Hi Konrad, The masters simply use a znode in ZooKeeper to track which is which. This is a basic and fundamental mechanism that ZK provides and nothing above that is needed.
Note that you can start masters in non-active mode to enforce that you start the active on a node of your choice. Lars On Mar 10, 2012, at 21:04, Konrad Tendera <[email protected]> wrote: > Hello everyone, > > While I was reading some informations about multi-Master environment I > started to wondering how the "main" master is elected. As far as I know if > e.g. I have 5 Masters only one is "real" Master and the rest are only > backups. The main problem is that I couldn't find any larger info about whole > process (i.e. how the Master is elected). Maybe You know some blogs or other > resources where this issue is described (I suposse that JIRA should help me > but it is hard for me to find). Thanks in advance for all your replies. > > KT
