The pop3 box is a dedicated quad core with 4gb of ram. I've watched the box looking for bottlenecks during the busy periods, there are no bandwidth/cpu/disk bottlenecks on the pop3 server, likewise ive watched the backend server which seems like it's at reasonable load but not exhausted as far as performance is concerned.
We push at peak maybe 10mbit/s so no where near the 30mb/s you quote but bandwidth is not an issue (it's as good as unlimited). Checking through the scoreboard it seems like we are just getting alot of hits (i don't think surprising given over 6,200 accounts). At this stage having found no bottlenecks im thinking increasing this hard 300 limit might be ok, but i wanted to seek advice on potential repercussions before going ahead. During cleanup also becomes a problem, so the quick fix for me is to increase the limit and allow me enough time to plan a second server and loadbalance the two Thanks. Jon > -----Original Message----- > From: [email protected] [mailto:[email protected]] On > Behalf Of Michael Monnerie > Sent: 16 June 2009 21:30 > To: DBMail mailinglist > Subject: Re: [Dbmail] MAX_CHILDREN > > On Dienstag 16 Juni 2009 Jon Duggan wrote: > > MAX_CHILDREN limit of 300 in pop3 > > Are you sure your box has enough RAM to keep 300 pop3 daemons around, > plus the memory they need during I/O? Maybe it'd be better to install a > 2nd box? If your machine is already swapping, more processes with > actually lower your throughput. > > If the average pop3 user can receive with 100KB/s, your machine would > need 30.000 KB/s (about 30Mb/s) Internet connection, and of course your > database (same server? or another?) needs to be fast enough also. Sure > you don't hit an I/O limit somewhere? > > Not want to offend, just help. But I don't know for the 300 limit in > the > code. > > mfg zmi > -- > // Michael Monnerie, Ing.BSc ----- http://it-management.at > // Tel: 0660 / 415 65 31 .network.your.ideas. > // PGP Key: "curl -s http://zmi.at/zmi.asc | gpg --import" > // Fingerprint: AC19 F9D5 36ED CD8A EF38 500E CE14 91F7 1C12 09B4 > // Keyserver: wwwkeys.eu.pgp.net Key-ID: 1C1209B4 > > _______________________________________________ > DBmail mailing list > [email protected] > http://mailman.fastxs.nl/cgi-bin/mailman/listinfo/dbmail _______________________________________________ DBmail mailing list [email protected] http://mailman.fastxs.nl/cgi-bin/mailman/listinfo/dbmail
