Messages in this thread | | | Date | Mon, 25 Aug 2008 11:04:08 -0500 | From | Tom Tucker <> | Subject | Re: NFS regression? Odd delays and lockups accessing an NFS export. |
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Trond Myklebust wrote: > On Sun, 2008-08-24 at 23:09 +0100, Ian Campbell wrote: >> (added some quoting from previous mail to save replying twice) >> >> On Sun, 2008-08-24 at 15:19 -0400, Trond Myklebust wrote: >>> On Sun, 2008-08-24 at 15:17 -0400, Trond Myklebust wrote: >>>> >From the tcpdump, it looks as if the NFS server is failing to close the >>>> socket, when the client closes its side. You therefore end up getting >>>> stuck in the FIN_WAIT2 state (as netstat clearly shows above). >>>> >>>> Is the server keeping the client in this state for a very long >>>> period? >> Well, it had been around an hour and a half on this occasion. Next time >> it happens I can wait longer but I'm pretty sure I've come back from >> time away and it's been wedged for at least a day. How long would you >> expect it to remain in this state for? > > The server should ideally start to close the socket as soon as it > receives the FIN from the client. I'll have a look at the code. >
I don't think it should matter how long the connection stays in FIN WAIT, the client should reconnect anyway.
Since the client seems to be the variable, I would think it might be an issue with the client reconnect logic?
That said, 2.6.25 is when the server side transport switch logic went in.
Tom
> Trond > > -- > To unsubscribe from this list: send the line "unsubscribe linux-nfs" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html
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