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72.4. Moose File System

http://www.moosefs.org/

72.4.1. Master server installation

groupadd mfs
useradd -g mfs mfs
cd /usr/local/src
wget http://pro.hit.gemius.pl/hitredir/id=nXCV9nrckU2Et.zoR5kxdXZJLQq1fqbG4AIiq5K95Gz.07/url=moosefs.org/tl_files/mfscode/mfs-1.6.19.tar.gz
tar zxvf mfs-1.6.19.tar.gz
cd mfs-1.6.19
./configure --prefix=/srv/mfs \
--with-default-user=mfs \
--with-default-group=mfs \
--disable-mfschunkserver \
--disable-mfsmount

make
make install
		
cd /srv/mfs/etc/
cp /srv/mfs/var/mfs/metadata.mfs.empty /srv/mfs/var/mfs/metadata.mfs

cp mfsexports.cfg.dist mfsexports.cfg
cp mfsmaster.cfg.dist mfsmaster.cfg
cp mfsmetalogger.cfg.dist mfsmetalogger.cfg
vim mfsmaster.cfg	
		
WORKING_USER = mfs
WORKING_GROUP = mfs
SYSLOG_IDENT = mfsmaster
LOCK_MEMORY = 0
NICE_LEVEL = -19

EXPORTS_FILENAME = /srv/mfs/etc/mfsexports.cfg

DATA_PATH = /srv/mfs/var/mfs

BACK_LOGS = 50

REPLICATIONS_DELAY_INIT = 300
REPLICATIONS_DELAY_DISCONNECT = 3600

MATOML_LISTEN_HOST = *
MATOML_LISTEN_PORT = 9419

MATOCS_LISTEN_HOST = *
MATOCS_LISTEN_PORT = 9420

MATOCU_LISTEN_HOST = *
MATOCU_LISTEN_PORT = 9421

CHUNKS_LOOP_TIME = 300
CHUNKS_DEL_LIMIT = 100
CHUNKS_WRITE_REP_LIMIT = 1
CHUNKS_READ_REP_LIMIT = 5

REJECT_OLD_CLIENTS = 0

# deprecated, to be removed in MooseFS 1.7
# LOCK_FILE = /srv/mfs/var/run/mfs/mfsmaster.lock
		
		
		
echo "192.168.3.10        mfsmaster" >> /etc/hosts
				
		
		
# /srv/mfs/sbin/mfsmaster start
working directory: /srv/mfs/var/mfs
lockfile created and locked
initializing mfsmaster modules ...
loading sessions ... ok
sessions file has been loaded
exports file has been loaded
loading metadata ...
create new empty filesystemmetadata file has been loaded
no charts data file - initializing empty charts
master <-> metaloggers module: listen on *:9419
master <-> chunkservers module: listen on *:9420
main master server module: listen on *:9421
mfsmaster daemon initialized properly
			
		
# /srv/mfs/sbin/mfscgiserv
starting simple cgi server (host: any , port: 9425 , rootpath: /srv/mfs/share/mfscgi)		
		

http://192.168.3.10:9425/

72.4.2. Backup server (metalogger) installation

groupadd mfs
useradd -g mfs mfs
cd /usr/local/src
wget http://pro.hit.gemius.pl/hitredir/id=nXCV9nrckU2Et.zoR5kxdXZJLQq1fqbG4AIiq5K95Gz.07/url=moosefs.org/tl_files/mfscode/mfs-1.6.19.tar.gz
tar zxvf mfs-1.6.19.tar.gz
cd mfs-1.6.19
./configure --prefix=/srv/mfs \
--with-default-user=mfs \
--with-default-group=mfs \
--disable-mfschunkserver \
--disable-mfsmount

make
make install

cd /srv/mfs/etc/
cp mfsmetalogger.cfg.dist mfsmetalogger.cfg
vim mfsmetalogger.cfg
		
WORKING_USER = mfs
WORKING_GROUP = mfs
SYSLOG_IDENT = mfsmetalogger
LOCK_MEMORY = 0
NICE_LEVEL = -19

DATA_PATH = /srv/mfs/var/mfs

BACK_LOGS = 50
META_DOWNLOAD_FREQ = 24

MASTER_RECONNECTION_DELAY = 5

MASTER_HOST = mfsmaster
MASTER_PORT = 9419

MASTER_TIMEOUT = 60

# deprecated, to be removed in MooseFS 1.7
# LOCK_FILE = /srv/mfs/var/run/mfs/mfsmetalogger.lock
		
		
echo "192.168.3.10        mfsmaster" >> /etc/hosts
				
		
# /srv/mfs/sbin/mfsmetalogger start
working directory: /srv/mfs/var/mfs
lockfile created and locked
initializing mfsmetalogger modules ...
mfsmetalogger daemon initialized properly
		

72.4.3. Chunk servers installation

groupadd mfs
useradd -g mfs mfs
cd /usr/local/src
wget http://pro.hit.gemius.pl/hitredir/id=nXCV9nrckU2Et.zoR5kxdXZJLQq1fqbG4AIiq5K95Gz.07/url=moosefs.org/tl_files/mfscode/mfs-1.6.19.tar.gz
tar zxvf mfs-1.6.19.tar.gz
cd mfs-1.6.19

