum) -* osd: bloom_filter encodability, fixes, cleanups (Loic Dachary, Sage Weil) -* osd: fix handling of racing read vs write (Samuel Just) -* osd: reduce blocking on backing fs (Samuel Just) -* radosgw-agent: multi-region replication/DR -* rgw: fix/improve swift COPY support (Yehuda Sadeh) -* rgw: misc fixes to support DR (Josh Durgin, Yehuda Sadeh) -* rgw: per-bucket quota (Yehuda Sadeh) -* rpm: fix junit dependencies (Alan Grosskurth) - -Notable Changes since v0.67 Dumpling ------------------------------------- - -* build cleanly under clang (Christophe Courtaut) -* build: Makefile refactor (Roald J. van Loon) -* build: fix [/usr]/sbin locations (Alan Somers) -* ceph-disk: fix journal preallocation -* ceph-fuse, radosgw: enable admin socket and logging by default -* ceph-fuse: fix problem with readahead vs truncate race (Yan, Zheng) -* ceph-fuse: trim deleted inodes from cache (Yan, Zheng) -* ceph-fuse: use newer fuse api (Jianpeng Ma) -* ceph-kvstore-tool: new tool for working with leveldb (copy, crc) (Joao Luis) -* ceph-post-file: new command to easily share logs or other files with ceph devs -* ceph: improve parsing of CEPH_ARGS (Benoit Knecht) -* ceph: make -h behave when monitors are down -* ceph: parse CEPH_ARGS env variable -* common: bloom_filter improvements, cleanups -* common: cache crc32c values where possible -* common: correct SI is kB not KB (Dan Mick) -* common: fix looping on BSD (Alan Somers) -* common: migrate SharedPtrRegistry to use boost::shared_ptr<> (Loic Dachary) -* common: misc portability fixes (Noah Watkins) -* crc32c: fix optimized crc32c code (it now detects arch support properly) -* crc32c: improved intel-optimized crc32c support (~8x faster on my laptop!) -* crush: fix name caching -* doc: erasure coding design notes (Loic Dachary) -* hadoop: removed old version of shim to avoid confusing users (Noah Watkins) -* librados, mon: ability to query/ping out-of-quorum monitor status (Joao Luis) -* librados: fix async aio completion wakeup -* librados: fix installed header #includes (Dan Mick) -* librados: get_version64() method for C++ API -* librados: hello_world example (Greg Farnum) -* librados: sync calls now return on commit (instead of ack) (Greg Farnum) -* librbd python bindings: fix parent image name limit (Josh Durgin) -* librbd, ceph-fuse: avoid some sources of ceph-fuse, rbd cache stalls -* mds: avoid leaking objects when deleting truncated files (Yan, Zheng) -* mds: fix F_GETLK (Yan, Zheng) -* mds: fix LOOKUPSNAP bug -* mds: fix heap profiler commands (Joao Luis) -* mds: fix locking deadlock (David Disseldorp) -* mds: fix many bugs with stray (unlinked) inodes (Yan, Zheng) -* mds: fix many directory fragmentation bugs (Yan, Zheng) -* mds: fix mds rejoin with legacy parent backpointer xattrs (Alexandre Oliva) -* mds: fix rare restart/failure race during fs creation -* mds: fix standby-replay when we fall behind (Yan, Zheng) -* mds: fix stray directory purging (Yan, Zheng) -* mds: notify clients about deleted files (so they can release from their cache) (Yan, Zheng) -* mds: several bug fixes with clustered mds (Yan, Zheng) -* mon, osd: improve osdmap trimming logic (Samuel Just) -* mon, osd: initial CLI for configuring tiering -* mon: a few 'ceph mon add' races fixed (command is now idempotent) (Joao Luis) -* mon: allow (un)setting HASHPSPOOL flag on existing pools (Joao Luis) -* mon: allow cap strings with . to be unquoted -* mon: allow logging level of cluster log (/var/log/ceph/ceph.log) to be adjusted -* mon: avoid rewriting full osdmaps on restart (Joao Luis) -* mon: continue to discover peer addr info during election phase -* mon: disallow CephFS snapshots until 'ceph mds set allow_new_snaps' (Greg Farnum) -* mon: do not expose uncommitted state from 'osd crush {add,set} ...' (Joao Luis) -* mon: fix 'ceph osd crush reweight ...' (Joao Luis) -* mon: fix 'osd crush move ...' command for buckets (Joao Luis) -* mon: fix byte counts (off by factor of 4) (Dan Mick, Joao Luis) -* mon: fix paxos corner case -* mon: kv properties for pools to