Ceph is a distributed object, block, and file storage platform
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Sage Weil 92fb44d115 mon: populate last_beacon properly for mds liveness check
It was only populating on paxos updates, but that missed the case where the
leader moves from one monitor to another (live) peon, who has an empty last_beacon.
Move it where it makes the most sense.
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Ceph - a scalable distributed file system
-----------------------------------------

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

----

To build the Linux kernel client,

$ cd src/kernel
$ make
or
$ make KERNELDIR=/path/to/linux
$ insmod ceph.ko
$ mount -t ceph 1.2.3.4:/ /mnt/ceph
...

----

To build the server daemons, and FUSE client,

$ ./autogen.sh
$ ./configure
$ 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.
 cmonctl -- send commands to the monitor cluster.

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

tools:
 mkmonfs -- create a fresh monfs (for a new filesystem)
 monmaptool -- create/edit mon map
 osdmaptool -- create/edit osd map 
 crushtool -- create/edit crush map
 dupstore -- duplicate an osd object store (offline)

development/debugging:
 fakesyn -- simulator with synthetic workload
 fakefuse -- simulator that mounts with fuse

----

see also src/README