Am Montag, 21. April 2008 13:20 schrieb Christoph Petersen: > Hi Michael, (...) > I'm using round robin load balancing from DNS right now. But it's simply > switching the host every time. What I would like to have a small daemon or > something which keep track how many processes are running on each node so > how the load is distributed. In my setup with peaks the load is sometimes > distributed very unequally. > > Can I do something like this with LVS? I didn't play around with LVS yet so > I haven't any experience yet.. > > BR > Christoph
Hi, DNS has an failover time of ~60 secs. Sometimes this is not acceptable. LVS is just this what you want. In a simple setup LVS cannot measure the actual load (i.e. uptime) of the nodes in the background and distribute new connections according to that number. BUT LVS knows about the number of actual connections to every node and can distribute load accoring to the least number of connections. You even can attach weights to the least connections algorithm (wlc). ldirectord checks every background server for availablility and distributes new connctions only to available servers. Failover is measured in seconds, not in 10's of seconds. You can make the whole setup high available with Linux-HA. LVS integrates very nicely into that framework. See also chapter "Applications" (sorry: German!) of: http://www.oreilly.de/catalog/linuxhaclusterger/ Christoph: For further questions please contact me off-list. -- Dr. Michael Schwartzkopff MultiNET Services GmbH Addresse: Bretonischer Ring 7; 85630 Grasbrunn; Germany Tel: +49 - 89 - 45 69 11 0 Fax: +49 - 89 - 45 69 11 21 mob: +49 - 174 - 343 28 75 mail: [EMAIL PROTECTED] web: www.multinet.de Sitz der Gesellschaft: 85630 Grasbrunn Registergericht: Amtsgericht München HRB 114375 Geschäftsführer: Günter Jurgeneit, Hubert Martens --- PGP Fingerprint: F919 3919 FF12 ED5A 2801 DEA6 AA77 57A4 EDD8 979B Skype: misch42
