[Gluster-devel] AFR + Unify problem

[Anand Avati]

Do you have xattr support in the backend? what version of glusterfs are you
using?

avati

On 28/05/2008, Ben Mok <benmok at powerallnetworks.com> wrote:
>
> Hi !
>
>
>
> I wanna build one large storage pool with redundancy, in my test
> environment, it consist of two controllers and four storage nodes.
>
>
>
> Controller 1 and Controller2
>
> Storage nodes 501 502 503 504
>
> Afr1 501 502
>
> Afr2 503 504
>
> Unify Afr1 and Afr2
>
>
>
> But i got some problem when I did failover testing.
>
>
>
> Case1:
>
> Create file1 from controller1 > file1 locate in 501 502 > down 501 > modify
> file1 > up 501
>
> both controllers also read old data of file1, even run self-heal script and
> the content of file1 have ^@^@^@^@^@^@^@ at the bottom
>
>
>
> Case2:
>
> File2 locate in 503 504 > down 503 > delete file2 > file2 locate in 501 502
> > up 503
>
> One controller can read new data of file2 and one read old data of file2 ,
> and old file2 still locate in 503 even run self-heal script already
>
>
>
> Would you tell me how to solve above issue? Or any wrong setting for my
> configuration?
>
> I afr all namespace for all of storage nodes, is it possible? Because I
> read
> many doc from yours also have not afr the namespace or just afr two
> namespace only.
>
>
>
> Thank you so much !
>
>
>
> Ben
>
>
>
> -------------
>
> Server side
>
> -------------
>
> volume storage-ds
>
>            type storage/posix
>
>            option directory /mnt/gluster/storage
>
>    end-volume
>
>
>
>    volume storage-ns
>
>            type storage/posix
>
>            option directory /mnt/gluster/storage-ns
>
>    end-volume
>
>
>
>    volume server
>
>      type protocol/server
>
>      option transport-type tcp/server
>
>      subvolumes storage-ds
>
>      option auth.ip.storage-ds.allow 192.168.10.*,127.0.0.1
>
>      option auth.ip.storage-ns.allow 192.168.10.*,127.0.0.1
>
>    end-volume
>
>
>
> ------------
>
> Client side
>
> ------------
>
>    Volume 501
>
>      type protocol/client
>
>      option transport-type tcp/client
>
>      option remote-host 192.168.10.81
>
>      option transport-timeout 30
>
>      option remote-subvolume storage-ds
>
>    end-volume
>
>
>
>    volume 501-ns
>
>      type protocol/client
>
>      option transport-type tcp/client
>
>      option remote-host 192.168.10.81
>
>      option transport-timeout 30
>
>      option remote-subvolume storage-ns
>
>    end-volume
>
>
>
>    volume 502
>
>      type protocol/client
>
>      option transport-type tcp/client
>
>      option remote-host 192.168.10.82
>
>      option transport-timeout 30
>
>      option remote-subvolume storage-ds
>
>    end-volume
>
>
>
>    volume 502-ns
>
>      type protocol/client
>
>      option transport-type tcp/client
>
>      option remote-host 192.168.10.82
>
>      option transport-timeout 30
>
>      option remote-subvolume storage-ns
>
>    end-volume
>
>
>
> volume 503
>
>      type protocol/client
>
>      option transport-type tcp/client
>
>      option remote-host 192.168.10.83
>
>      option transport-timeout 30
>
>      option remote-subvolume storage-ds
>
>    end-volume
>
>
>
>    volume 503-ns
>
>      type protocol/client
>
>      option transport-type tcp/client
>
>      option remote-host 192.168.10.83
>
>      option transport-timeout 30
>
>      option remote-subvolume storage-ns
>
>    end-volume
>
>
>
>    volume 504
>
>      type protocol/client
>
>      option transport-type tcp/client
>
>      option remote-host 192.168.10.84
>
>      option transport-timeout 30
>
>      option remote-subvolume storage-ds
>
>    end-volume
>
>
>
>    volume 504-ns
>
>      type protocol/client
>
>      option transport-type tcp/client
>
>      option remote-host 192.168.10.84
>
>      option transport-timeout 30
>
>      option remote-subvolume storage-ns
>
>    end-volume
>
>
>
> ################################
>
> volume afr-ns
>
>         type cluster/afr
>
>         subvolumes 501-ns 502-ns 503-ns 504-ns
>
>    end-volume
>
>
>
> volume afr1
>
>         type cluster/afr
>
>         subvolumes 501 502
>
>    end-volume
>
>
>
> volume afr2
>
>         type cluster/afr
>
>         subvolumes 503 504
>
>    end-volume
>
>
>
> volume storage-unify
>
>            type cluster/unify
>
>            subvolumes afr1 afr2
>
>            option namespace afr-ns
>
>            option scheduler rr
>
>            option rr.limits.min-free-disk 5%
>
>    end-volume
>
>
>
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>



-- 
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As Dame Fortune did intend,
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The pot's at the other end.