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List:       lustre-discuss
Subject:    [Lustre-discuss] list_nids shows wrong IP address
From:       isaac () clusterfs ! com (Isaac Huang)
Date:       2007-08-21 8:25:57
Message-ID: 20070821142549.GA5917 () clusterfs ! com
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On Mon, Aug 20, 2007 at 08:23:09PM +0100, Wojciech Turek wrote:
> eth0      Link encap:Ethernet  HWaddr 00:13:72:FB:09:66
>           inet addr:10.142.4.25  Bcast:10.142.4.255  Mask:255.255.255.0
>           inet6 addr: fe80::213:72ff:fefb:966/64 Scope:Link
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:429602 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:286189 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:1000
>           RX bytes:42096900 (40.1 MiB)  TX bytes:27083024 (25.8 MiB)
>           Interrupt:169 Memory:f8000000-f8011100
> 
> eth1      Link encap:Ethernet  HWaddr 00:13:72:FB:09:68
>           inet addr:10.143.4.25  Bcast:10.143.255.255  Mask:255.255.0.0
>           inet6 addr: fe80::213:72ff:fefb:968/64 Scope:Link
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:181050667 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:167463035 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:1000
>           RX bytes:213247025573 (198.6 GiB)  TX bytes:215923168460  
> (201.0 GiB)
>           Interrupt:169 Memory:f4000000-f4011100

The traffic really went through eth1, as can be seen from "RX bytes" and 
"TX bytes" above.

> 
> lo        Link encap:Local Loopback
>           inet addr:127.0.0.1  Mask:255.0.0.0
>           inet6 addr: ::1/128 Scope:Host
>           UP LOOPBACK RUNNING  MTU:16436  Metric:1
>           RX packets:240 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:240 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:0
>           RX bytes:20520 (20.0 KiB)  TX bytes:20520 (20.0 KiB)
> 
> >What does "dmesg | grep 'Added.LNI'" say after lnet module is loaded?
> > dmesg | grep 'Added.LNI'
> Lustre: Added LNI 10.142.1.25@tcp [8/256]

This looks weird. Can you please run "lctl --net tcp print_interfaces" 
and give me the outputs?

Can you also unload all lustre/lnet modules, and load lnet separately by 
running "modprobe lnet networks='tcp(eth1)' config_on_load=1"? Does it
change anything?

Isaac

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