17/02/27 21:14:47 INFO mapreduce.Job: Task Id : attempt_1488256893995_0001_r_000000_2, Status : FAILED Container launch failed for container_1488256893995_0001_01_000008 : java.net.NoRouteToHostException: No Route to Host from mc1/--host-- to mc2:33382 failed on socket timeout exception: java.net.NoRouteToHostException: No route to host; For more details see: http://wiki.apache.org/hadoop/NoRouteToHost Its a firewall or iptables related issue. Run this command worked for me as a solution. # /etc/init.d/iptables stop after this Run above MR job will be successful To reproduce the same scenario run below cmd and checkout the failure upon job run. # /etc/init.d/iptables start ... View more