Slow MailScanner

[DAve]

Jay Chandler wrote:
> DAve wrote:
>> Jay Chandler wrote:
>>> I have two servers.
>>>

<snip>

>>>>lScanner[55686]: Batch (30 messages) 
>>>> processed in 647.57 seconds
>>>> Feb 13 08:39:48 spacecowboy MailScanner[56780]: Batch (5 messages) 
>>>> processed in 68.93 seconds
>>>
>>> Any idea what would be causing this?  Same configuration, same MX 
>>> priority.  The one with delays has built quite the queue backlog.
>>>
>>
>> Can both machines resolve DNS with the same speed?
>> Do you have a caching name server on both machines?
>> Is the Bays DB the same size on both machines?
>>
>>
> I've been wrestling with this a bit.
> 
> A few questions:
> 
> 1. How do I set up a caching nameserver?  Can someone throw me a link?
> 

I highly recommend djbdns. You will need to install tcpserver but it is 
all very simple.
http://cr.yp.to/djbdns.html
http://cr.yp.to/daemontools/install.html
http://cr.yp.to/ucspi-tcp/install.html

Once dbjdns is installed, follow these instructions.

http://cr.yp.to/djbdns/run-cache.html

That will get a simple dnscache running that will pretty much be bullet 
proof. We run it on all our servers, web, ftp, pop toasters, mail 
gateways, and media servers. It makes a considerable difference in DNS 
lookup times. It is light, simple, efficient, and code small.

DAve

-- 
Three years now I've asked Google why they don't have a
logo change for Memorial Day. Why do they choose to do logos
for other non-international holidays, but nothing for
Veterans?

Maybe they forgot who made that choice possible.