On Mon, Apr 26, 2004 at 07:32:58PM -0700, Abraham Pearson wrote:
> Todd, I tweaked every setting that I seemed to apply, but I do not
> think that I found the setting for aggregating recipients by ISP. I
> did a quick search on google for aggregate on site:www.postfix.org and
> did not come up with anything that seemed pertinent. How do you
> aggregate e-mails by domain, and is that useful?
Check out:
initial_destination_concurrency
default_destination_concurrency_limit
default_destination_recipient_limit
As for whether it's useful or not, that really just depends on your
traffic patterns, as well as the capabilities and configuration of the
destination systems. Check out http://www.postfix.org/QSHAPE_README.html
for more information on how to profile your system.
Personally, I think you are more likely to have an architectural problem
than a tuning issue, and may even be dealing with hardware-level
limitations (see "architectural issue") or filesystem performance
problems.
Spend some time with qshape, iostat, and iptraf. If you're maxing out
your pipe, you'll have to look at serious hardware compression or a
bigger pipe, in addition to tuning. If it's a hardware issue, you'll
need to redesign your server and network to accommodate whatever the
bottleneck is.
--
Find my Techno-Geek Journal at http://www.codegnome.org/geeklog/
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