Glusterfs kasutamine Gentooga

probleem

1. On olemas veebiserver mis peaks olema töökorras 99% ajast. Et välistada erinevaid softi-raua vigu peaks hoidma üleval kahte.

2. Ühest veebiserverist jääb väheks klientide teenindamisel. Oleks vaja koormust jaotada. Samas veebiserveri sisu muutub pidevalt ja vaja on erinevate serverite infot hoida sünkroonis.

On olemas kaks veebiserverit.

Esimese ip 192.168.1.10 Teise ip 192.168.1.11

Installime mõlemale serverile glusterfs'i

saab seda aadressilt http://ftp.zresearch.com/pub/gluster/glusterfs/

tar -xf glusterfs-1.3.0.tar.gz
./configure --prefix=/usr --disable-ibverbs
make
make install

Mõlemale serverile loome kaks faili. glusterfs.vol mis sisaldab serveri konfiguratsiooni

ja glusterfs_client.col glusterfs kliendi seadistustega

Mõlemad failid on kummagil serveril täpselt sama sisuga.

Serveritele tuleb luua ka kaust /home/export kus hoitakse reaalselt faile ja /mnt/gluster kuhu fuse abil ühendatakse glusterfs

/etc/glusterfs.vol

### Export volume "brick" with the contents of "/home/export" directory.
volume brick
 type storage/posix                   # POSIX FS translator
 option directory /home/export        # Export this directory
end-volume

### Add network serving capability to above brick.
volume server
 type protocol/server
 subvolumes brick brick-afr
 option transport-type tcp/server     # For TCP/IP transport
 option auth.ip.brick.allow *         # access to "brick" volume
 option auth.ip.brick-afr.allow *     # access to "brick" volume
end-volume

/etc/glusterfs_client.vol

### Add client feature and attach to remote subvolume of server1
volume brick1
 type protocol/client
 option transport-type tcp/client     # for TCP/IP transport
 option remote-host 192.168.1.10      # IP address of the remote brick
 option remote-subvolume brick        # name of the remote volume
end-volume

### Add client feature and attach to remote subvolume of brick2
volume brick2
 type protocol/client
 option transport-type tcp/client     # for TCP/IP transport
 option remote-host 192.168.1.11      # IP address of the remote brick
 option remote-subvolume brick        # name of the remote volume
end-volume
 
### Add AFR feature to brick1
volume afr
 type cluster/afr
 subvolumes brick1 brick2
 option replicate *:2
end-volume

Ja lisame masinatel faili

/etc/conf.d/local.start

read nii glusterfs deemoni startimiseks kui kliendiga mountimiseks

#!/bin/bash
# /etc/conf.d/local.start
 
glusterfsd -f /etc/glusterfs.vol
glusterfs -f /etc/glusterfs_client.vol -l /var/log/glusterfs.log  -L ERROR /mnt/gluster