[ewg] SDP problem

Yury Serdyuk Yury at serdyuk.botik.ru
Sun Apr 11 06:25:49 PDT 2010


Hi !

I have a small cluster with 2 nodes connected by Infiniband interconnect.
In fact, the nodes have the following IP-addresses:

> -bash-3.2$ /sbin/ifconfig
> eth0      Link encap:Ethernet  HWaddr 00:30:48:CB:9D:EA
>           inet addr:83.149.223.243  Bcast:83.149.223.255  
> Mask:255.255.248.0        
>
> ib0       Link encap:InfiniBand  HWaddr 
> 80:00:00:48:FE:80:00:00:00:00:00:00:00:00:00:00:00:00:00:00
>           inet addr:10.63.223.243  Bcast:10.63.255.255  Mask:255.255.0.0

and

> -bash-3.2$ /sbin/ifconfig
> eth0      Link encap:Ethernet  HWaddr 00:30:48:CB:9E:48
>           inet addr:83.149.223.244  Bcast:83.149.223.255  
> Mask:255.255.248.0       
>
> ib0       Link encap:InfiniBand  HWaddr 
> 80:00:00:48:FE:80:00:00:00:00:00:00:00:00:00:00:00:00:00:00
>           inet addr:10.63.223.244  Bcast:10.63.255.255  Mask:255.255.0.0

Further, I have the following libsdp.conf file:

> use tcp connect * 10.63.223.243/244:22
> use sdp connect * 10.63.223.243/244:*
> use sdp listen * 10.63.223.243/244:*
> use tcp server * *:*
> use tcp client * *:*

In fact, SDP works good when programs are running on any of the 
10.63.223.243/244 nodes.

The problem is the following:

when I am trying to do ssh from the frontend of the cluster to one of 
the working nodes,
I have got

> -bash-3.2$ ssh 10.63.223.243
> socket: Address family not supported by protocol
> ssh: connect to host 10.63.223.243 port 22: Address family not 
> supported by protocol

 From the other side, ping to the node is performed well:

> -bash-3.2$ ping 10.63.223.243
> PING 10.63.223.243 (10.63.223.243) 56(84) bytes of data.
> 64 bytes from 10.63.223.243: icmp_seq=1 ttl=64 time=0.594 ms
> 64 bytes from 10.63.223.243: icmp_seq=2 ttl=64 time=0.040 ms
> 64 bytes from 10.63.223.243: icmp_seq=3 ttl=64 time=0.041 ms

So, how to configure libsdp.conf file that admit a right login by ssh ?

Thanks.

Yury.



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