mirror of
https://github.com/ceph/ceph
synced 2024-12-19 09:57:05 +00:00
Ceph is a distributed object, block, and file storage platform
c119afa075
Set this up with the existing at_version member, but only increase it for user_modify ops. Use this when logging the PG's user_version. In order to maintain compatibility with old clients on classic pools, we force user_version to follow at_version whenever it's updated. Now that we have and are maintaining this PG user version, use it for the user version on ops that get ENOENT back, when short-circuiting replies as part of reply_op_error()[1], or when replying to repops in eval_repop; further use it for the cls_current_version() function. This is a small semantic change for that function, as previously it would generally return the same value as the user would get sent back via MOSDOpReply -- but I don't think it was something you could count on. We now define it as being the user version of the PG at the start of the op, and as a bonus it is defined even for read ops (the at_version is only filled in on write operations). [1]: We tweak PGLog to make it easier to retrieve both user and PG versions. Signed-off-by: Greg Farnum <greg@inktank.com> |
||
|---|---|---|
| admin | ||
| ceph-object-corpus@84a153afa7 | ||
| debian | ||
| doc | ||
| examples/librados | ||
| fusetrace | ||
| keys | ||
| m4 | ||
| man | ||
| qa | ||
| share | ||
| src | ||
| udev | ||
| wireshark | ||
| .gitignore | ||
| .gitmodules | ||
| AUTHORS | ||
| autogen.sh | ||
| ceph.spec.in | ||
| ChangeLog | ||
| CodingStyle | ||
| configure.ac | ||
| COPYING | ||
| COPYING-LGPL2.1 | ||
| do_autogen.sh | ||
| Doxyfile | ||
| INSTALL | ||
| Makefile.am | ||
| NEWS | ||
| PendingReleaseNotes | ||
| README | ||
| SubmittingPatches | ||
============================================ Ceph - a scalable distributed storage system ============================================ Please see http://ceph.com/ 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 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. Building Ceph ============= To prepare the source tree after it has been git cloned, $ git submodule update --init To build the server daemons, and FUSE client, execute the following: $ ./autogen.sh $ ./configure $ make (Note that the FUSE client will only be built if libfuse is present.) Dependencies ------------ 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 and avoid libfcgi-dev $ ./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 dpkg-dev $ dpkg-checkbuilddeps # make sure we have all dependencies $ dpkg-buildpackage For RPM-based systems (Redhat, Suse, etc.), $ rpmbuild Building the Documentation ========================== Prerequisites ------------- To build the documentation, you must install the following: - python-dev - python-pip - python-virtualenv - doxygen - ditaa - libxml2-dev - libxslt-dev - dot - graphviz For example: sudo apt-get install python-dev python-pip python-virtualenv doxygen ditaa libxml2-dev libxslt-dev dot graphviz Building the Documentation -------------------------- To build the documentation, ensure that you are in the top-level `/ceph directory, and execute the build script. For example: $ admin/build-doc Build Prerequisites ------------------- To build the source code, you must install the following: - automake - autoconf - pkg-config - gcc - g++ - make - libboost-dev - libedit-dev - libssl-dev - libtool - libfcgi - libfcgi-dev - libfuse-dev - linux-kernel-headers - libcrypto++-dev - libaio-dev - libgoogle-perftools-dev - libkeyutils-dev - uuid-dev - libatomic-ops-dev - libboost-program-options-dev - libboost-thread-dev - libexpat1-dev - libleveldb-dev - libsnappy-dev - libcurl4-gnutls-dev - python-argparse - python-flask For example: $ apt-get install automake autoconf pkg-config gcc g++ make libboost-dev libedit-dev libssl-dev libtool libfcgi libfcgi-dev libfuse-dev linux-kernel-headers libcrypto++-dev libaio-dev libgoogle-perftools-dev libkeyutils-dev uuid-dev libatomic-ops-dev libboost-program-options-dev libboost-thread-dev libexpat1-dev libleveldb-dev libsnappy-dev libcurl4-gnutls-dev python-argparse python-flask