Hi @Sagar Shimpi, YARN does not have REST api to add a queue. We need to change the capacity-scheduler.xml and refresh yarn queues using "yarn rmadmin -refreshQueues" command. The same is done by the Ambari Server. The REST api you have shared is from Browser to Ambari Server, which internally calls the queue refresh command. ... View more

Crisp and Clear... ... View more

Can you check if somewhere in spark-example.py or any spark-default.conf is overriding the master and deploy-mode properties ... View more