Ceph is a distributed object, block, and file storage platform
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Greg Farnum b2b44d47c9 mds: Drop locks and auth pins when waiting for freezingtree
In most cases we don't end up in this branch because there's an escape
if you already have an auth_pin on the ref in question. But when
you've got snapshots going on, you can process the request, block on
a lock state change, commit a snapshot change to the inode, and then
try to process the request again. On this second attempt, though,
you end up with a different ref which you don't have a pin on.
Deadlock and breakage ensues!
To fix, drop all locks and auth pins when you wait -- either
you don't have any to drop anyway, or you've got them on a previous
version of the inode that isn't useful anymore.

Signed-off-by: Greg Farnum <gregory.farnum@dreamhost.com>
2011-07-20 13:22:19 -07:00
debian obsync: Depend on python-pyxattr instead of python-xattr 2011-07-13 09:05:39 -07:00
fusetrace
man obsync: improve formatting a little bit 2011-07-01 15:44:33 -07:00
qa qa: make dir tests run by default in rename all.sh 2011-07-08 11:09:32 -07:00
src mds: Drop locks and auth pins when waiting for freezingtree 2011-07-20 13:22:19 -07:00
udev
wireshark
.gitignore gitignore: ignore Eclipse files/folders 2011-07-18 12:18:40 -07:00
AUTHORS
autogen.sh
ceph.spec.in Remove libcrush from packaging 2011-05-19 11:33:17 -07:00
ChangeLog
CodingStyle CodingStyle: whitespace 2011-07-14 10:50:08 -07:00
configure.ac Don't build build tests unless requested 2011-07-13 16:12:40 -07:00
COPYING
do_autogen.sh do_autogen: add -H for --with-hadoop 2011-04-25 11:05:43 -07:00
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Makefile.am qa: do not use automake for workunit makefiles 2011-06-14 12:53:33 -07:00
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Ceph - a scalable distributed file system
-----------------------------------------

Please see http://ceph.newdream.net/ for current info.

----

To build the server daemons, and FUSE client,

$ ./autogen.sh
$ ./configure

$ make
 or
$ cd src
$ make

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

----

A quick summary of binaries that will be built in src/

daemons:
 cmon -- monitor daemon.  handles cluster state and configuration
         information.
 cosd -- storage daemon.  stores objects on a given block device.
 cmds -- metadata daemon.  handles file system namespace.
 ceph -- send management commands to the monitor cluster.

userland clients:
 cfuse -- fuse client.
 csyn -- synthetic workload generator client.

tools:
 monmaptool -- create/edit mon map
 osdmaptool -- create/edit osd map 
 crushtool -- create/edit crush map

scripts:
 mkcephfs -- cluster mkfs tool
 init-ceph -- init.d start/stop script