From: "Jeff V. Merkey" <jmerkey@timpanogas.org>
To: David Lang <david.lang@digitalinsight.com>
Cc: sendmail-bugs@sendmail.org, linux-kernel@vger.kernel.org
Subject: Re: sendmail fails to deliver mail with attachments in /var/spool/mqueue
Date: Fri, 10 Nov 2000 15:07:49 -0700 [thread overview]
Message-ID: <3A0C71B5.A6644873@timpanogas.org> (raw)
In-Reply-To: <Pine.LNX.4.21.0011101450060.11307-100000@dlang.diginsite.com>
David Lang wrote:
>
> how many CPUs in these high loadave boxes? unless you have a very
> impressive machine (8+SMP) the defaults should be plenty high.
>
> also I thought the QueueLA default was 8 and the RefuseLA was 12 or have
> they been bumped up since I last examined them (8.8/8.9 timeframes)
I think this may be related to VM activity. I looked at /proc/meminfo
and the sendmail sickness seems directly related to heavy VM activity in
the box. This may be one for Rik/Linus. I'm just trying to get
Ute-NWFS out the door and want stuff to work.
:-)
Jeff
>
> David Lang
>
> On Fri, 10 Nov 2000, Jeff V. Merkey wrote:
>
> > Date: Fri, 10 Nov 2000 14:52:01 -0700
> > From: Jeff V. Merkey <jmerkey@timpanogas.org>
> > To: sendmail-bugs@sendmail.org, linux-kernel@vger.kernel.org
> > Subject: Re: sendmail fails to deliver mail with attachments in
> > /var/spool/mqueue
> >
> >
> >
> > Hey guys,
> >
> > We got to the bottom of the sendmail problem. The line:
> >
> > -O QueueLA=20
> >
> > and
> >
> > -O RefuseLA=18
> >
> > Need to be cranked up in sendmail.cf to something high since the
> > background VM on a very busy Linux box seems to exceed this which causes
> > large emails to get stuck in the /var/spool/mqueue directory for long
> > periods of time. Since vger is getting hammered with FTP all the time,
> > and is rarely idle. This also explains what Richard was seeing with VM
> > thrashing in a box with low memory.
> >
> > The problem of dropping connections on 2.4 was related to the O RefuseLA
> > settings. The defaults in the RedHat, Suse, and OpenLinux RPMs are
> > clearly set too low for modern Linux kernels. You may want them cranked
> > up to 100 or something if you want sendmail to always work.
> >
> > Jeff
> >
> > "Jeff V. Merkey" wrote:
> > >
> > > Claus,
> > >
> > > This is a bug. emails should not get stuck in the mail queue because
> > > your load averaging routine doesn't work right. If this is so, then why
> > > do some emails (small ones) get through and big ones do not,
> > > irreguardless of delivery order. If it were a loading problem one would
> > > think emails would still get processed in the order they arrived, not
> > > some arbitrary "order from hell" which is what was happening. This is
> > > severely broken IMHO and you need to fix it.
> > >
> > > Jeff
> > >
> > > Claus Assmann wrote:
> > > >
> > > > All of these entries have an 'X':
> > > >
> > > > > Mail Queue (11 requests)
> > > > > --Q-ID-- --Size-- -Priority- ---Q-Time--- -----------Sender/Recipient-----------
> > > > > FAA15716X 31418 200564 Nov 9 05:01 <linux-kernel-owner@vger.kernel.org>
> > > > > 7BIT
> > > > > <linux-archive@timpanogas.org>
> > > > > <jmerkey@timpanogas.org>
> > > > > FAA20318X 32693 201751 Nov 10 05:29 <linux-kernel-owner@vger.kernel.org>