support EC (Loic Dachary) -* mon: make 'osd pool rename' idempotent (Joao Luis) -* mon: modify 'auth add' semantics to make a bit more sense (Joao Luis) -* mon: new 'osd perf' command to dump recent performance information (Samuel Just) -* mon: new and improved 'ceph -s' or 'ceph status' command (more info, easier to read) -* mon: some auth check cleanups (Joao Luis) -* mon: track per-pool stats (Joao Luis) -* mon: warn about pools with bad pg_num -* mon: warn when mon data stores grow very large (Joao Luis) -* monc: fix small memory leak -* new wireshark patches pulled into the tree (Kevin Jones) -* objecter, librados: redirect requests based on cache tier config -* objecter: fix possible hang when cluster is unpaused (Josh Durgin) -* osd, librados: add new COPY_FROM rados operation -* osd, librados: add new COPY_GET rados operations (used by COPY_FROM) -* osd: 'osd recover clone overlap limit' option to limit cloning during recovery (Samuel Just) -* osd: COPY_GET on-wire encoding improvements (Greg Farnum) -* osd: add 'osd heartbeat min healthy ratio' configurable (was hard-coded at 33%) -* osd: add option to disable pg log debug code (which burns CPU) -* osd: allow cap strings with . to be unquoted -* osd: automatically detect proper xattr limits (David Zafman) -* osd: avoid extra copy in erasure coding reference implementation (Loic Dachary) -* osd: basic cache pool redirects (Greg Farnum) -* osd: basic whiteout, dirty flag support (not yet used) -* osd: bloom_filter encodability, fixes, cleanups (Loic Dachary, Sage Weil) -* osd: clean up and generalize copy-from code (Greg Farnum) -* osd: cls_hello OSD class example -* osd: erasure coding doc updates (Loic Dachary) -* osd: erasure coding plugin infrastructure, tests (Loic Dachary) -* osd: experiemental support for ZFS (zfsonlinux.org) (Yan, Zheng) -* osd: fix RWORDER flags -* osd: fix exponential backoff of slow request warnings (Loic Dachary) -* osd: fix handling of racing read vs write (Samuel Just) -* osd: fix version value returned by various operations (Greg Farnum) -* osd: generalized temp object infrastructure -* osd: ghobject_t infrastructure for EC (David Zafman) -* osd: improvements for compatset support and storage (David Zafman) -* osd: infrastructure to copy objects from other OSDs -* osd: instrument peering states (David Zafman) -* osd: misc copy-from improvements -* osd: opportunistic crc checking on stored data (off by default) -* osd: properly enforce RD/WR flags for rados classes -* osd: reduce blocking on backing fs (Samuel Just) -* osd: refactor recovery using PGBackend (Samuel Just) -* osd: remove old magical tmap->omap conversion -* osd: remove old pg log on upgrade (Samuel Just) -* osd: revert xattr size limit (fixes large rgw uploads) -* osd: use fdatasync(2) instead of fsync(2) to improve performance (Sam Just) -* pybind: fix blacklisting nonce (Loic Dachary) -* radosgw-agent: multi-region replication/DR -* rgw: complete in-progress requests before shutting down -* rgw: default log level is now more reasonable (Yehuda Sadeh) -* rgw: fix S3 auth with response-* query string params (Sylvain Munaut, Yehuda Sadeh) -* rgw: fix a few minor memory leaks (Yehuda Sadeh) -* rgw: fix acl group check (Yehuda Sadeh) -* rgw: fix inefficient use of std::list::size() (Yehuda Sadeh) -* rgw: fix major CPU utilization bug with internal caching (Yehuda Sadeh, Mark Nelson) -* rgw: fix ordering of write operations (preventing data loss on crash) (Yehuda Sadeh) -* rgw: fix ordering of writes for mulitpart upload (Yehuda Sadeh) -* rgw: fix various CORS bugs (Yehuda Sadeh) -* rgw: fix/improve swift COPY support (Yehuda Sadeh) -* rgw: improve help output (Christophe Courtaut) -* rgw: misc fixes to support DR (Josh Durgin, Yehuda Sadeh) -* rgw: per-bucket quota (Yehuda Sadeh) -* rgw: validate S3 tokens against keystone (Roald J. van Loon) -* rgw: wildcard support for keystone roles (Christophe Courtaut) -* rpm: fix junit dependencies (Alan Grosskurth) -* sysvinit radosgw: fix status return code (Danny Al-Gaaf) -* sysvinit rbdmap: