[Lustre-discuss] New to lustre, client connection question

[Aaron Knister]

Did you change modprobe.conf before or after you loaded the lustre modules? IIRC you need to reload the lustre modules to pick up any lnet networks changes in the modprobe.conf file. I think there's a way to change it on the fly but I'm not sure how to do it.

To see which NIDS are currently configured on a given machine you can run an "lctl list_nids".

On Jan 13, 2010, at 10:30 AM, Eric Mauger wrote:

> Le 13/01/2010 14:30, Brian J. Murrell a écrit :
>> On Wed, 2010-01-13 at 11:19 +0100, Eric Mauger wrote:
>> 
>>> Hi,
>>> 
>> Hi,
>> 
>> 
>>> Each node has two nic. The first one (eth0) is used for administration
>>> purpose and the second (eth1)
>>> is used for lustre interconnection.
>>> 
>> 
>>> mount -t lustre 10.7.0.127 at tcp0:/lustre /mnt/lustre/
>>> 
>>> The lustre network is 10.7.0.0/24
>>> 
>>> On the MDS/MGT logs, I have :
>>> 
>>> mds kernel: LustreError: 120-3: Refusing connection from 195.220.11.120
>>> for 195.220.11.127 at tcp: No matching NI
>>> 
>>> The address 195.220.11.120 is on eth0 and I really don't understand why
>>> the connection seems to come from
>>> this network instead of 10.7.0.0
>>> 
>> You need to review the section in the manual about LNET networking and
>> specifically how to bind NIDs to specific interfaces.  You are getting
>> the default behaviour but given your description above, that's not what
>> you want.  You need to explicitly configure your bindings to reflect
>> your "non-default" configuration.
>> 
>> b.
>> 
> Brian,
> 
> I forgot to tell that I've added this line in modprobe.conf of all 
> machines :
> 
> options lnet networks=tcp0(eth1)
> 
> I haven't seen anything else to bind NIDs to eth1.
> 
> Eric
>> 
>> 
>> 
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>> 
> 
> 
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