[Gluster-users] Why so bad performance?

[RedShift]

Hello Kirby,


Please check if every involved device is running at gigabit speed and test with at least 100 mb of data.


Glenn

Kirby Zhou wrote:
> I conustructed a 2-server/ 1 client gluster with Gigabit-ethernet, but got
> so bad a benchmark.
> Is there any thing can I tune?
> 
> [@65.64 ~]# for ((i=0;i<17;++i)) ; do dd if=/dev/zero of=/mnt/yyy$i bs=4M
> count=2 ; done
> 2+0 records in
> 2+0 records out
> 8388608 bytes (8.4 MB) copied, 0.770213 seconds, 10.9 MB/s
> 2+0 records in
> 2+0 records out
> 8388608 bytes (8.4 MB) copied, 0.771131 seconds, 10.9 MB/s
> ...
> 
> [@123.21 glusterfs]# cat glusterfs-server.vol 
> volume brick1
>  type storage/posix 
>  option directory /exports/disk1
> end-volume
> 
> volume brick2
>  type storage/posix 
>  option directory /exports/disk2
> end-volume
> 
> volume brick-ns
>  type storage/posix
>  option directory /exports/ns
> end-volume
> 
> ### Add network serving capability to above brick.
> volume server
>  type protocol/server
>  option transport-type tcp/server     # For TCP/IP transport
>  subvolumes brick1 brick2 brick-ns
>  option auth.ip.brick1.allow 10.10.* # Allow access to "brick" volume
>  option auth.ip.brick2.allow 10.10.* # Allow access to "brick" volume
>  option auth.ip.brick-ns.allow 10.10.* # Allow access to "brick-ns" volume
> end-volume
> 
> [@123.21 glusterfs]# cat glusterfs-client.vol 
> volume remote-brick1_1
>   type protocol/client
>   option transport-type tcp/client
>   option remote-host 10.10.123.21
>   option remote-subvolume brick1
> end-volume
> 
> volume remote-brick1_2
>   type protocol/client
>   option transport-type tcp/client
>   option remote-host 10.10.123.21
>   option remote-subvolume brick2
> end-volume
> 
> volume remote-brick2_1
>   type protocol/client
>   option transport-type tcp/client
>   option remote-host 10.10.123.22
>   option remote-subvolume brick1
> end-volume
> 
> volume remote-brick2_2
>   type protocol/client
>   option transport-type tcp/client
>   option remote-host 10.10.123.22
>   option remote-subvolume brick2
> end-volume
> 
> volume brick-afr1_2
>   type cluster/afr
>   subvolumes remote-brick1_1 remote-brick2_2
> end-volume
> 
> volume brick-afr2_1
>   type cluster/afr
>   subvolumes remote-brick1_2 remote-brick2_1
> end-volume
> 
> volume remote-ns1
>   type protocol/client
>   option transport-type tcp/client
>   option remote-host 10.10.123.21
>   option remote-subvolume brick-ns
> end-volume
> 
> volume remote-ns2
>   type protocol/client
>   option transport-type tcp/client
>   option remote-host 10.10.123.22
>   option remote-subvolume brick-ns
> end-volume
> 
> volume ns-afr0
>   type cluster/afr
>   subvolumes remote-ns1 remote-ns2
> end-volume
> 
> volume unify0
>   type cluster/unify
>   option scheduler alu
>   option alu.limits.min-free-disk 10%
>   option alu.order disk-usage
>   option namespace ns-afr0
>   subvolumes brick-afr1_2 brick-afr2_1
> end-volume
> 
> 
> 
> 
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