No there's no MAPS.
I've traced it to two problems.
1) Contrary to what I wrote earlier, the CPU usage was up at 100% - I've
just discovered that Squid/NT uses all the available CPU if it fills up its
cache :)
2) Response times are still up around the 10 secs mark though - I'm sure
they didn't used to be this slow. Does XMail reverse lookup connecting ips?
I don't allow internal DNS information into my DMZ so reverse lookups would
timeout.
I'm fairly sure nothing else has changed, but I also don't remember it
being this slow before. I'm confused! Anything else I could check for?
P.
|--------+---------------------------->
| | Davide Libenzi |
| | <davidel@xmailserv|
| | er.org> |
| | Sent by: |
| | xmail-bounce@xmail|
| | server.org |
| | |
| | |
| | 17/01/2002 17:50 |
| | Please respond to |
| | xmail |
| | |
|--------+---------------------------->
>--------------------------------------------------------------------------------------------------------------------------------------------|
|
|
| To: XMail mailing list <[EMAIL PROTECTED]>
|
| cc:
|
| Subject: [xmail] Re: Slow SMTP banner display
|
>--------------------------------------------------------------------------------------------------------------------------------------------|
On Thu, 17 Jan 2002, Paul Sobey wrote:
> Good morning,
>
> This morning I've noticed that my Xmail relay is taking quite a long time
> from the establishment of an inbound tcp connection to the display of the
> smtp banner. Here is a piece of log from one of my relays:
>
> 09:07:50B4 10.1.1.200 [17/01/2002 09:07:50]
> 09:07:50 000001B4 Starting connection to 10.1.1.200
> 09:07:50 000001B4 Establishing protocol with 10.1.1.200
> 09:08:05 000001B4 220 <[EMAIL PROTECTED]> [XMail 1.2
> (Win32/Ix86)
> 09:08:06 000001B4 HELO discordia.aleagroup.com ---> 250 aleagroup.com
> <bla bla>
>
> As you can see it was 15 seconds from tcp circuit setup to Xmail
displaying
> its prompt. This is in contrast to my experience over the past two weeks,
> during which time the response has always been near instant. The reason I
> noticed was that one of my scripts timed out connecting to my Xmail relay
> trying to send the results of a job. I had set the timeout to 10 seconds,
> after which the script gave up....
>
> Has anyone seen this before? Should I be restarting the service
> periodically? Everything else on the server looks normal - Xmail running
> with its customary 2-3MB working set, CPU fairly relaxed, etc..
Did you change something on your network ?
Do you have maps checks enabled ?
- Davide
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