./configure --prefix=/srv/mfs \
--with-default-user=mfs \
--with-default-group=mfs \
--disable-mfsmaster \
--disable-mfsmount

make
make install

cd /srv/mfs/etc/
cp mfschunkserver.cfg.dist mfschunkserver.cfg
cp mfshdd.cfg.dist mfshdd.cfg
vim mfschunkserver.cfg		
		
WORKING_USER = mfs
WORKING_GROUP = mfs
SYSLOG_IDENT = mfschunkserver
LOCK_MEMORY = 0
NICE_LEVEL = -19

DATA_PATH = /srv/mfs/var/mfs

MASTER_RECONNECTION_DELAY = 5

BIND_HOST = *
MASTER_HOST = mfsmaster
MASTER_PORT = 9420

MASTER_TIMEOUT = 60

CSSERV_LISTEN_HOST = *
CSSERV_LISTEN_PORT = 9422
CSSERV_TIMEOUT = 5

HDD_CONF_FILENAME = /srv/mfs/etc/mfshdd.cfg
HDD_TEST_FREQ = 10

# deprecated, to be removed in MooseFS 1.7
# LOCK_FILE = /srv/mfs/var/run/mfs/mfschunkserver.lock
# BACK_LOGS = 50
		
		
cat >> /srv/mfs/etc/mfshdd.cfg <<EOF
/mnt/mfschunks
EOF

chown -R mfs:mfs /mnt/mfschunks
		
		
		
echo "192.168.3.10        mfsmaster" >> /etc/hosts
				
		
# /srv/mfs/sbin/mfschunkserver start
working directory: /srv/mfs/var/mfs
lockfile created and locked
initializing mfschunkserver modules ...
hdd space manager: scanning folder /mnt/mfschunks/ ...
hdd space manager: scanning complete
hdd space manager: /mnt/mfschunks/: 0 chunks found
hdd space manager: scanning complete
main server module: listen on *:9422
no charts data file - initializing empty charts
mfschunkserver daemon initialized properly		
		

http://192.168.3.10:9425/mfs.cgi?sections=CS

http://192.168.3.10:9425/mfs.cgi?sections=HD

72.4.4. Users’ computers installation

yum install fuse-devel

cd /usr/local/src
wget http://pro.hit.gemius.pl/hitredir/id=nXCV9nrckU2Et.zoR5kxdXZJLQq1fqbG4AIiq5K95Gz.07/url=moosefs.org/tl_files/mfscode/mfs-1.6.19.tar.gz
tar zxvf mfs-1.6.19.tar.gz
cd mfs-1.6.19
./configure --prefix=/srv/mfs \
 --with-default-user=mfs \
--with-default-group=mfs \
--disable-mfsmaster \
--disable-mfschunkserver

make
make install
		

mount

mkdir -p /mnt/mfs
modprobe fuse
/srv/mfs/bin/mfsmount /mnt/mfs -H 192.168.3.10
		
# df /mnt/mfs
Filesystem           1K-blocks      Used Available Use% Mounted on
mfs#192.168.3.10:9421
                       6085120         0   6085120   0% /mnt/mfs		
		

umount

umount /mnt/mfs
		

72.4.5. Testing MFS

mfs client

[root@dev4 ~]# mkdir -p /mnt/mfs/neo
[root@dev4 ~]# touch test /mnt/mfs/
[root@dev4 ~]# touch /mnt/mfs/neo/test
[root@dev4 ~]# touch /mnt/mfs/helloworld		
		

write testing

# time dd if=/dev/zero of=sometestfile bs=1024 count=100000
		

mfs chunk server

# ls /mnt/mfschunks/
00  07  0E  15  1C  23  2A  31  38  3F  46  4D  54  5B  62  69  70  77  7E  85  8C  93  9A  A1  A8  AF  B6  BD  C4  CB  D2  D9  E0  E7  EE  F5  FC
01  08  0F  16  1D  24  2B  32  39  40  47  4E  55  5C  63  6A  71  78  7F  86  8D  94  9B  A2  A9  B0  B7  BE  C5  CC  D3  DA  E1  E8  EF  F6  FD
02  09  10  17  1E  25  2C  33  3A  41  48  4F  56  5D  64  6B  72  79  80  87  8E  95  9C  A3  AA  B1  B8  BF  C6  CD  D4  DB  E2  E9  F0  F7  FE
03  0A  11  18  1F  26  2D  34  3B  42  49  50  57  5E  65  6C  73  7A  81  88  8F  96  9D  A4  AB  B2  B9  C0  C7  CE  D5  DC  E3  EA  F1  F8  FF
04  0B  12  19  20  27  2E  35  3C  43  4A  51  58  5F  66  6D  74  7B  82  89  90  97  9E  A5  AC  B3  BA  C1  C8  CF  D6  DD  E4  EB  F2  F9
05  0C  13  1A  21  28  2F  36  3D  44  4B  52  59  60  67  6E  75  7C  83  8A  91  98  9F  A6  AD  B4  BB  C2  C9  D0  D7  DE  E5  EC  F3  FA
06  0D  14  1B  22  29  30  37  3E  45  4C  53  5A  61  68  6F  76  7D  84  8B  92  99  A0  A7  AE  B5  BC  C3  CA  D1  D8  DF  E6  ED  F4  FB