Q1: You can change the port number on the master in the file conf/spark-defaults.conf. I don't know what will be the impact on a cloudera distro thought.
Q2: Yes: a Spark worker needs to be present on each node which you want to make available to the driver. Q3: You can submit an application from your laptop to the master with the spark-submit script. You don't need to contact the workers directly. -- View this message in context: http://apache-spark-user-list.1001560.n3.nabble.com/Is-it-possible-to-change-the-default-port-number-7077-for-spark-tp23774p23781.html Sent from the Apache Spark User List mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: user-unsubscr...@spark.apache.org For additional commands, e-mail: user-h...@spark.apache.org