I've just enabled profiling of the volume and this is the information
from the profile info printed:
[root@gfs1 ~]# gluster volume profile test info
Brick: 93.123.32.41:/data
-------------------------
Cumulative Stats:
%-latency Avg-latency Min-Latency Max-Latency No. of
calls Fop
--------- ----------- ----------- -----------
------------ ----
100.00 148.00 us 148.00 us 148.00 us 1 LOOKUP
Duration: 13950 seconds
Data Read: 0 bytes
Data Written: 0 bytes
Interval 4 Stats:
Duration: 7910 seconds
Data Read: 0 bytes
Data Written: 0 bytes
[root@gfs1 ~]#
Anything here that might be useful ?
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On 05/23/2013 01:10 PM, Явор Маринов wrote:
I've made a mistake we are using 30Mbit connectivity on all of the
nodes. Below is a iperf test between the node and the client
[root@gfs4 ~]# iperf -c 93.123.32.41
------------------------------------------------------------
Client connecting to 93.123.32.41, TCP port 5001
TCP window size: 23.2 KByte (default)
------------------------------------------------------------
[ 3] local 93.123.32.44 port 49838 connected with 93.123.32.41 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0-10.1 sec 49.9 MBytes 41.5 Mbits/sec
[root@gfs4 ~]#
But when trying to copy a 1Gb file on the client's mounted volume the
speed between the client and the node is ~500kb/s
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On 05/23/2013 12:16 PM, Nux! wrote:
On 23.05.2013 09:41, Явор Маринов wrote:
Thanks for your reply.
No matter how many nodes (currently the volume is only with its own
node) the speed is really slow. For testing purposes, i made a volume
with only one node, without any replication - however the speed is
still ~500kb/s. The cloud servers are limited to 30Gbit/s but still
the traffic when writing to the node is ~500kb/s
i'm using 3.3.1 glusterfsd with kernel 2.6.18-348.el5xen and i need
to know if the the problem is within the kernel.
I don't think it is a problem with gluster; I never used el5 for
this, but I doubt there's an inherent problem with it either. That
speed limit looks odd to me and I think it's somewhere in your setup.
Have you done any actual speed tests in the VMs?
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