fix error 'service rbdmap stop' (Laurent Barbe) -* sysvinit: add condrestart command (Dan van der Ster) -* sysvinit: fix shutdown order (mons last) (Alfredo Deza) - - - -v0.71 -===== - -This development release includes a significant amount of new code and -refactoring, as well as a lot of preliminary functionality that will be needed -for erasure coding and tiering support. There are also several significant -patch sets improving this with the MDS. - -Upgrading ---------- - -* The MDS now disallows snapshots by default as they are not - considered stable. The command 'ceph mds set allow_snaps' will - enable them. - -* For clusters that were created before v0.44 (pre-argonaut, Spring - 2012) and store radosgw data, the auto-upgrade from TMAP to OMAP - objects has been disabled. Before upgrading, make sure that any - buckets created on pre-argonaut releases have been modified (e.g., - by PUTing and then DELETEing an object from each bucket). Any - cluster created with argonaut (v0.48) or a later release or not - using radosgw never relied on the automatic conversion and is not - affected by this change. - -* Any direct users of the 'tmap' portion of the librados API should be - aware that the automatic tmap -> omap conversion functionality has - been removed. - -* Most output that used K or KB (e.g., for kilobyte) now uses a - lower-case k to match the official SI convention. Any scripts that - parse output and check for an upper-case K will need to be modified. - -Notable Changes ---------------- - -* build: Makefile refactor (Roald J. van Loon) -* ceph-disk: fix journal preallocation -* ceph-fuse: trim deleted inodes from cache (Yan, Zheng) -* ceph-fuse: use newer fuse api (Jianpeng Ma) -* ceph-kvstore-tool: new tool for working with leveldb (copy, crc) (Joao Luis) -* common: bloom_filter improvements, cleanups -* common: correct SI is kB not KB (Dan Mick) -* common: misc portability fixes (Noah Watkins) -* hadoop: removed old version of shim to avoid confusing users (Noah Watkins) -* librados: fix installed header #includes (Dan Mick) -* librbd, ceph-fuse: avoid some sources of ceph-fuse, rbd cache stalls -* mds: fix LOOKUPSNAP bug -* mds: fix standby-replay when we fall behind (Yan, Zheng) -* mds: fix stray directory purging (Yan, Zheng) -* mon: disallow CephFS snapshots until 'ceph mds set allow_new_snaps' (Greg Farnum) -* mon, osd: improve osdmap trimming logic (Samuel Just) -* mon: kv properties for pools to support EC (Loic Dachary) -* mon: some auth check cleanups (Joao Luis) -* mon: track per-pool stats (Joao Luis) -* mon: warn about pools with bad pg_num -* osd: automatically detect proper xattr limits (David Zafman) -* osd: avoid extra copy in erasure coding reference implementation (Loic Dachary) -* osd: basic cache pool redirects (Greg Farnum) -* osd: basic whiteout, dirty flag support (not yet used) -* osd: clean up and generalize copy-from code (Greg Farnum) -* osd: erasure coding doc updates (Loic Dachary) -* osd: erasure coding plugin infrastructure, tests (Loic Dachary) -* osd: fix RWORDER flags -* osd: fix exponential backoff of slow request warnings (Loic Dachary) -* osd: generalized temp object infrastructure -* osd: ghobject_t infrastructure for EC (David Zafman) -* osd: improvements for compatset support and storage (David Zafman) -* osd: misc copy-from improvements -* osd: opportunistic crc checking on stored data (off by default) -* osd: refactor recovery using PGBackend (Samuel Just) -* osd: remove old magical tmap->omap conversion -* pybind: fix blacklisting nonce (Loic Dachary) -* rgw: default log level is now more reasonable (Yehuda Sadeh) -* rgw: fix acl group check (Yehuda Sadeh) -* sysvinit: fix shutdown order (mons last) (Alfredo Deza) - -v0.70 -===== - -Upgrading ---------- - -* librados::Rados::pool_create_async() and librados::Rados::pool_delete_async() - don't drop a reference to the completion object on error, caller needs to take - care of that. This has never really worked correctly and we were leaking an - object - -* 'ceph osd crush set <id> <weight> <loc..