[Lustre-discuss] lustre performance degrade on SuSE 11

[Tharindu Rukshan Bamunuarachchi]

I can SCP from/to client machine at 50 MB/s rate.
Interface is up at 1000Full.
No packet loss.


Just like to emphasize ... Client is SuSE 11 (1.8.1) and OSS/MDS are SuSE 10 (1.8.0)



suse11-202:~ # scp SLES-11-DVD-x86_64-GM-DVD1.iso 172.25.88.220:
Password:
SLES-11-DVD-x86_64-GM-DVD1.iso                100%  539MB  49.0MB/s   00:11


Kernel Interface table
Iface   MTU Met   RX-OK RX-ERR RX-DRP RX-OVR   TX-OK TX-ERR TX-DRP TX-OVR Flg
eth0   1500   0 1741587      0      0      0 2002121      0      0      0 BMRU


cheers,
__
tharindu

-----Original Message-----
From: Mag Gam [mailto:magawake at gmail.com]
Sent: Wednesday, August 12, 2009 4:40 PM
To: Tharindu Rukshan Bamunuarachchi
Cc: lustre-discuss at lists.lustre.org
Subject: Re: [Lustre-discuss] lustre performance degrade on SuSE 11

Is your network setup properly? Can you scp/ftp file to your OSS as a
test? Check if your network interfaces are properly connected
(autoneg, 1000Full). make sure you aren't getting any packet loss
(netstat -i). Also First then that and see how it goes.


On Wed, Aug 12, 2009 at 3:37 AM, Tharindu Rukshan
Bamunuarachchi<tharindub at millenniumit.com> wrote:
> hi All,
>
>
>
> I have following lustre installation.
>
>
>
> Node A : OSS (SuSE 10) – 1.8.0
>
> Node B : MDS (SuSE 10) – 1.8.0
>
>
>
> Node C: Client (SuSE 11) – 1.8.1
>
>
>
> When try to run “dd” command on lustre mount, it is only writing at 2.1 MB/s
>
> But If mount same file system on Node B, I can achive 45 MB/s performance.
>
>
>
> All nodes are connected to same 3560G cisco switch.
>
>
>
> I saw following error in MDS server message file. Is this related to
> performance of lustre file system ?
>
>
>
> LustreError: 3039:0:(socklnd_cb.c:2228:ksocknal_recv_hello()) Unknown
> protocol version (2.x expected) from 172.25.88.202
>
>
>
>
>
> cheers,
>
> __
>
> tharindu
>
>
>
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