[Gluster-users] Speed of glusterfs

Marc Muehlfeld Marc.Muehlfeld at medizinische-genetik.de
Wed Dec 14 14:44:04 UTC 2011

Am 14.12.2011 14:54, schrieb Marc Muehlfeld:
> Am 14.12.2011 14:00, schrieb Raphaël Hoareau:
>> You could also try to use two NICs with specific routes. NIC1 knows the
>> route to Server1 and NIC2 knows the route to Server2.
> Could it be possible that this can't be done or do I miss something?

(For my speed test results see the end of this mail)

I saw what was wrong: When I

# gluster peer probe ...

from one node to the other, then glusterfs automatically allows it's own IP 
from *the same subnet*.

If I probe both server from a client and then it works:

# gluster peer probe
Probe successful

# gluster peer probe
Probe successful

# gluster volume create test replica 2 transport tcp
Creation of volume test has been successful. ...

Netstat also shows that the client is connected to both nodes with each on a 
own IP in a separare subnet (and NIC):

# netstat -taunp | grep glusterfs
tcp        0      0  
VERBUNDEN   23488/glusterfs
tcp        0      0  
VERBUNDEN   23310/glusterfs

Here are the results:

Im writing a 10 GB file to the cluster:

time dd if=/dev/zero of=/mnt/test.10G bs=1M count=10000
10000+0 Datensätze ein
10000+0 Datensätze aus
10485760000 Bytes (10 GB) kopiert, 106,981 s, 98,0 MB/s

real    1m47.018s
user    0m0.010s
sys     0m5.801s

This is a good result for me on a 1GBit connection.

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