Date: Wed, 13 May 1998 23:03:02 +0200 From: "IBS / Andre Oppermann" <andre@pipeline.ch> To: Andreas Klemm <andreas@klemm.gtn.com> Cc: IBS / Andre Oppermann <andre@pipeline.ch>, isp@FreeBSD.ORG Subject: Re: how many virtual www server on a 2.2.6 PPro machine ? Message-ID: <355A0A86.3432702D@pipeline.ch> References: <19980513210347.A12724@klemm.gtn.com> <3559FCB1.C2722594@pipeline.ch> <19980513222442.C15191@klemm.gtn.com>
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Andreas Klemm wrote: > > On Wed, May 13, 1998 at 10:04:01PM +0200, IBS / Andre Oppermann wrote: > > Andreas Klemm wrote: > > > Currently a Linux DLD 5.1 chokes on over 120 virtual webservers. > > > Every virtual webserver has it's own log an error logfile. > > > > Just compile with enough MAXUSERS and modify the login class > > to allow all the open files. > > I currently have maxuser set to 128, is that ok for such an > environment ? Yes, I think so. But theres just another thing popping in my mind: put up your mbufs, the network buffers. They are used for caching/ queueing up the output of apache until the client has fetched all the stuff from the server (and that might take a bit over an 28.8 line). This value is normaly rised with maxusers but there has been a lot of discussion on -hackers or -chat the last weeks. Might be worth to take a look into the archives (and into McKusik, the design and implementation of 4.4BSD, I'm half way through). > > > I know, that most people only put about 40 or so virtual > > > webservers onto one machine, but the virtual webservers > > > aren't heavy loaded ... > > > > We are running with 128 or so, no problem so far (with apache). > > I've set up one apache daemon for every 32 virtual servers in the > > case one fails and to have not too many open files per process. > > The box works like a champ (only P5-133) due to the superior > > VM/task sheduler of FreeBSD. > > Wow ! ;-) I've run squid for 150+ users on a 486-100 with 64MB Ram and SCSI harddisk behind an 256k line. Never had any problem... solid like a rock and hyper performance. Users always asked how many gigs RAM in that box are... > > > The max number of IP aliases is 255 I think per network card. > > > If I would like to configure 240 ... would that run or > > > do you see problems ? I'd try that if you don't know. > > > > I've seen a mail on that subject sometime last year. It said > > there should be 'no limit' and he tried it with over 300 (if my > > memory did'nt fail). One suggestion was to alias your loopback > > interface with all that ip's and put a static route on your > > router that points to the whole class-c on your box. This avoids > > all the ARP entries on your ethernet (and I think the arp tables > > are not very huge). > > Thanks ! > > Andreas /// It's interesting, you ask always questions I know the answer for ;) Maybe we should put up a german language FreeBSD mailing list? -- Andre Oppermann CEO / Geschaeftsfuehrer Internet Business Solutions Ltd. (AG) Hardstrasse 235, 8005 Zurich, Switzerland Fon +41 1 277 75 75 / Fax +41 1 277 75 77 http://www.pipeline.ch ibs@pipeline.ch To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message
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