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Latest commit b3d766b Apr 28, 2016 @jdurgin jdurgin Merge pull request #8568 from ddiss/osd-librados-writesame
OSD and librados writesame support

Reviewed-by: Josh Durgin <>
Reviewed-by: Haomai Wang <>
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admin pybind: move cephfs to Cython Feb 29, 2016
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ceph-object-corpus @ 47fbf8c Revert "common/*Formatters: Split Formatters" Jan 15, 2016
cmake/modules cmake: test passing Apr 14, 2016
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keys new release key Sep 17, 2015
m4 crc32c: add aarch64 optimized crc32c implementation Mar 17, 2015
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systemd systemd: enable all the ceph .target services by default Apr 27, 2016
udev udev: remove 60-ceph-partuuid-workaround-rules Apr 18, 2016
.gitignore gitignore: ignore backup files from editors etc. Jan 27, 2016
.gitmodule_mirrors remove libs3 submodule Jul 30, 2015
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CMakeLists.txt cmake: test-ceph-helpers working Apr 14, 2016
CONTRIBUTING.rst doc: rename SubmittingPatches to SubmittingPatches.rst Jan 20, 2016
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SubmittingPatches.rst doc: amend Fixes instructions in SubmittingPatches Mar 25, 2016 rocksdb: build rocksdb with its own Makefile Oct 17, 2015 rpm: Add rpm scripts for ceph-rbd-mirror Apr 27, 2016 10.2.0 Apr 20, 2016 tools: fix -R Sep 2, 2015
doc_deps.deb.txt doc: fix dependencies Apr 13, 2016 install-deps: Adding gcc for debian based systems Apr 25, 2016 remove rest-bench Jul 30, 2015 bz2 only Jun 1, 2015
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Ceph - a scalable distributed storage system

Please see for current info.

Contributing Code

Most of Ceph is licensed under the LGPL version 2.1. Some miscellaneous code is under BSD-style license or is public domain. The documentation is licensed under Creative Commons Attribution-ShareAlike (CC BY-SA). There are a handful of headers included here that are licensed under the GPL. Please see the file COPYING for a full inventory of licenses by file.

Code contributions must include a valid "Signed-off-by" acknowledging the license for the modified or contributed file. Please see the file SubmittingPatches.rst for details on what that means and on how to generate and submit patches.

We do not require assignment of copyright to contribute code; code is contributed under the terms of the applicable license.

Build Prerequisites

The list of Debian or RPM packages dependencies can be installed with:


Note: libsnappy-dev and libleveldb-dev are not available upstream for Debian Squeeze. Backports for Ceph can be found at

Building Ceph


Developers, please refer to the Developer Guide for more information, otherwise, you can build the server daemons, and FUSE client, by executing the following:


(Note that the FUSE client will only be built if libfuse is present.)


Prerequisite: CMake 2.8.11

Build instructions:

mkdir build
cd build
cmake [options] /path/to/ceph/src/dir

(Note that /path/to/ceph/src/dir can be in the tree and out of the tree)


The configure script will complain about any missing dependencies as it goes. You can also refer to debian/control or for the package build dependencies on those platforms. In many cases, dependencies can be avoided with --with-foo or --without-bar switches. For example,

./configure --with-nss         # use libnss instead of libcrypto++
./configure --without-radosgw  # do not build radosgw
./configure --without-tcmalloc # avoid google-perftools dependency

Building packages

You can build packages for Debian or Debian-derived (e.g., Ubuntu) systems with

sudo apt-get install dpkg-dev
dpkg-checkbuilddeps        # make sure we have all dependencies

For RPM-based systems (Red Hat, SUSE, etc.),


Building the Documentation


The list of package dependencies for building the documentation can be found in doc_deps.deb.txt:

sudo apt-get install `cat doc_deps.deb.txt`

Building the Documentation

To build the documentation, ensure that you are in the top-level `/ceph directory, and execute the build script. For example:

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