Check your ip addresses and host names of the RM (could be an issue around which interface the nodes are now using?)
*.......* *“Life should not be a journey to the grave with the intention of arriving safely in apretty and well preserved body, but rather to skid in broadside in a cloud of smoke,thoroughly used up, totally worn out, and loudly proclaiming “Wow! What a Ride!” - Hunter ThompsonDaemeon C.M. ReiydelleUSA (+1) 415.501.0198London (+44) (0) 20 8144 9872* On Tue, Jan 27, 2015 at 6:06 PM, Manoj Samel <manojsamelt...@gmail.com> wrote: > Environment is Hadoop 2.3.0, CDH 5.0, RM and NN in HA, Kerberos Security > > Rolling reboot of cluster was done. Services on each node was not stopped > before, the machines were just shut down, rebooted and services started on > each after reboot. Nodes were shut down in rolling manner such that one RM, > NN etc. were available at all times. > > After restart, all services came up but node managers failed to connect to > Resource managers with "invalid Yarn Credentials". Kerberos keytabs etc. > are valid. The Resource managers services had to be restarted again for > node managers to connect successfully. > > Thoughts? > > Thanks, > > > >
