Hi Charley, in hdfs-site.xml you can find the property dfs.ha.namenodes, setting this property every client will know which NN are elegibles to be active, nothing else are required in client.
Regards. 2014-06-26 21:30 GMT+02:00 Charley Newtonne <[email protected]>: > I have hadoop 2.4 installed in HA mode using QJM. I have verified the > cluster failover works as expected. The java clients are configured to > connect to the active NN by specifying the hdf://nn1.company.com:8020. If > this nn1 is down, how's the client know the location of the standby nn. > Where is the client spillover configured? > > I have seen some references that this is configured in client's > core-site.xml, but this file only specifies the defaultFS (which has the > value of the logical cluster name) and ZK quorum nodes. None of these > appear to be related to client side failover. > > Thanks in advance >
