[Gluster-users] GlusterFS Slow Performance In One Direction

[Jeffery Soo]

Does anyone have any ideas?
I also notice the performance on listing and other things is not like DRBD.
Is there something in my config files that I should change?

Thanks
Jeffery Soo wrote:
> Here's my setup. I have 2 servers with the exact hardware and OS 
> configuration.
> Each server is also a client.  I've tried to do a "DRBD" style setup 
> using GlusterFS.
>
> Let's say I have gluserfs mounted on /mnt/gluster
>
> On Remote 1's shell I issue this command:
>
> cp /mnt/gluster/test1000mbfile /mnt/gluster/test100mbfile--
>
> The transfer rate to Server 2 reaches about 30-40 MB/s.
>
> The problem is if I do this same thing on Server 2, the transfer rate 
> to Server 1 is only about 10-15 MB/s
> Does anyone have any idea what is causing the slow performance from 
> Server 2 to Server 1?
>
> Server 2 is capable of sending at 40MB/s to Server 1 in an SCP 
> transfer, so I've ruled out network or hardware issues.
>
> =====================================================
>
> Both servers have the same glusterfsd.vol and glusterfs.vol files:
>
> Client File:
>
> +------------------------------------------------------------------------------+ 
>
>  1: volume remote1
>  2:   type protocol/client
>  3:   option transport-type tcp
>  4:   option remote-host xx.xx.xx.xx
>  5:   option remote-subvolume brick
>  6: end-volume
>  7:
>  8: volume remote2
>  9:   type protocol/client
> 10:   option transport-type tcp
> 11:   option remote-host xx.xx.xx.xx
>  17:   option remote-subvolume brick
> 18: end-volume
> 19:
> 20: volume replicate
> 21:   type cluster/replicate
> 22:   subvolumes remote1 remote2
> 23: end-volume
> 24:
> 25: volume writebehind
> 26:   type performance/write-behind
> 27:   option window-size 1MB
> 28:   subvolumes replicate
> 29: end-volume
> 30:
> 31: volume cache
> 32:   type performance/io-cache
> 33:   option cache-size 512MB
> 34:   subvolumes writebehind
> 35: end-volume
>
> Server
> =================
>  1: volume posix
>  2:   type storage/posix
>  3:   option directory /data/export
>  4: end-volume
>  5:
>  6: volume locks
>  7:   type features/locks
>  8:   subvolumes posix
>  9: end-volume
> 10:
> 11: volume brick
> 12:   type performance/io-threads
> 13:   option thread-count 8
> 14:   subvolumes locks
> 15: end-volume
> 16:
> 17: volume server
> 18:   type protocol/server
> 19:   option transport-type tcp
> 20:   option auth.addr.brick.allow *
> 21:   subvolumes brick
> 22: end-volume
>
>
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