On Tue, May 11, 2010 at 09:35:26AM -0300, Andre Nathan wrote: > Hello > > I'm setting up a two-machine cyrus cluster using OCFS2 over DRBD. The > setup is working fine, and I'm now considering the load balancing > options I have. > > I believe the simplest option would be to simply rely on DNS load > balancing. However, for this to work, I need to consider what happens > when one of the cluster nodes fails, regarding the clients which access > the cluster: > > - Will IMAP and POP3 clients automatically try the second DNS entry if > connecting to the first one fails? > - Will the LMTP client also do this? I'm using the postfix LMTP client > for delivery. > > Does any one have experience with this kind of setup? > > Thanks in advance, > Andre > Hi Andre, Most mail clients will provide a very poor user experience for failover with DNS load balancing. Almost any other option would be a better choice although not as simple to implement. Regards, Ken ---- Cyrus Home Page: http://cyrusimap.web.cmu.edu/ Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
