[Gluster-users] Very poor performance - 2 Peers, 500KB = 14 Seconds

Michael Post michael_post at web.de
Fri Sep 27 20:24:30 UTC 2013


Hallo,

i looked at iotop.

One file will be written (Average Speed 250k/s). After the file is written nothing happens for 1 or 2 seconds. Then the next procedure for writing will be started.
The cpu is idle and very bored.

Does any one has any clue for me?

Hopeful greetings,

Michael 



Am 27.09.2013 um 21:17 schrieb Michael Post <michael_post at web.de>:

> Hello together,
> 
> i installed gluster (Version glusterfs 3.4.0qa2) on an opensuse 12.3 environment. Based on an ext4 filesystem i created a two peer (geo replication) environment.
> 
> When i copy some files, the performance is very slow. 
> For 500KB the system need between 14 till 20 seconds.
> 
> This can not be normal, or?
> 
> A previous test, but on two debian wheezy systems all works fast and fine.
> 
> Where can i analyze and debug it?
> 
> Thanks for your help,
> 
> Michael
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