Ceph is a distributed object, block, and file storage platform
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Sam Lang 4977f3eab0 mds: Delay export on missing inodes for reconnect
The reconnect caps sent by the client on reconnect may not have
inodes found in the inode cache until after clientreplay (when
the client creates a new file, for example). Currently, we send an
export for that cap to the client if we don't see an inode in the cache
and path_is_mine() returns false (for example, if the client didn't
send a path because the file was already unlinked).
Instead, we want to delay handling of the reconnect cap until
clientreplay completes.

This patch modifies handle_client_reconnect() so that we don't assume
the cap isn't ours if we don't have an inode for it, but instead delay
recovery for later. An export cap message is only sent if the inode exists
and the cap isn't ours (non-auth) during reconnect. If any remaining
recovered caps exist in the recovered list once the mds goes active, we
send export messages at that point.

Also, after removing the path_is_mine check,
MDCache::parallel_fetch_traverse_dir() needs to skip non-auth dirfrags.

Fixes #4451.
Signed-off-by: Sam Lang <sam.lang@inktank.com>
Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
Reviewed-by: Yan, Zheng <zheng.z.yan@intel.com>
Reviewed-by: Greg Farnum <greg@inktank.com>
2013-04-11 10:25:46 -05:00
admin doc: add JavaDoc to Sphinx 2012-10-26 10:28:50 -07:00
ceph-object-corpus@0655429f62 fix ceph-object-corpus submodule commit 2013-02-27 21:04:49 -08:00
debian debian/ceph-test.install: add installed but not packaged files 2013-04-04 18:38:11 +02:00
doc Adds "mds fail 0" command to operations commmand reference. 2013-04-02 13:57:53 -04:00
fusetrace fusetrace_ll.cc: reduce scope of 'int err' in main() 2013-03-11 12:13:06 +01:00
keys keys: renew autobuild.asc key 2013-02-07 22:31:40 -08:00
m4 ac_prog_javah.m4: Use AC_CANONICAL_TARGET instead of AC_CANONICAL_SYSTEM. 2013-01-14 14:11:54 -08:00
man man: make the cephfs man page marginally more truthful 2013-02-19 17:48:26 -08:00
qa rbd qa/workunits: add rbd read data test 2013-04-10 15:54:13 -05:00
src mds: Delay export on missing inodes for reconnect 2013-04-11 10:25:46 -05:00
udev udev: trigger on dmcrypted osd partitions 2013-02-15 14:18:34 -08:00
wireshark wireshark/ceph/packet-ceph.c: fix some issues from cppcheck 2013-02-14 10:27:40 -08:00
.gitignore .gitignore: cleanup and sort entries 2013-02-10 20:52:21 +01:00
.gitmodules remove leveldb from master branch 2013-02-27 14:22:48 +01:00
AUTHORS Relax Throttle::_reset_max conditions and associated unit tests 2013-02-05 20:06:04 +01:00
autogen.sh Build: Change build to always use system leveldb 2013-02-26 20:07:49 -08:00
ceph.spec.in ceph.spec.in: add installed but not packaged files to ceph-test 2013-04-04 18:30:40 +02:00
ChangeLog
CodingStyle
configure.ac v0.60 2013-04-01 12:22:53 -07:00
COPYING Unit tests for chain_xattr.cc 2013-02-11 23:14:30 +01:00
COPYING-LGPL2.1
do_autogen.sh
Doxyfile
INSTALL
Makefile.am udev: trigger ceph-disk-activate directly from udev 2013-02-13 22:18:59 -08:00
NEWS
PendingReleaseNotes PendingReleaseNotes: note about rbd progress output 2013-04-01 08:56:07 -07:00
README README: fix dependency lists 2013-04-02 13:01:04 -07:00
RELEASE_CHECKLIST
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-virualenv
- doxygen
- ditaa
- libxml2-dev
- libxslt-dev
- dot
- graphviz

For example:

	sudo apt-get install python-dev python-pip python-virualenv 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
- gcc
- g++
- 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

For example:

	$ apt-get install automake autoconf gcc g++ 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