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RE: Everything about Sendmail is Slow



I checked the DNS resolvers and no problem there.  Also if you ping a
hostname it resolves immediately.

What about the fact that the mailq command takes upwards of 1 minute to
output the q, even when the q  is empty?


-Dave

-----Original Message-----
From: Eric G. Miller [mailto:egm2@jps.net] 
Sent: Saturday, March 02, 2002 2:31 PM
To: Debian User
Subject: Re: Everything about Sendmail is Slow

On Sat, Mar 02, 2002 at 12:37:08PM -0800, Dave Scott wrote:
> Hi, I got a server with 30 users on it, Mailman with 7 listservs
going.
> 
> 
> Debain 2.2, Kernel 2.2.17, Sendmail 8.9.3-21
> 
> For some reason, just the past few days, users have complained of
> slowness of up to a few minutes to send out mail.
> 
> If I log in and try to check the mailq, it responds with what is in
the
> mailq but only after a minute or two. 
> 
> The mailq always responded before within a second or two.
> 
> All mail seems to be processed, but only after a delay.
> 
> So, it seems Sendmail is busy doing something and cannot respond fast,
> yet no one is sending mail at the time(that I know of) and the rest of
> the box seems snappy.

My first guess would be to look at DNS resolution.  It has the symptoms
of slow host lookups.

-- 
Eric G. Miller <egm2@jps.net>


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