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If you read the KNOWNBUGS for 8.8.8, the exact same warning is in there
too. I 'assume' you are/were running 8.8.8 already, and are about to
upgrade to 8.9.0. Well, if that is so, it wont be any worse than before
:)
We notice this bug from time to time, but run multiple mail servers to
balance about 100,000 mail per day also.
Its not a loading issue in the kernel, as when the bug hits, we are under
.1 load (we run > 300 mhz on each box with at least 128 megs ram). So the
server its self is not hte bottle neck, there is some broken code in
linux's kernel or the sendmail daemon. It sometimes happens with just 10
sendmail sessions going, and others with > 50 going. So it seems to not
be directly load dependent on the sendmail deamon either.
I'm curious if any other ISP's see this, and what volume they push (we
push about 30k messages per server per day).
Adam Wills Global 2000 Communications
Director of Networking Systems 1840 Western Ave.
[EMAIL PROTECTED] Albany, NY, 12203
http://www.global2000.net (518) 452-1465
On Wed, 20 May 1998, Mark R. Cervarich wrote:
> I'm interested in using 8.9.0, but I've just read the KNOWNBUGS file
> (ftp://ftp.sendmail.org/pub/sendmail/KNOWNBUGS) and saw this
> paragraph:
>
> --begin quote--
>
> * accept() problem on Linux.
>
> Apparently, the accept() in sendmail daemon loop can return
> ETIMEDOUT and cause sendmail to sleep for 5 seconds during which
> time no new connections will be accepted. An error is reported to
> syslog:
>
> Jun 9 17:14:12 hostname sendmail[207]: NOQUEUE: SYSERR(root):
> getrequests: accept: Connection timed out
>
> "Connection timed out" is not documented as a valid return from
> accept(2) and this is believed to be a bug in the Linux kernel.
>
> --end quote--
>
> My sendmail processes >100,000 messages per day. A 5 second delay on
> each message would cause MAJOR problems. Am I reading the KNOWNBUG
> incorrectly, or am I worrying over nothing?
>
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