Check whether the name can be resolved in the /etc/hosts file (or DNS) of the worker
(the same btw applies for the Node where you run the driver app – all other nodes must be able to resolve its name) From: Stephen Boesch [mailto:java...@gmail.com] Sent: Wednesday, May 20, 2015 10:07 AM To: user Subject: Intermittent difficulties for Worker to contact Master on same machine in standalone What conditions would cause the following delays / failure for a standalone machine/cluster to have the Worker contact the Master? 15/05/20 02:02:53 INFO WorkerWebUI: Started WorkerWebUI at http://10.0.0.3:8081 15/05/20 02:02:53 INFO Worker: Connecting to master akka.tcp://sparkMaster@mellyrn.local:7077/user/Master... 15/05/20 02:02:53 WARN Remoting: Tried to associate with unreachable remote address [akka.tcp://sparkMaster@mellyrn.local:7077]. Address is now gated for 5000 ms, all messages to this address will be delivered to dead letters. Reason: Connection refused: mellyrn.local/10.0.0.3:7077 15/05/20 02:03:04 INFO Worker: Retrying connection to master (attempt # 1) .. .. 15/05/20 02:03:26 INFO Worker: Retrying connection to master (attempt # 3) 15/05/20 02:03:26 INFO Worker: Connecting to master akka.tcp://sparkMaster@mellyrn.local:7077/user/Master... 15/05/20 02:03:26 WARN Remoting: Tried to associate with unreachable remote address [akka.tcp://sparkMaster@mellyrn.local:7077]. Address is now gated for 5000 ms, all messages to this address will be delivered to dead letters. Reason: Connection refused: mellyrn.local/10.0.0.3:7077