> > > > > 7BIT
> > > > > <linux-archive@timpanogas.org>
> > > > > <jmerkey@timpanogas.org>
> > > > > SAA01998X 34484 203865 Nov 6 18:20 <linux-kernel-owner@vger.kernel.org>
> > > > > 7BIT
> > > > > <linux-archive@timpanogas.org>
> > > > > <jmerkey@timpanogas.org>
> > > > > QAA01341X 65091 204150 Nov 6 16:50 <linux-kernel-owner@vger.kernel.org>
> > > > > 7BIT
> > > > > <mharris@opensourceadvocate.org>
> > > > > SAA13390X 41368 210478 Nov 8 18:03 <linux-kernel-owner@vger.kernel.org>
> > > > > 7BIT
> > > > > <linux-archive@timpanogas.org>
> > > > > <jmerkey@timpanogas.org>
> > > > > LAA03425X 158115 218595 Nov 6 11:27 <jmerkey@timpanogas.org>
> > > > > <Mark.Coe@rrd.com>
> > > > > <jmerkey@timpanogas.com>
> > > > > QAA01343X 65091 234150 Nov 6 16:50 <linux-kernel-owner@vger.kernel.org>
> > > > > 7BIT
> > > > > <linux-archive@timpanogas.org>
> > > > > <jmerkey@timpanogas.org>
> > > > > KAA21225X 205041 235799 Nov 10 10:26 <paperboy@g2news.com>
> > > > > 8BITMIME
> > > > > <jmerkey@timpanogas.com>
> > > > > FAA20229X 1457 272283+Nov 10 05:01 <mharris@opensourceadvocate.org>
> > > > > (Warning: could not send message for past 1 hour)
> > > > > <andre@linux-ide.org>
> > > > > QAA06681X 242511 272929 Nov 7 16:18 <jmerkey@timpanogas.org>
> > > > > 8BITMIME
> > > > > <andre@timpanogas.org>
> > > > > PAA12261X 576306 606701 Nov 8 15:06 <langus@timpanogas.com>
> > > > > <jmerkey@timpanogas.com>
> > > >
> > > > That is, the load on your machine is too high.
> > > > 3:27pm up 29 min, 2 users, load average: 10.00, 9.97, 8.50
> > > >
> > > > It seems as if this is broken, top shows 2 running processes
> > > > and 67 sleeping.
> > > >
> > > > If you run the queue with -O QueueLA=20 the entries are processed.
> > > > So you have to change your configuration to deal with the "high"
> > > > load, which I did right now by editing your .cf file.
> > -
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> > the body of a message to majordomo@vger.kernel.org
> > Please read the FAQ at http://www.tux.org/lkml/
> >
> -
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next prev parent reply other threads:[~2000-11-10 22:12 UTC|newest]
Thread overview: 96+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <3A0C427A.E015E58A@timpanogas.org>
[not found] ` <20001110095227.A15010@sendmail.com>
[not found] ` <3A0C37FF.23D7B69@timpanogas.org>
[not found] ` <20001110101138.A15087@sendmail.com>
[not found] ` <3A0C3F30.F5EB076E@timpanogas.org>
[not found] ` <20001110133431.A16169@sendmail.com>
[not found] ` <3A0C6B7C.110902B4@timpanogas.org>
2000-11-10 21:52 ` sendmail fails to deliver mail with attachments in /var/spool/mqueue Jeff V. Merkey
2000-11-10 22:03 ` Neil W Rickert
2000-11-10 22:05 ` Jeff V. Merkey
2000-11-10 22:18 ` Alexander Viro
2000-11-10 22:22 ` Jeff V. Merkey
2000-11-10 22:32 ` Claus Assmann
2000-11-10 22:31 ` Jeff V. Merkey
2000-11-10 22:23 ` Richard A Nelson
2000-11-11 13:45 ` Henning P. Schmiedehausen
2000-11-10 22:18 ` H. Peter Anvin
2000-11-10 22:29 ` Jeff V. Merkey
2000-11-11 1:44 ` Ralf Baechle
2000-11-11 1:46 ` H. Peter Anvin
2000-11-11 3:16 ` Jeff V. Merkey
2000-11-11 11:54 ` Andrea Arcangeli
2000-11-11 18:03 ` Jeff V. Merkey
2000-11-11 1:35 ` Ralf Baechle
