"Amos Shapira" <[EMAIL PROTECTED]> writes: > BUT now that we are finally moving from DNS-based fail-over (due to > lack of Virtual IP support in the hosting product we originally had) > to Virtual-IP (using Linux Virtual Server) we see how MySQL > master-master replication (using simple two-sided replication, e.g. > http://www.howtoforge.com/mysql-5-master-master-replication-fedora-8, > NOT the "MySQL Cluster" product which last time I read about it it > sounded like a bad joke) would benefit us - > 1. It means that fail-over time will be virtually zero (compared to a > few seconds to bring up the secondary) > 2. It means that we can take advantage of both MySQL servers in > parallel - for higher capacity
It looks like you are also interested in load balancing / scalability and are looking for active/active failover as a part of that. AFAIK, LinuxHA has active/active mode, but I have never used it. From Noam's description it seems that active/passive is what he is looking for. >> [2] RedHat is the only exception I know of, I suppose because they >> have their own clustering product - of course RPMs are there. > > Exception to what? Linux-HA and DRBD comes packaged in CentOS 5 and we > have all software from rpm's, we didn't have to compile anything. RPMs are there, but AFAIK they are not included by default in RHEL (the "RedHat" we, as a commercial company, normally deal with, as opposed to CentOS). Other distros (including, e.g., SLES) have LinuxHA in by default. We have it here on RHEL, actually it was the first platform we tried it on and it was up and running in no time, providing failover to a rather sophisticated bunch of servers with MySQL inside. -- Oleg Goldshmidt | [EMAIL PROTECTED] ================================================================= To unsubscribe, send mail to [EMAIL PROTECTED] with the word "unsubscribe" in the message body, e.g., run the command echo unsubscribe | mail [EMAIL PROTECTED]
