2.0.0rc4 >From wiki Now the question is what about adding a new server? Currently hash works based on directory level distribution. Ie, a given file's parent directory will have information of how the hash numbers are mapped to subvolumes. So, adding new node doesn't disturb any current setup as the files/dirs present already have its information preserved. Whatever new directory gets created, will start considering new volume for scheduling files. But I encounter strange problem: after adding new nodes, old files are disappeard. And another problem, I can not use following line to mount a volume glusterfs --volfile-server=10.10.123.21 --volfile-server-port=6986 --volume-name=dht0-raw /mnt [root@xen-727057 ~]# glusterfs --volfile=/root/glusterfs.vol --volume-name=dht0-raw /mnt [root@xen-727057 ~]# cp * /mnt/ [root@xen-727057 ~]# ll /mnt/ total 184 -rw-r--r-- 1 root root 78 Mar 15 12:48 112.log -rw------- 1 root root 1434 Mar 15 12:48 anaconda-ks.cfg -rwxr-xr-x 1 root root 9506 Mar 15 12:48 a.out -rw-r--r-- 1 root root 5350 Mar 15 12:48 decode.c -rw-r--r-- 1 root root 2097 Mar 15 12:48 glusterfs.vol -rw-r--r-- 1 root root 34517 Mar 15 12:48 install.log -rw-r--r-- 1 root root 3670 Mar 15 12:48 install.log.syslog -rw-r--r-- 1 root root 1930 Mar 15 12:48 install.sh -rw-r--r-- 1 root root 17953 Mar 15 12:48 linux.tgz -rw-r--r-- 1 root root 29224 Mar 15 12:48 log -rwxr-xr-x 1 root root 2805 Mar 15 12:48 mksimplerpm.sh -rwxr-xr-x 1 root root 9955 Mar 15 12:48 nbody -rw-r--r-- 1 root root 4783 Mar 15 12:48 nbody.cpp -rwxr-xr-x 1 root root 13119 Mar 15 12:48 redux -rw-r--r-- 1 root root 7104 Mar 15 12:48 redux.cpp -rw-r--r-- 1 root root 1517 Mar 15 12:48 teste.cpp -rw-r--r-- 1 root root 124 Mar 15 12:48 uname.list [root@xen-727057 ~]# umount /mnt [root@xen-727057 ~]# vim glusterfs.vol ## I add some extra volumns here. # goto every node, restart glusterfsd [root@xen-727057 ~]# glusterfs --volfile=/root/glusterfs.vol --volume-name=dht0-raw /mnt [root@xen-727057 ~]# ll /mnt/ total 48 -rw-r--r-- 1 root root 5350 Mar 15 12:48 decode.c -rw-r--r-- 1 root root 29224 Mar 15 12:48 log -rw-r--r-- 1 root root 7104 Mar 15 12:48 redux.cpp [root@xen-727057 ~]# mkdir /mnt/XXX [root@xen-727057 ~]# ll /mnt/XXX/ total 0 [root@xen-727057 ~]# ll /mnt/ total 48 -rw-r--r-- 1 root root 5350 Mar 15 12:48 decode.c -rw-r--r-- 1 root root 29224 Mar 15 12:48 log -rw-r--r-- 1 root root 7104 Mar 15 12:48 redux.cpp drwxr-xr-x 2 root root 48 Mar 15 12:48 XXX [root@xen-727057 ~]# ====Server volumes: volume brick1-posix type storage/posix # POSIX FS translator option directory /exports/disk1 # Export this directory end-volume volume brick1-locks type features/locks subvolumes brick1-posix end-volume volume brick1 type performance/io-threads subvolumes brick1-locks option thread-count 16 option cache-size 256m end-volume volume brick2-posix type storage/posix # POSIX FS translator option directory /exports/disk2 # Export this directory end-volume volume brick2-locks type features/locks subvolumes brick2-posix end-volume volume brick2 type performance/io-threads subvolumes brick2-locks option thread-count 16 option cache-size 256m end-volume #volume brick-ns # type storage/posix # POSIX FS translator # option directory /exports/ns # Export this directory #end-volume ### Add network serving capability to above brick. volume server type protocol/server option transport-type tcp/server # For TCP/IP transport option listen-port 6986 # Default is 6996 option client-volume-filename /etc/glusterfs/glusterfs.vol subvolumes brick1 brick2 option auth.ip.brick1.allow 10.10.*,10.11.*,10.15.*,192.168.* option auth.ip.brick2.allow 10.10.*,10.11.*,10.15.*,192.168.* option auth.ip.brick-ns.allow 10.10.*,10.11.*,10.15.*,192.168.* end-volume ====Client volume: volume 10.10.123.21-brick1 type protocol/client option transport-type tcp/client option remote-host 10.10.123.21 option remote-port 6986 option transport-timeout 3 option remote-subvolume brick1 end-volume volume 10.10.123.21-brick2 type protocol/client option transport-type tcp/client option remote-host 10.10.123.21 option remote-port 6986 option transport-timeout 3 option remote-subvolume brick2 end-volume ... volume dht0-raw type cluster/distribute #subvolumes 10.10.123.21-brick1 10.10.123.21-brick2 10.10.123.22-brick1 10.10.123.22-brick2 subvolumes 10.10.123.21-brick1 10.10.123.21-brick2 10.10.123.22-brick1 10.10.123.22-brick2 10.10.123.31-brick1 10.10.123.31-brick2 10.10.123.32-brick1 10.10.123.32-brick2 option lookup-unhashed yes end-volume