2000-11-11 1:42 ` H. Peter Anvin
2000-11-11 1:47 ` Mohammad A. Haque
2000-11-10 23:25 ` Davide Libenzi
2000-11-11 12:23 ` (non)importance of loadaverages bert hubert
2000-11-10 22:52 ` sendmail fails to deliver mail with attachments in /var/spool/mqueue David Lang
2000-11-10 22:07 ` Jeff V. Merkey [this message]
2000-11-10 22:25 ` Claus Assmann
2000-11-10 23:01 ` H. Peter Anvin
2000-11-11 7:57 ` Rogier Wolff
2000-11-11 8:23 ` [OFF] Load avarage (Re: sendmail fails to deliver mail with attachments in /var/spool/mqueue) Kari E. Hurtta
2000-11-11 0:28 ` Wild thangs, was: sendmail fails to deliver mail with attachments in /var/spool/mqueue David Ford
2000-11-11 0:27 ` Jeff V. Merkey
2000-11-11 0:46 ` David Ford
2000-11-11 3:25 ` Jeff V. Merkey
2000-11-11 2:41 ` David Ford
2000-11-11 2:45 ` Andrew Morton
2000-11-11 3:09 ` Andrew Morton
2000-11-11 1:18 ` H. Peter Anvin
2000-11-13 16:34 ` [OT] " Bruce Guenter
2000-11-11 13:40 ` Henning P. Schmiedehausen
2000-11-11 18:11 ` Jeff V. Merkey
2000-11-11 19:12 ` Henning P. Schmiedehausen
2000-11-11 19:38 ` J Sloan
2000-11-13 6:22 ` Jeff V. Merkey
2000-11-12 4:44 ` Jesse Pollard
[not found] <200011102251.eAAMp1I232107@saturn.cs.uml.edu>
2000-11-10 22:51 ` Jeff V. Merkey
2000-11-10 18:45 [Fwd: sendmail fails to deliver mail with attachments in /var/spool/mqueue] Jeff V. Merkey
2000-11-10 18:52 ` William F. Maton
2000-11-10 18:52 ` Jeff V. Merkey
2000-11-10 19:05 ` Horst von Brand
2000-11-10 19:04 ` Jeff V. Merkey
2000-11-10 19:30 ` Horst von Brand
2000-11-10 19:46 ` Tim Walberg
2000-11-11 11:33 ` Dominik Kubla
2000-11-11 13:35 ` Henning P. Schmiedehausen
2000-11-10 23:41 ` Igmar Palsenberg
2000-11-10 22:34 ` Jeff V. Merkey
2000-11-11 0:45 ` Igmar Palsenberg
2000-11-10 23:40 ` Igmar Palsenberg
2000-11-10 19:08 ` Richard A Nelson
2000-11-10 19:10 ` Jeff V. Merkey
2000-11-10 19:15 ` William F. Maton
2000-11-10 23:37 ` Igmar Palsenberg
2000-11-10 19:34 ` Richard B. Johnson
2000-11-10 19:33 ` Jeff V. Merkey
2000-11-11 13:24 ` Henning P. Schmiedehausen
2000-11-11 18:05 ` Jeff V. Merkey
2000-11-10 19:02 ` Richard A Nelson
2000-11-10 19:00 ` Jeff V. Merkey
2000-11-10 19:11 ` Richard A Nelson
2000-11-10 19:13 ` Jeff V. Merkey
2000-11-10 19:25 ` Jeff V. Merkey
2000-11-10 19:35 ` Andrea Arcangeli
2000-11-10 19:34 ` Jeff V. Merkey
2000-11-10 19:51 ` Andrea Arcangeli
2000-11-10 20:07 ` Richard B. Johnson
2000-11-10 20:21 ` Andrea Arcangeli
2000-11-10 20:27 ` Jeff V. Merkey
2000-11-10 20:36 ` Richard B. Johnson
2000-11-10 21:09 ` William F. Maton
2000-11-10 21:10 ` Jeff V. Merkey
2000-11-10 20:42 ` Richard B. Johnson
2000-11-10 20:47 ` Jeff V. Merkey
2000-11-10 20:59 ` Claus Assmann
2000-11-10 22:28 ` Davide Libenzi
2000-11-10 21:16 ` Claus Assmann
2000-11-10 22:19 ` H. Peter Anvin
2000-11-11 0:14 ` Igmar Palsenberg
2000-11-10 23:12 ` Claus Assmann
2000-11-10 23:13 ` Jeff V. Merkey
2000-11-11 1:15 ` Steve VanDevender
2000-11-11 2:02 ` David Ford
2000-11-11 3:20 ` Jeff V. Merkey
2000-11-11 3:14 ` Jeff V. Merkey
2000-11-11 13:29 ` Henning P. Schmiedehausen
2000-11-10 20:31 ` Jeff V. Merkey
2000-11-12 1:39 ` Horst von Brand
2000-11-13 2:58 ` David Ford
2000-11-11 13:20 ` Henning P. Schmiedehausen
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