Date: Wed, 4 Sep 2013 11:20:45 -0500
From: Malahal Naineni <malahal@us.ibm.com>
To: jupiter <jupiter.hce@gmail.com>
Cc: NFS list <linux-nfs@vger.kernel.org>
Subject: Re: NFS 4 error
Message-ID: <20130904162045.GC7433@us.ibm.com>
References: <CAA=hcWR28P=bbJvZAmWRF9sr=0=B8SyBsq3U1x2-kTQ=Rr0U4A@mail.gmail.com>
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jupiter [jupiter.hce@gmail.com] wrote:
> Hi,
> 
> I am running NFS 4 server on CentOS 6.4 for many months, it works
> well. Recently I found that the dmesg display many following errors
> but it still works. I searched google but could not find result of how
> to fix it. What are those error message means? Are the errors serious
> or not? How to fix it?
> 
> --------
> rpc-srv/tcp: nfsd: got error -32 when sending 24 bytes - shutting down socket
> rpc-srv/tcp: nfsd: got error -32 when sending 24 bytes - shutting down socket

When the nfsd (NFS server thread) was trying to send something, it got
-32 (EPIPE) error.  I have seen this kind of errors when the socket is
closed by clients.  Clients do close the socket (and recreate one) when
they need to retry due to network failures.

They are NOT serious errors, and if they are still happening, then look
at your network errors/retries etc.

Regards, Malahal.