Re: Write failed in network_biopair_interop with errno=104

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Write failed in network_biopair_interop with er...
\ nick (15 Jun 2007)
. \ Victor Duchovni (15 Jun 2007)
. . \ nick (18 Jun 2007)
. . . \ Victor Duchovni (18 Jun 2007)

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Subject:	Re: Write failed in network_biopair_interop with errno=104
Group:	Postfix-users
From:	Victor Duchovni
Date:	18 Jun 2007

On Mon, Jun 18, 2007 at 09:48:20AM +0100, nick wrote:

> Quoting Victor Duchovni <Victor.Duchovni>:
>
> > On Fri, Jun 15, 2007 at 08:42:45AM +0100, nick wrote:
> >
> > > maillog.1:Jun 14 10:58:17 hpukhxdmz79 postfix/smtp[10019]: warning: Write failed in network_biopair_interop with errno=104: num_write=-1,
> > > provided=4133
> >
> > Assuming that your's is a similar Linux system to the one on which I ran
> > this Perl one-liner:
> >
> > $ perl -le '$! = 104; print "$!\n";'
> > Connection reset by peer
> >
> > The problem is that the remote end closed the TCP connection. Note that
> > they
>
> I have no idea how that perl one liner relates to postfix, but yes I get the same message from it as you.

Look for "with errno=104: num_write=-1" in the log entry you reported. When
the Unix write(2) system call fails, it returns -1 (or sometimes 0) and
sets "errno" to a numeric value that indicates the reason. See the write(2)
manpage (and lots of others) for detail.

--
Viktor.

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