Ceph0.88开发版发布，分布式文件系统

2014年11月23日源创会年度盛典（北京站）正在报名

Ceph 0.88 发布，此版本现已提供下载，是第一个 Giant 之后的开发版本。

Ceph 0.88 版本包括两个主要的特性：新的 AsyncMessenger（网络层的另一个实现版本），由 UnitedStack 的 Haomai Wang 制作；ceph-fuse 和 libcephfs 支持 POSIX 文件锁，由 Yan，Zheng 制作。同时，提升了 Giant 的稳定性，一些性能提升和 bug 修复，添加了一些 LTTNG 追踪点。

值得关注的新特性：

• ceph-disk: Scientific Linux support (Dan van der Ster)

• ceph-disk: respect –statedir for keyring (Loic Dachary)

• ceph-fuse, libcephfs: POSIX file lock support (Yan, Zheng)

• ceph-fuse, libcephfs: fix cap flush overflow (Greg Farnum, Yan, Zheng)

• ceph-fuse, libcephfs: fix root inode xattrs (Yan, Zheng)

• ceph-fuse, libcephfs: preserve dir ordering (#9178 Yan, Zheng)

• ceph-fuse, libcephfs: trim inodes before reconnecting to MDS (Yan, Zheng)

• ceph: do not parse injectargs twice (Loic Dachary)

• ceph: make ‘ceph -s’ output more readable (Sage Weil)

• ceph: new ‘ceph tell mds.$name_or_rank_or_gid’ (John Spray)

• ceph: test robustness (Joao Eduardo Luis)

• ceph_objectstore_tool: behave with sharded flag (#9661 David Zafman)

• cephfs-journal-tool: fix journal import (#10025 John Spray)

• cephfs-journal-tool: skip up to expire_pos (#9977 John Spray)

• cleanup rados.h definitions with macros (Ilya Dryomov)

• common: shared_cache unit tests (Cheng Cheng)

• config: add $cctid meta variable (Adam Crume)

• crush: fix buffer overrun for poorly formed rules (#9492 Johnu George)

• crush: improve constness (Loic Dachary)

• crushtool: add –location command (Sage Weil, Loic Dachary)

• default to libnss instead of crypto++ (Federico Gimenez)

• doc: ceph osd reweight vs crush weight (Laurent Guerby)

• doc: document the LRC per-layer plugin configuration (Yuan Zhou)

• doc: erasure code doc updates (Loic Dachary)

• doc: misc updates (Alfredo Deza, VRan Liu)

• doc: preflight doc fixes (John Wilkins)

• doc: update PG count guide (Gerben Meijer, Laurent Guerby, Loic Dachary)

• keyvaluestore: misc fixes (Haomai Wang)

• keyvaluestore: performance improvements (Haomai Wang)

• librados: add rados_pool_get_base_tier() call (Adam Crume)

• librados: cap buffer length (Loic Dachary)

• librados: fix objecter races (#9617 Josh Durgin)

• libradosstriper: misc fixes (Sebastien Ponce)

• librbd: add missing python docstrings (Jason Dillaman)

• librbd: add readahead (Adam Crume)

• librbd: fix cache tiers in list_children and snap_unprotect (Adam Crume)

• librbd: fix performance regression in ObjectCacher (#9513 Adam Crume)

• librbd: lttng tracepoints (Adam Crume)

• librbd: misc fixes (Xinxin Shu, Jason Dillaman)

• mds: fix sessionmap lifecycle bugs (Yan, Zheng)

• mds: initialize root inode xattr version (Yan, Zheng)

• mds: introduce auth caps (John Spray)

• mds: misc bugs (Greg Farnum, John Spray, Yan, Zheng, Henry Change)

• misc coverity fixes (Danny Al-Gaaf)

• mon: add ‘ceph osd rename-bucket …’ command (Loic Dachary)

• mon: clean up auth list output (Loic Dachary)

• mon: fix ‘osd crush link’ id resolution (John Spray)

• mon: fix misc error paths (Joao Eduardo Luis)

• mon: fix paxos off-by-one corner case (#9301 Sage Weil)

• mon: new ‘ceph pool ls [detail]’ command (Sage Weil)

• mon: wait for writeable before cross-proposing (#9794 Joao Eduardo Luis)

• msgr: avoid useless new/delete (Haomai Wang)

• msgr: fix delay injection bug (#9910 Sage Weil, Greg Farnum)

• msgr: new AsymcMessenger alternative implementation (Haomai Wang)

• msgr: prefetch data when doing recv (Yehuda Sadeh)

• osd: add erasure code corpus (Loic Dachary)

• osd: add misc tests (Loic Dachary, Danny Al-Gaaf)

• osd: cleanup boost optionals (William Kennington)

• osd: expose non-journal backends via ceph-osd CLI (Hoamai Wang)

• osd: fix JSON output for stray OSDs (Loic Dachary)

• osd: fix ioprio options (Loic Dachary)

• osd: fix transaction accounting (Jianpeng Ma)

• osd: misc optimizations (Xinxin Shu, Zhiqiang Wang, Xinze Chi)

• osd: use FIEMAP_FLAGS_SYNC instead of fsync (Jianpeng Ma)

• rados: fix put of /dev/null (Loic Dachary)

• rados: parse command-line arguments more strictly (#8983 Adam Crume)

• rbd-fuse: fix memory leak (Adam Crume)

• rbd-replay-many (Adam Crume)

• rbd-replay: –anonymize flag to rbd-replay-prep (Adam Crume)

• rbd: fix ‘rbd diff’ for non-existent objects (Adam Crume)

• rbd: fix error when striping with format 1 (Sebastien Han)

• rbd: fix export for image sizes over 2GB (Vicente Cheng)

• rbd: use rolling average for rbd bench-write throughput (Jason Dillaman)

• rgw: send explicit HTTP status string (Yehuda Sadeh)

• rgw: set length for keystone token validation request (#7796 Yehuda Sadeh, Mark Kirkwood)

• udev: fix rules for CentOS7/RHEL7 (Loic Dachary)

• use clock_gettime instead of gettimeofday (Jianpeng Ma)

• vstart.sh: set up environment for s3-tests (Luis Pabon)

GETTING CEPH

• Git at git://github.com/ceph/ceph.git

• Tarball at http://ceph.com/download/ceph-0.88.tar.gz

• For packages, see http://ceph.com/docs/master/install/get-packages

• For ceph-deploy, see http://ceph.com/docs/master/install/install-ceph-deploy

更多请看发行说明。