>' no longer adds the osd to the - specified location, as that's a job for 'ceph osd crush add'. It will - however continue to work just the same as long as the osd already exists - in the crush map. - -Notable Changes ---------------- - -* mon: a few 'ceph mon add' races fixed (command is now idempotent) (Joao Luis) -* crush: fix name caching -* rgw: fix a few minor memory leaks (Yehuda Sadeh) -* ceph: improve parsing of CEPH_ARGS (Benoit Knecht) -* mon: avoid rewriting full osdmaps on restart (Joao Luis) -* crc32c: fix optimized crc32c code (it now detects arch support properly) -* mon: fix 'ceph osd crush reweight ...' (Joao Luis) -* osd: revert xattr size limit (fixes large rgw uploads) -* mds: fix heap profiler commands (Joao Luis) -* rgw: fix inefficient use of std::list::size() (Yehuda Sadeh) - - -v0.69 -===== - -Upgrading ---------- - -* The sysvinit /etc/init.d/ceph script will, by default, update the - CRUSH location of an OSD when it starts. Previously, if the - monitors were not available, this command would hang indefinitely. - Now, that step will time out after 10 seconds and the ceph-osd daemon - will not be started. - -* Users of the librados C++ API should replace users of get_version() - with get_version64() as the old method only returns a 32-bit value - for a 64-bit field. The existing 32-bit get_version() method is now - deprecated. - -* The OSDs are now more picky that request payload match their - declared size. A write operation across N bytes that includes M - bytes of data will now be rejected. No known clients do this, but - the because the server-side behavior has changed it is possible that - an application misusing the interface may now get errors. - -* The OSD now enforces that class write methods cannot both mutate an - object and return data. The rbd.assign_bid method, the lone - offender, has been removed. This breaks compatibility with - pre-bobtail librbd clients by preventing them from creating new - images. - -* librados now returns on commit instead of ack for synchronous calls. - This is a bit safer in the case where both OSDs and the client crash, and - is probably how it should have been acting from the beginning. Users are - unlikely to notice but it could result in lower performance in some - circumstances. Those who care should switch to using the async interfaces, - which let you specify safety semantics precisely. - -* The C++ librados AioComplete::get_version() method was incorrectly - returning an int (usually 32-bits). To avoid breaking library - compatibility, a get_version64() method is added that returns the - full-width value. The old method is deprecated and will be removed - in a future release. Users of the C++ librados API that make use of - the get_version() method should modify their code to avoid getting a - value that is truncated from 64 to to 32 bits. - - -Notable Changes ---------------- - -* build cleanly under clang (Christophe Courtaut) -* common: migrate SharedPtrRegistry to use boost::shared_ptr<> (Loic Dachary) -* doc: erasure coding design notes (Loic Dachary) -* improved intel-optimized crc32c support (~8x faster on my laptop!) -* librados: get_version64() method for C++ API -* mds: fix locking deadlock (David Disseldorp) -* mon, osd: initial CLI for configuring tiering -* mon: allow cap strings with . to be unquoted -* mon: continue to discover peer addr info during election phase -* mon: fix 'osd crush move ...' command for buckets (Joao Luis) -* mon: warn when mon data stores grow very large (Joao Luis) -* objecter, librados: redirect requests based on cache tier config -* osd, librados: add new COPY_FROM rados operation -* osd, librados: add new COPY_GET rados operations (used by COPY_FROM) -* osd: add 'osd heartbeat min healthy ratio' configurable (was hard-coded at 33%) -* osd: add option to disable pg log debug code (which burns CPU) -* osd: allow cap strings with . to be unquoted -* osd: fix version value returned by various operations (Greg Farnum) -* osd: infrastructure to copy objects