[Lustre-discuss] Frequent OSS Crashes with heavy load

[Brian J. Murrell]

There is really no need to put both andreas and myself into your new
message recipient addresses.  We are both on the lustre-discuss list.

On Thu, 2008-11-13 at 19:32 +0800, wanglu wrote:
> <----I could not log in from SSH here and went to the console-->
> <---What I saw--->
> ...
> Nov 13 18:35:02 boss02 kernel: LustreError: 26928:0:(socklnd.c:1613:ksocknal_destroy_conn()) Completing partial receive from 12345-192.168.52.79 at tcp, ip 192.168.52.79:1021, with error
> Nov 13 18:35:02 boss02 kernel: LustreError: 26928:0:(events.c:361:server_bulk_callback()) event type 2, status -5, desc e1c24000
> Nov 13 18:35:02 boss02 kernel: LustreError: 17941:0:(ost_handler.c:1139:ost_brw_write()) @@@ network error on bulk GET 0(1048576)  req at ea8cd200 x10376088/t0 o4->b99b0138-d1de-93db-0418-c08eeb8c4b57 at NET_0x20000c0a8344f_UUID:0/0 lens 384/352 e 0 to 0 dl 1226573467 ref 1 fl Interpret:/0/0 rc 0/0
                                                                                           ^^^^^^^^^^^^^^^^^^
> Nov 13 18:35:02 boss02 kernel: Lustre: 17941:0:(ost_handler.c:1270:ost_brw_write()) besfs-OST0001: ignoring bulk IO comm error with b99b0138-d1de-93db-0418-c08eeb8c4b57 at NET_0x20000c0a8344f_UUID id 12345-192.168.52.79 at tcp - client will retry
[ Many more ]
> 
> <---At that time, the network was down, couldn't ping gateway-->
> <--I have tried restart service network, but after restarted, gateway was still unreachable--->

You have networking problems, not Lustre problems.  Lustre only utilizes
whatever network you provide it.  It does not control it.  It does not
bring it up, take it down or reconfigure it in any way.  Your operating
system does this.

b.

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