1. Environment
I used 4 Xen virtual images running ubuntu 8.04.
Two will run a tracker and the database, the other two will be the storage nodes.
Lets say the IP addresses will be:
192.168.0.195
192.168.0.196
192.168.0.197
192.168.0.198
2. Initial Setup
Install iptables:
apt-get install iptables
then apply initial setup
iptables -A INPUT -i lo -j ACCEPT
iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
iptables -A INPUT -p tcp --dport ssh -j ACCEPT
iptables -A INPUT -j DROP
iptables-save -c > /etc/iptables.rules
you can save the rule for beyond machine reboot by adding the two lines below to /etc/network/interfaces
pre-up iptables-restore < /etc/iptables.rules
post-down iptables-save -c > /etc/iptables.rules
install mysql and wget and perldoc
apt-get install mysql-server
apt-get install wget
apt-get install perl-doc
apt-get install libio-aio-perl
apt-get install subversion
apt-get install build-essential
3. Common steps for installing MogileFS
retrieve the code (ripped of the how to wiki):
cd /usr/local/src
mkdir mogilefs-src
cd mogilefs-src
svn checkout http://code.sixapart.com/svn/mogilefs/trunk
install perl dependencies
cpan Danga::Socket
cpan Gearman::Client
cpan Gearman::Server
cpan Gearman::Client::Async
cpan Net::Netmask
cpan Perlbal
cpan IO::WrapTie
install the servers:
cd mogilefs-src/trunk/server
perl Makefile.PL
make
make test
make install
At the moment the test seems to need mysql to be installed and user root without password, so some tests are skipped
you will need to install MogileFS::Client
(the tests expect a tracker to run locally on port 7001)
cd mogilefs-src/trunk/api/perl/MogileFS-Client
perl Makefile.PL
make
make test
make install
and some admin tools:
cd mogilefs-src/trunk/utils
perl Makefile.PL
make
make test
make install
4. Tracker install
create the database:
mysql -uroot -p
mysql> CREATE DATABASE mogilefs;
mysql> GRANT ALL ON mogilefs.* TO 'mogile'@'%';
mysql> SET PASSWORD FOR 'mogile'@'%' = OLD_PASSWORD( 'sekrit' );
mysql> FLUSH PRIVILEGES;
mysql> quit
Create the schema
./mogdbsetup --dbname=mogilefs --dbuser=mogile --dbpassword=sekrit
(admin privilege is required for the initial setup, so if you’re admin user is not root with no password, you will need to specify –dbroopassword and –dbrootuser)
create /etc/mogilefs/mogilefsd.conf:
db_dsn DBI:mysql:mogilefs
db_user mogile
db_pass ******
conf_port 7001
listener_jobs 5
create a mogile user:
adduser mogile
and starts the tracker under that user:
su - mogile
mogilefsd
open a port for the tracker
iptables -A INPUT -p tcp --dport 7001 -j ACCEPT
5. Storage node
On the storage server, create a configuration file at /etc/mogilefs/mogstored.conf with the following:
httplisten=0.0.0.0:7500
mgmtlisten=0.0.0.0:7501
docroot=/var/mogdata
open a port:
iptables -A INPUT -p tcp --dport 7500 -j ACCEPT
iptables -A INPUT -p tcp --dport 7501 -j ACCEPT
register a new storage node:
mogadm --lib=/usr/local/share/perl/5.8.8 --trackers=192.168.0.195:7001 host add mogilestorage --ip=192.168.0.197 --port=7500 --status=alive
it should now appears in the list:
mogadm --lib=/usr/local/share/perl/5.8.8 --trackers=192.168.0.195:7001 host list
Add a device to the storage:
mogadm --lib=/usr/local/share/perl/5.8.8 --trackers=192.168.0.195:7001 device add mogilestorage 1
and create the directory:
mkdir -p /var/mogdata/dev1
make sure /var/mogdata/* is owned by mogile:mogile
chown -R mogile:mogile /var/mogdata/*
6. Starting the storage server
as root:
mogstored --daemon
7. Starting the tracker
su - mogile
mogilefsd -c /etc/mogilefs/mogilefsd.conf --daemon
exit
8. Testing
check that mogilefs components are online:
mogadm --lib=/usr/local/share/perl/5.8.8 --trackers=192.168.0.195:7001 check
Quick sanity check of the storage daemon:
~/Projects/mogilefs $ telnet 192.168.0.197 7500
Trying 192.168.0.197...
Connected to 192.168.0.197.
Escape character is '^]'.
PUT /dev1/test HTTP/1.0
Content-length: 4
\n
test
HTTP/1.0 200 OK
Content-Type: text/html
Content-Length: 18
Server: Perlbal
Connection: close
200 - OK
Connection closed by foreign host.
create a domain
mogadm --lib=/usr/local/share/perl/5.8.8 --trackers=192.168.0.195:7001 domain add mydomain
and a class
mogadm --lib=/usr/local/share/perl/5.8.8 --trackers=192.168.0.195:7001 class add mydomain images
Quick sanity check of the tracker:
root@bbc-01:~# mogtool --trackers=127.0.0.1:7001 --domain=mydomain --class=images inject osname osname
on the store node, check /var/mogdata/dev1/0/000/000 for a file named xxxxxxxxxx.fid .
If the file exists it’s all good.
9. setting up the second pair
Replay instructions 1 to 8, then:
when you’ve got the second storage set up, you will need to register the second storage and its device to all trackers:
mkdir -p /var/mogdata/dev2
mogadm --lib=/usr/local/share/perl/5.8.8 --trackers=192.168.0.195:7001 host add mogilestorage2 --ip=192.168.0.198 --port=7500 --status=alive
mogadm --lib=/usr/local/share/perl/5.8.8 --trackers=192.168.0.195:7001 device add mogilestorage2 2
mogadm --lib=/usr/local/share/perl/5.8.8 --trackers=192.168.0.196:7001 host add mogilestorage2 --ip=192.168.0.198 --port=7500 --status=alive
mogadm --lib=/usr/local/share/perl/5.8.8 --trackers=192.168.0.196:7001 device add mogilestorage2 2
you will also need to register the first storage and its device to the second tracker:
mogadm --lib=/usr/local/share/perl/5.8.8 --trackers=192.168.0.196:7001 host add mogilestorage --ip=192.168.0.197 --port=7500 --status=alive
mogadm --lib=/usr/local/share/perl/5.8.8 --trackers=192.168.0.196:7001 device add mogilestorage 1
sanity check the installation:
mogadm --lib=/usr/local/share/perl/5.8.8 --trackers=192.168.0.195:7001,192.168.0.196:7001 check
Checking trackers…
192.168.0.195:7001 … OK
192.168.0.196:7001 … OK
Checking hosts…
[ 1] mogilestorage2 … OK
[ 2] mogilestorage … OK
Checking devices…
host device size(G) used(G) free(G) use% ob state I/O%
—- ———— ———- ———- ———- —— ———- —–
[ 1] dev2 9.921 0.757 9.164 7.63% writeable 0.0
[ 2] dev1 9.921 0.600 9.321 6.05% writeable 0.0
—- ———— ———- ———- ———- ——
total: 19.842 1.357 18.485 6.84%
And voila.