Please see http://ceph.com/ for current info.
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.
You can clone from github with
git clone git@github.com:ceph/ceph
or, if you are not a github user,
git clone git://github.com/ceph/ceph
Ceph contains many git submodules that need to be checked out with
git submodule update --init --recursive
The list of Debian or RPM packages dependencies can be installed with:
./install-deps.sh
Developers, please refer to the Developer Guide for more information, otherwise, you can build the server daemons, and FUSE client, by executing the following:
./autogen.sh
./configure
make
(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] ..
make
This assumes you make your build dir a subdirectory of the ceph.git checkout. If you put it elsewhere, just replace .. above with a correct path to the checkout.
The configure script will complain about any missing dependencies as it goes. You can also refer to debian/control or ceph.spec.in 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
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
dpkg-buildpackage
For RPM-based systems (Red Hat, SUSE, etc.),
rpmbuild
To run a functional test cluster,
cd src
./vstart.sh -d -n -x -l
./ceph -s
Almost all of the usual commands are available in the src/ directory. For example,
./rados -p rbd bench 30 write
./rbd create foo --size 1000
To shut down the test cluster,
./stop.sh
To start or stop individual daemons, the sysvinit script should work:
./init-ceph restart osd.0
./init-ceph stop
Any commands or paths related to CMake are from the "build" directory. This directory, known as ${CMAKE_BINARY_DIR} to cmake, was created in the section above titled "Building Ceph".
To run a functional test cluster,
cd build
./path/to/ceph/src/vstart.sh -d -n -x -l
./bin/ceph -s
Almost all of the usual commands are available in the bin/ directory. For example,
./bin/rados -p rbd bench 30 write
./bin/rbd create foo --size 1000
To shut down the test cluster,
./path/to/ceph/src/stop.sh
To start or stop individual daemons, the sysvinit script should work:
./bin/init-ceph restart osd.0
./bin/init-ceph stop
To run all tests, a simple
cd src
make check
will suffice. Each test generates a log file that is the name of the test with .log appended. For example, unittest_addrs generates a unittest_addrs.log and test/osd/osd-config.sh puts its output in test/osd/osd-config.sh.log.
To run an individual test manually, you may want to clean up with
rm -rf testdir /tmp/*virtualenv
./stop.sh
and then run a given test like so:
./unittest_addrs
Many tests are bash scripts that spin up small test clusters, and must be run like so:
CEPH_DIR=. test/osd/osd-bench.sh # or whatever the test is
Any commands or paths related to CMake are from the "build" directory. This directory, known as ${CMAKE_BINARY_DIR} to cmake, was created in the section above titled "Building Ceph".
To run build and run all tests, run make check. make check builds all the
unit tests, all the dependencies for other tests, and executes them with ctest
command.
cd build
cmake [options] ..
make check
To run an individual test manually, run the ctest command with -R (regex matching):
ctest -R [test name]
To run an individual test manually and see all the tests output, run the ctest command with the -V (verbose) flag:
ctest -V -R [test name]
To run an tests manually and run the jobs in parallel, run the ctest command with the -j flag:
ctest -j [number of jobs]
There are many other flags you can give the ctest command for better control over manual test execution. To view these options run:
man ctest
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`
To build the documentation, ensure that you are in the top-level `/ceph directory, and execute the build script. For example:
admin/build-doc