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.

=Install

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