Thanks Henry, Regards, </VJ>
On Thu, Jan 14, 2010 at 12:40 PM, Henry Robinson <he...@cloudera.com> wrote: > Hi - > > If you put all your voting nodes in one datacenter, that datacenter becomes > a 'single point of failure' for the cluster. If it gets cut off from any > other datacenters, the cluster will not be available to those datacenters. > > If you want to withstand the failure of datacenters, then you need voting > members inside every datacenter. Observers can't suddenly become voting > members. > > You can't even put 'dormant' voting members (that never bother to vote) in > your other datacenters because you would need a quorum of them to continue > after the original datacenter failed. And if this was true, the original > datacenter would not, by construction, contain a quorum of voting nodes. So > you'd still have to vote outside the cluster. > > Henry > > 2010/1/14 Vijay <vijay2...@gmail.com> > > > Hi, > > > > I read about observers in other datacenter, > > > > My question is i dont want voting across the datacenters (So i will use > > observers), at the same time when a DC goes down i dont want to loose the > > cluster, whats the solution for it? > > > > I have to have 3 nodes in primary DC to accept 1 node failure. Thats > > fine... > > but what about the other DC? how many nodes and how will i make it work? > > > > Regards, > > </VJ> > > >