from other OSDs -* osd: use fdatasync(2) instead of fsync(2) to improve performance (Sam Just) -* rgw: fix major CPU utilization bug with internal caching (Yehuda Sadeh, Mark Nelson) -* rgw: fix ordering of write operations (preventing data loss on crash) (Yehuda Sadeh) -* rgw: fix ordering of writes for mulitpart upload (Yehuda Sadeh) -* rgw: fix various CORS bugs (Yehuda Sadeh) -* rgw: improve help output (Christophe Courtaut) -* rgw: validate S3 tokens against keystone (Roald J. van Loon) -* rgw: wildcard support for keystone roles (Christophe Courtaut) -* sysvinit radosgw: fix status return code (Danny Al-Gaaf) -* sysvinit rbdmap: fix error 'service rbdmap stop' (Laurent Barbe) - -v0.68 -===== - -Upgrading ---------- - -* 'ceph osd crush set <id> <weight> <loc..>' no longer adds the osd to the - specified location, as that's a job for 'ceph osd crush add'. It will - however continue to work just the same as long as the osd already exists - in the crush map. - -* The OSD now enforces that class write methods cannot both mutate an - object and return data. The rbd.assign_bid method, the lone - offender, has been removed. This breaks compatibility with - pre-bobtail librbd clients by preventing them from creating new - images. - -* librados now returns on commit instead of ack for synchronous calls. - This is a bit safer in the case where both OSDs and the client crash, and - is probably how it should have been acting from the beginning. Users are - unlikely to notice but it could result in lower performance in some - circumstances. Those who care should switch to using the async interfaces, - which let you specify safety semantics precisely. - -* The C++ librados AioComplete::get_version() method was incorrectly - returning an int (usually 32-bits). To avoid breaking library - compatibility, a get_version64() method is added that returns the - full-width value. The old method is deprecated and will be removed - in a future release. Users of the C++ librados API that make use of - the get_version() method should modify their code to avoid getting a - value that is truncated from 64 to to 32 bits. - - - -Notable Changes ---------------- - -* ceph-fuse: fix problem with readahead vs truncate race (Yan, Zheng) -* ceph-post-file: new command to easily share logs or other files with ceph devs -* ceph: parse CEPH_ARGS env variable -* librados: fix async aio completion wakeup -* librados: hello_world example (Greg Farnum) -* librados: sync calls now return on commit (instead of ack) (Greg Farnum) -* mds: fix mds rejoin with legacy parent backpointer xattrs (Alexandre Oliva) -* mds: fix rare restart/failure race during fs creation -* mds: notify clients about deleted files (so they can release from their cache) (Yan, Zheng) -* mds: several bug fixes with clustered mds (Yan, Zheng) -* mon: allow logging level of cluster log (/var/log/ceph/ceph.log) to be adjusted -* mon: do not expose uncommitted state from 'osd crush {add,set} ...' (Joao Luis) -* mon: fix byte counts (off by factor of 4) (Dan Mick, Joao Luis) -* mon: fix paxos corner case -* mon: modify 'auth add' semantics to make a bit more sense (Joao Luis) -* mon: new 'osd perf' command to dump recent performance information (Samuel Just) -* mon: new and improved 'ceph -s' or 'ceph status' command (more info, easier to read) -* monc: fix small memory leak -* new wireshark patches pulled into the tree (Kevin Jones) -* objecter: fix possible hang when cluster is unpaused (Josh Durgin) -* osd: 'osd recover clone overlap limit' option to limit cloning during recovery (Samuel Just) -* osd: cls_hello OSD class example -* osd: experiemental support for ZFS (zfsonlinux.org) (Yan, Zheng) -* osd: instrument peering states (David Zafman) -* osd: properly enforce RD/WR flags for rados classes -* osd: remove old pg log on upgrade (Samuel Just) -* rgw: complete in-progress requests before shutting down -* rgw: fix S3 auth with response-* query string params (Sylvain Munaut, Yehuda Sadeh) -* sysvinit: add condrestart command (Dan van der Ster) |