It would be interesting to see how HBase would react to a loss of the NN when trying to shutdown HBase in the following minutes, but I think it would be better to try than just losing the two at the same time.
J-D On Sun, Dec 14, 2008 at 12:13 PM, Wesley Chow <[email protected]> wrote: > > 3. Can I run the NameNode and the HBaseMaster on the same machine? >>> >> >> > 3. No, that would make 2 SPOFs at the same place. (but we are currently >> integrating Zookeeper in HBase so the HMaster SPOF will be fixed hopefully >> in 0.20) >> > > Isn't it the case that if the NN goes down then HBase doesn't function > properly? If so, then from the perspective of HBase reliability, you'd want > to have the HBaseMaster on the same machine as NN, because that would make a > single machine a point of failure, whereas having them on separate machines > would mean you'd have 2 machines that are each single point of failures. > > > Wes > >
