Hi, I have a YARN hadoop setup of 8 nodes (7 datanodes, 1 namenode and resourcemaneger). I have Spark setup only on the namenode/resource manager.
Do I need to have Spark installed on the datanodes? I asked because I'm getting below error when I run a Spark job through spark-submit: Error: Could not find or load main class org.apache.spark.deploy.yarn.ExecutorLauncher I appreciate your help. Many thanks
