Ceph v0.94.3 发布，分布式文件系统

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　　Ceph v0.94.3 发布，建议所有0.94.x的用户更新，主要更新内容如下：
　　
升级

• 　　The pg ls-by-{pool,primary,osd} commands and pg ls now take the argument recovering instead of recovery in order to include the recovering pgs in the listed pgs.
  

重要更新：

• 　　librbd: aio calls may block (issue#11770, pr#4875, Jason Dillaman)
  
• 　　osd: make the all osd/filestore thread pool suicide timeouts separately configurable (issue#11701, pr#5159, Samuel Just)
  
• 　　mon: ceph fails to compile with boost 1.58 (issue#11982, pr#5122, Kefu Chai)
  
• 　　tests: TEST_crush_reject_empty must not run a mon (issue#12285,11975, pr#5208, Kefu Chai)
  
• 　　osd: FAILED assert(!old_value.deleted()) in upgrade:giant-x-hammer-distro-basic-multi run (issue#11983, pr#5121, Samuel Just)
  
• 　　build/ops: linking ceph to tcmalloc causes segfault on SUSE SLE11-SP3 (issue#12368, pr#5265, Thorsten Behrens)
  
• 　　common: utf8 and old gcc breakage on RHEL6.5 (issue#7387, pr#4687, Kefu Chai)
  
• 　　crush: take crashes due to invalid arg (issue#11740, pr#4891, Sage Weil)
  
• 　　rgw: need conversion tool to handle fixes following #11974 (issue#12502, pr#5384, Yehuda Sadeh)
  
• 　　rgw: Swift API: support for 202 Accepted response code on container creation (issue#12299, pr#5214, Radoslaw Zarzynski)
  
• 　　common: Log::reopen_log_file: take m_flush_mutex (issue#12520, pr#5405, Samuel Just)
  
• 　　rgw: Properly respond to the Connection header with Civetweb (issue#12398, pr#5284, Wido den Hollander)
  
• 　　rgw: multipart list part response returns incorrect field (issue#12399, pr#5285, Henry Chang)
  
• 　　build/ops: ceph.spec.in: 95-ceph-osd.rules, mount.ceph, and mount.fuse.ceph not installed properly on SUSE (issue#12397, pr#5283, Nathan Cutler)
  
• 　　rgw: radosgw-admin dumps user info twice (issue#12400, pr#5286, guce)
  
• 　　doc: fix doc build (issue#12180, pr#5095, Kefu Chai)
  
• 　　tests: backport 11493 fixes, and test, preventing ec cache pools (issue#12314, pr#4961, Samuel Just)
  
• 　　rgw: does not send Date HTTP header when civetweb frontend is used (issue#11872, pr#5228, Radoslaw Zarzynski)
  
• 　　mon: pg ls is broken (issue#11910, pr#5160, Kefu Chai)
  
• 　　librbd: A client opening an image mid-resize can result in the object map being invalidated (issue#12237, pr#5279, Jason Dillaman)
  
• 　　doc: missing man pages for ceph-create-keys, ceph-disk-* (issue#11862, pr#4846, Nathan Cutler)
  
• 　　tools: ceph-post-file fails on rhel7 (issue#11876, pr#5038, Sage Weil)
  
• 　　build/ops: rcceph script is buggy (issue#12090, pr#5028, Owen Synge)
  
• 　　rgw: Bucket header is enclosed by quotes (issue#11874, pr#4862, Wido den Hollander)
  
• 　　build/ops: packaging: add SuSEfirewall2 service files (issue#12092, pr#5030, Tim Serong)
  
• 　　rgw: Keystone PKI token expiration is not enforced (issue#11722, pr#4884, Anton Aksola)
  
• 　　build/ops: debian/control: ceph-common (>> 0.94.2) must be >= 0.94.2-2 (issue#12529,11998, pr#5417, Loic Dachary)
  
• 　　mon: Clock skew causes missing summary and confuses Calamari (issue#11879, pr#4868, Thorsten Behrens)
  
• 　　rgw: rados objects wronly deleted (issue#12099, pr#5117, wuxingyi)
  
• 　　tests: kernel_untar_build fails on EL7 (issue#12098, pr#5119, Greg Farnum)
  
• 　　fs: Fh ref count will leak if readahead does not need to do read from osd (issue#12319, pr#5427, Zhi Zhang)
  
• 　　mon: OSDMonitor: allow addition of cache pool with non-empty snaps with co… (issue#12595, pr#5252, Samuel Just)
  
• 　　mon: MDSMonitor: handle MDSBeacon messages properly (issue#11979, pr#5123, Kefu Chai)
  
• 　　tools: ceph-disk: get_partition_type fails on /dev/cciss… (issue#11760, pr#4892, islepnev)
  
• 　　build/ops: max files open limit for OSD daemon is too low (issue#12087, pr#5026, Owen Synge)
  
