On 5/27/02 12:16 PM, "Barry A. Warsaw" <barry@zope.com> wrote:
NB> Now the welcome messages are going out, at a rate of one NB> message every 6.6 seconds. This is on inexpensive hardware (a NB> Cobalt RaQ3) but the server is otherwise idle.
There are a lot of unknowns here though. For example, we don't know if your rate limits are caused by MTA or network throttles.
If it's a cobalt, ti's probably sendmail. If it's sendmail, it's probably the DNS-on-accept delays that sendmail has (unless you turn on deliverymode=defer, which disables relay checks). So I'm willing to bet there's a lot of DNS delay here.
You can get around this by setting up a special incoming port attached only to localhost so that nobody else can use it, and then you can use the defer mode on that port safely, and speed things up hugely.
Then you need to look at disk I/O and whether you're MTA is thrashing because of access contention on the mqueeu directory(s). I'd put the chance of qfile issues really low on the list of things to check here.
-- Chuq Von Rospach, Architech chuqui@plaidworks.com -- http://www.chuqui.com/
IMHO: Jargon. Acronym for In My Humble Opinion. Used to flag as an opinion something that is clearly from context an opinion to everyone except the mentally dense. Opinions flagged by IMHO are actually rarely humble. IMHO. (source: third unabridged dictionary of chuqui-isms).