[Lustre-discuss] lnet rounter immediatelly marked as down
Michael Kluge
Michael.Kluge at tu-dresden.de
Fri Dec 3 09:48:30 PST 2010
Hi Liang,
sure, but my current question is: Why are the nodes within o2ib
considering the router as down?
I add the route to a node within o2ib and instantly afterwards lctl
show_route say the router is down. That does not make much sense to me.
And if I try to send a message through the router from this node I see
that it can't send the message beause all routers are down.
Regards, Michael
Am 03.12.2010 16:29, schrieb liang Zhen:
> Hi Michael,
>
> To add router dynamically, you also have to run "--net o2ib add_route
> a.b.c.d at tcp1" on all nodes of tcp1, so the better choice is using
> universal modprobe.conf by define "ip2nets" and "routes", you can see
> some example at here:
> http://wiki.lustre.org/manual/LustreManual18_HTML/MoreComplicatedConfigurations.html
>
> Regards
> Liang
>
> On 12/3/10 9:32 PM, Michael Kluge wrote:
>> Hi list,
>>
>> we have a Lustr 1.6.7.2 running on our (IB SDR) cluster and have added
>> one additional NIC (tcp1) to one node and like to use this node as
>> router. I have added a ip2nets statement and forwaring=enabled to the
>> modprobe files on the router and reloaded the modules. I see two NIDS
>> now and no trouble.
>>
>> The MDS server that need to go through the router to a hand full of
>> additional clients is in production and I can't take it down. So I added
>> the route to the additional network via lctl --net tcp1 add_route
>> W.X.Y.Z at o2ib where W.X.Y.Z is the ipoib address of the router. When I do
>> an lctl show_routes, this router is marked as "down". Is there a way to
>> bring it to life? I can lctl ping the router node from the MDS but can't
>> reload lnet to enable active router tests. Right now on the MDS the only
>> option for the lnet module is the network config for the IB network
>> interface.
>>
>> Any ideas who to enable this router?
>>
>>
>> Regards, Michael
>>
>>
>>
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>
>
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