> -----Original Message----- > From: Tony Finch [mailto:[EMAIL PROTECTED] > Sent: Tuesday, June 28, 2005 1:39 PM > To: [EMAIL PROTECTED] > Cc: [email protected] > Subject: Re: [exim] exim allowed someone to slam my mail > server for 3 hours > > > Exim doesn't support tightly-coupled clusters. This is a > weakness in the implementation of the hints DBs, and fixing > it was outside the scope of the ratelimit project. There are > other things that would benefit from better hints DBs: the > current implementation is a major bottleneck for high > capacity servers, so there's scope for improved performance; > sharing the hints DBs will reduce duplicated work across a > cluster (retrys, callouts, etc.); greylisting would be much > better if implemented cluster-wide rathe than per-machine. > Perhaps one day someone will tackle it :-) > > Tony.
Any thoughts on how to improve the current performance of the hints databases ?. We currently use exim to deliver ~250,000 messages a day and are about to implement a system to take that to 2.5M per day (We use multiple load balanced servers) but I have the same concerns about the db's - particually as now the rate limit stuff uses them too. -Andy- -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.323 / Virus Database: 267.8.6/33 - Release Date: 28/06/2005 -- ## List details at http://www.exim.org/mailman/listinfo/exim-users ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://www.exim.org/eximwiki/
