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Ceph 0.87.2 Giant 发布下载，分布式文件系统

Ceph 0.87.2 Giant 发布下载，此版本主要更新信息如下：

ceph-objectstore-tool: only output unsupported features when incompatible (#11176 David Zafman)
common: do not implicitly unlock rwlock on destruction (Federico Simoncelli)
common: make wait timeout on empty queue configurable (#10818 Samuel Just)
crush: pick ruleset id that matches and rule id (Xiaoxi Chen)
crush: set_choose_tries = 100 for new erasure code rulesets (#10353 Loic Dachary)
librados: check initialized atomic safely (#9617 Josh Durgin)
librados: fix failed tick_event assert (#11183 Zhiqiang Wang)
librados: fix looping on skipped maps (#9986 Ding Dinghua)
librados: fix op submit with timeout (#10340 Samuel Just)
librados: pybind: fix memory leak (#10723 Billy Olsen)
librados: pybind: keep reference to callbacks (#10775 Josh Durgin)
librados: translate operation flags from C APIs (Matthew Richards)
libradosstriper: fix write_full on ENOENT (#10758 Sebastien Ponce)
libradosstriper: use strtoll instead of strtol (Dongmao Zhang)
mds: fix assertion caused by system time moving backwards (#11053 Yan, Zheng)
4mon: allow injection of random delays on writes (Joao Eduardo Luis)
mon: do not trust small osd epoch cache values (#10787 Sage Weil)
mon: fail non-blocking flush if object is being scrubbed (#8011 Samuel Just)
mon: fix division by zero in stats dump (Joao Eduardo Luis)
mon: fix get_rule_avail when no osds (#10257 Joao Eduardo Luis)
mon: fix timeout rounds period (#10546 Joao Eduardo Luis)
mon: ignore osd failures before up_from (#10762 Dan van der Ster, Sage Weil)

详细更新信息请查看发行页面。

此版本现已提供下载：

Source code (zip)
Source code (tar.gz)

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

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Ceph环境配置文档 PDF http://www.linuxidc.com/Linux/2013-05/85212.htm

CentOS 6.3上部署Ceph http://www.linuxidc.com/Linux/2013-05/85213.htm

Ceph的安装过程 http://www.linuxidc.com/Linux/2013-05/85210.htm

HOWTO Install Ceph On FC12, FC上安装Ceph分布式文件系统 http://www.linuxidc.com/Linux/2013-05/85209.htm

Ceph 文件系统安装 http://www.linuxidc.com/Linux/2013-05/85208.htm

CentOS 6.2 64位上安装Ceph 0.47.2 http://www.linuxidc.com/Linux/2013-05/85206.htm

Ubuntu 12.04 Ceph分布式文件系统 http://www.linuxidc.com/Linux/2013-04/82588.htm

Fedora 14上安装 Ceph 0.24 http://www.linuxidc.com/Linux/2011-01/31580.htm

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Ceph 的 4 个模块：