Hi, Thanks for your response.
You mean NN will always try to maintain number of replicas as configured even if one DN goes down and unable to come up? Thanks -OC On Mon, Dec 9, 2013 at 8:18 PM, Daryn Sharp <[email protected]> wrote: > To recover a NN, you probably want to use the HA feature. If not, try > writing your edits to a nfs volume in additional to the local fs. > > There is no need to recover a DN. The NN compensates for a lost DN by > using the other remaining replicas to create a new replica on another DN. > > Daryn > > On Dec 9, 2013, at 5:52 AM, oc tsdb <[email protected]> wrote: > > > Hi, > > > > I am trying to understand,how to recover a Name node or Data node > failure in case if those nodes are unable to come up due to unexpected > issues. > > > > Is there a way to replace Name node with new name node without loosing > data.I mean new Name node should have all the data from original Name node. > > Similarly for Data node. > > > > > > Thanks > > -OC > > > > > >