• 　　mon: add an “osd crush tree” command (issue#11833, pr#5248, Kefu Chai)
  
• 　　mon: mon crashes when “ceph osd tree 85 –format json” (issue#11975, pr#4936, Kefu Chai)
  
• 　　build/ops: ceph / ceph-dbg steal ceph-objecstore-tool from ceph-test / ceph-test-dbg (issue#11806, pr#5069, Loic Dachary)
  
• 　　rgw: DragonDisk fails to create directories via S3: MissingContentLength (issue#12042, pr#5118, Yehuda Sadeh)
  
• 　　build/ops: /usr/bin/ceph from ceph-common is broken without installing ceph (issue#11998, pr#5206, Ken Dreyer)
  
• 　　build/ops: systemd: Increase max files open limit for OSD daemon (issue#11964, pr#5040, Owen Synge)
  
• 　　build/ops: rgw/logrotate.conf calls service with wrong init script name (issue#12044, pr#5055, wuxingyi)
  
• 　　common: OPT_INT option interprets 3221225472 as -1073741824, and crashes in Throttle::Throttle() (issue#11738, pr#4889, Kefu Chai)
  
• 　　doc: doc/release-notes: v0.94.2 (issue#11492, pr#4934, Sage Weil)
  
• 　　common: admin_socket: close socket descriptor in destructor (issue#11706, pr#4657, Jon Bernard)
  
• 　　rgw: Object copy bug (issue#11755, pr#4885, Javier M. Mellid)
  
• 　　rgw: empty json response when getting user quota (issue#12245, pr#5237, wuxingyi)
  
• 　　fs: cephfs Dumper tries to load whole journal into memory at once (issue#11999, pr#5120, John Spray)
  
• 　　rgw: Fix tool for #11442 does not correctly fix objects created via multipart uploads (issue#12242, pr#5229, Yehuda Sadeh)
  
• 
  　　rgw: Civetweb RGW appears to report full>
  
• 　　osd: stuck incomplete (issue#12362, pr#5269, Samuel Just)
  
• 　　osd: start_flush: filter out removed snaps before determining snapc’s (issue#11911, pr#4899, Samuel Just)
  
• 　　librbd: internal.cc: 1967: FAILED assert(watchers.size() == 1) (issue#12239, pr#5243, Jason Dillaman)
  
• 　　librbd: new QA client upgrade tests (issue#12109, pr#5046, Jason Dillaman)
  
• 　　librbd: [ FAILED ] TestLibRBD.ExclusiveLockTransition (issue#12238, pr#5241, Jason Dillaman)
  
• 　　rgw: Swift API: XML document generated in response for GET on account does not contain account name (issue#12323, pr#5227, Radoslaw Zarzynski)
  
• 　　rgw: keystone does not support chunked input (issue#12322, pr#5226, Hervé Rousseau)
  
• 　　mds: MDS is crashed (mds/CDir.cc: 1391: FAILED assert(!is_complete())) (issue#11737, pr#4886, Yan, Zheng)
  
• 　　cli: ceph: cli interactive mode does not understand quotes (issue#11736, pr#4776, Kefu Chai)
  
• 　　librbd: add valgrind memory checks for unit tests (issue#12384, pr#5280, Zhiqiang Wang)
  
• 　　build/ops: admin/build-doc: script fails silently under certain circumstances (issue#11902, pr#4877, John Spray)
  
• 　　osd: Fixes for rados ops with snaps (issue#11908, pr#4902, Samuel Just)
  
• 　　build/ops: ceph.spec.in: ceph-common subpackage def needs tweaking for SUSE/openSUSE (issue#12308, pr#4883, Nathan Cutler)
  
• 　　fs: client: reference counting ‘struct Fh’ (issue#12088, pr#5222, Yan, Zheng)
  
• 　　build/ops: ceph.spec: update OpenSUSE BuildRequires (issue#11611, pr#4667, Loic Dachary)
  

　　更详细内容请查看网站的更新日志： changelog。
　　下载地址：

• 　　Git at git://github.com/ceph/ceph.git
  
• 　　Tarball at http://ceph.com/download/ceph-0.94.3.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
  

　　Ceph是加州大学Santa Cruz分校的Sage Weil（DreamHost的联合创始人）专为博士论文设计的新一代自由软件分布式文件系统。自2007年毕业之后，Sage开始全职投入到Ceph开发之中，使其能适用于生产环境。Ceph的主要目标是设计成基于POSIX的没有单点故障的分布式文件系统，使数据能容错和无缝的复制。2010年3 月，Linus Torvalds将Ceph client合并到内 核2.6.34中。IBM开发者园地的一篇文章 探讨了Ceph的架构，它的容错实现和简化海量数据管理的功能。
　　Ceph 中文文档：http://docs.openfans.org/ceph
　　Ceph 的 4 个模块：

　　Ceph 生态系统：