Re: AFR replication

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Gerry Reno wrote:
But, in my case that would imply that only the :1 definition would be in effect, yet I'm seeing :2 replication so it doesn't appear to just be using the last definition. I'm going to try putting these all on one line and see what happens.

Gerry
Ok, I'm using patch 341 and I tried this on two setups all on one line and still seeing same behavior. I must have something wrong in my configs. Please take a look at the session and configs:

==============================================
On 192.168.1.200 machine (server and client0):
==============================================
[root@grp-01-30-50 glusterfs]# find /var/brick-appl/
/var/brick-appl/
/var/brick-appl/dir1
/var/brick-appl/dir1/logs
[root@grp-01-30-50 glusterfs]# find /var/appl
/var/appl
/var/appl/dir1
/var/appl/dir1/logs
[root@grp-01-30-50 glusterfs]# touch /var/appl/file1
[root@grp-01-30-50 glusterfs]# find /var/brick-appl/
/var/brick-appl/
/var/brick-appl/file1
/var/brick-appl/dir1
/var/brick-appl/dir1/logs
[root@grp-01-30-50 glusterfs]# find /var/appl
/var/appl
/var/appl/dir1
/var/appl/dir1/logs
/var/appl/file1
[root@grp-01-30-50 glusterfs]# touch /var/appl/dir1/logs/appl.log
[root@grp-01-30-50 glusterfs]# find /var/brick-appl/
/var/brick-appl/
/var/brick-appl/file1
/var/brick-appl/dir1
/var/brick-appl/dir1/logs
/var/brick-appl/dir1/logs/appl.log
[root@grp-01-30-50 glusterfs]# find /var/appl
/var/appl
/var/appl/dir1
/var/appl/dir1/logs
/var/appl/dir1/logs/appl.log
/var/appl/file1
[root@grp-01-30-50 glusterfs]# mount | grep gluster -e gluster -e ext3
/dev/mapper/VolGroup00-LogVol00 on / type ext3 (rw)
/dev/sda1 on /boot type ext3 (rw)
glusterfs on /var/appl type fuse (rw,nosuid,nodev,allow_other,default_permissions,max_read=1048576)
[root@grp-01-30-50 glusterfs]#
==============================================
configs:
### file: glusterfs-server.vol

### Export volume "brick" with the contents of 'option directory'.
volume brick
 type storage/posix                    # POSIX FS translator
 option directory /var/brick-appl      # 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
 subvolumes brick
 option auth.ip.brick.allow *          # Allow access to "brick" volume
end-volume
==============================================
### file: glusterfs-client.vol

### Add client feature and attach to remote subvolume
volume client0
 type protocol/client
 option transport-type tcp/client     # for TCP/IP transport
 option remote-host 192.168.1.200     # 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
volume client1
 type protocol/client
 option transport-type tcp/client     # for TCP/IP transport
 option remote-host 192.168.1.201     # IP address of the remote brick
 option remote-subvolume brick        # name of the remote volume
end-volume

### Add readahead feature
#volume readahead
#  type performance/read-ahead
#  option page-size 65536     # unit in bytes
#  option page-count 16       # cache per file  = (page-count x page-size)
#  subvolumes client
#end-volume

### Add IO-Cache feature
#volume iocache
#  type performance/io-cache
#  option page-size 128KB
#  option page-count 128
#  subvolumes readahead
#end-volume

### Add writeback feature
#volume writeback
#  type performance/write-behind
#  option aggregate-size 131072 # unit in bytes
# subvolumes iocache #end-volume

  ### Add automatic file replication (AFR) feature
volume afr
 type  cluster/afr
 subvolumes  client0 client1
 option  replicate /var/appl/dir1/logs/*:1,/var/appl/*:2
 option debug on
end-volume
==============================================




==============================================
On 192.168.1.201 machine (server and client1):
==============================================
[root@grp-01-30-51 glusterfs]# find /var/brick-appl/
/var/brick-appl/
/var/brick-appl/dir1
/var/brick-appl/dir1/logs
[root@grp-01-30-51 glusterfs]# find /var/appl
/var/appl
/var/appl/dir1
/var/appl/dir1/logs
[root@grp-01-30-51 glusterfs]# # after file1 touch on 192.168.1.200 client
[root@grp-01-30-51 glusterfs]# find /var/brick-appl/
/var/brick-appl/ <---------------------------------------------- ??????????? nothing replicated to this brick
/var/brick-appl/dir1
/var/brick-appl/dir1/logs
[root@grp-01-30-51 glusterfs]# find /var/appl
/var/appl
/var/appl/dir1
/var/appl/dir1/logs
/var/appl/file1 <------------------------------------------------------------------------ [root@grp-01-30-51 glusterfs]# # after dir1/logs/appl.log touch on 192.168.1.200 client
[root@grp-01-30-51 glusterfs]# find /var/brick-appl/
/var/brick-appl/
/var/brick-appl/dir1
/var/brick-appl/dir1/logs
[root@grp-01-30-51 glusterfs]# find /var/appl
/var/appl
/var/appl/dir1
/var/appl/dir1/logs
/var/appl/dir1/logs/appl.log <--------------------------------------------- ?????????? replicated, but should not have
/var/appl/file1
[root@grp-01-30-51 glusterfs]# mount | grep -e gluster -e ext3
/dev/mapper/VolGroup00-LogVol00 on / type ext3 (rw)
/dev/sda1 on /boot type ext3 (rw)
glusterfs on /var/appl type fuse (rw,nosuid,nodev,allow_other,default_permissions,max_read=1048576)
[root@grp-01-30-51 glusterfs]#
==============================================
configs:
### file: glusterfs-server.vol

### Export volume "brick" with the contents of 'option directory'.
volume brick
 type storage/posix                    # POSIX FS translator
 option directory /var/brick-appl      # 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
 subvolumes brick
 option auth.ip.brick.allow *          # Allow access to "brick" volume
end-volume
==============================================
glusterfs-client.vol:
### file: glusterfs-client.vol

### Add client feature and attach to remote subvolume
volume client0
 type protocol/client
 option transport-type tcp/client     # for TCP/IP transport
 option remote-host 192.168.1.200     # 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
volume client1
 type protocol/client
 option transport-type tcp/client     # for TCP/IP transport
 option remote-host 192.168.1.201     # IP address of the remote brick
 option remote-subvolume brick        # name of the remote volume
end-volume

### Add readahead feature
#volume readahead
#  type performance/read-ahead
#  option page-size 65536     # unit in bytes
#  option page-count 16       # cache per file  = (page-count x page-size)
#  subvolumes client
#end-volume

### Add IO-Cache feature
#volume iocache
#  type performance/io-cache
#  option page-size 128KB
#  option page-count 128
#  subvolumes readahead
#end-volume

### Add writeback feature
#volume writeback
#  type performance/write-behind
#  option aggregate-size 131072 # unit in bytes
# subvolumes iocache #end-volume

  ### Add automatic file replication (AFR) feature
volume afr
 type  cluster/afr
 subvolumes  client0 client1
 option  replicate /var/appl/dir1/logs/*:1,/var/appl/*:2
 option debug on
end-volume
==============================================

start script:  (both machines)
glusterfsd --pidfile /usr/local/var/run/glusterfsd0.pid --spec-file /usr/local/etc/glusterfs/glusterfs-server.vol glusterfs -l /var/log/glusterfs.log --spec-file /usr/local/etc/glusterfs/glusterfs-client.vol /var/appl/






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