You have a connection refuse error.
You need to check:
-That the master is listening on specified host&port.
-No firewall blocking access.
-Make sure that config is pointing to the master host&port. Check the host
name from the web console.
Send more details about cluster layout for more details..
Hi, everybody!
I'm trying to deploy a simple app in Spark standalone cluster with a single
node (the localhost).
Unfortunately, something goes wrong while processing the JAR file and an
exception NullPointerException is thrown.
I'm running everything in a single machine with Windows8.
Check below
