Re: [vchkpw] [OT] vpopmail cluster + LVS experience
* Davide Giunchi [EMAIL PROTECTED] [020924 13:40]: Hello. What about LVS w/ qmail+vpopmail for load-balancing and ha of SMTP and POP3 services ? I'm worried about the ability of LVS to support ~ 300 POP3 + 200 SMTP concurrent connections. The use of LVS will make the administrator's live easier for load-balancing feature and high-availability capacity of lvs with mon, but what about performance of the single load balancing server that will get a lot of connections? If you use DR (Direct Routing) there is very little data between the client and the router. For a deeper description se: http://www.linuxvirtualserver.org/VS-DRouting.html Joseph Mach has done some performance testing and have documented it at: http://www.linuxvirtualserver.org/Joseph.Mack/performance/single_realserver_performance.html Patrick O'Rourke and Mike Keefe at Mission Critical Linux have an exelent document about LVS performance at: http://www.linuxvirtualserver.org/performance/lvs.ps.gz -- .Fredrik Steen - http://www.stone.nu/ -
RE: [vchkpw] [OT] vpopmail cluster + LVS experience
We do about that many connections now without any problems. This is on a Dual PIII-866 with 1.5gigs of RAM. Using a IDE DMA100 drive for the system and a raid for the mail. There are a few patches I had to apply to qmail for it to keep up with a mail however. --- Brad Dameron Network Account Executive TSCNet Inc. www.tscnet.com Silverdale, WA. 1-888-8TSCNET -Original Message- From: Davide Giunchi [mailto:[EMAIL PROTECTED]] Sent: Tuesday, September 24, 2002 4:40 AM To: [EMAIL PROTECTED] Subject: [vchkpw] [OT] vpopmail cluster + LVS experience Hello. What about LVS w/ qmail+vpopmail for load-balancing and ha of SMTP and POP3 services ? I'm worried about the ability of LVS to support ~ 300 POP3 + 200 SMTP concurrent connections. The use of LVS will make the administrator's live easier for load-balancing feature and high-availability capacity of lvs with mon, but what about performance of the single load balancing server that will get a lot of connections? Any advice will be appreciate. Regards -- Davide Giunchi.
