Hi, I am new to Spark and I have been trying to run Spark in yarn-client mode.
I get this error in yarn logs : Error: Could not find or load main class org.apache.spark.executor.CoarseGrainedExecutorBackend Also, I keep getting these warnings: WARN YarnScheduler: Initial job has not accepted any resources; check your cluster UI to ensure that workers are registered and have sufficient resources WARN YarnSchedulerBackend$YarnSchedulerEndpoint: ApplicationMaster has disassociated WARN ReliableDeliverySupervisor: Association with remote system [akka.tcp://sparkYarnAM@<hostname:port>] has failed, address is now gated for [5000] ms. Reason is: [Disassociated]. I believe that executors are starting but are unable to connect back to the driver. How do I resolve this? Also, I need help in locating the driver and executor node logs. Thanks. Regards, Sushrut Ikhar [image: https://]about.me/sushrutikhar <https://about.me/sushrutikhar?promo=email_sig>
