Cloud you please let me know how to distcp between Insecure cluster to Secured cluster?
You should run the below command on a node of the secure cluster.
If the insecure cluster has HDFS HA enabled, you should check which Namenode is active, and use this one.
hadoop distcp -Dipc.client.fallback-to-simple-auth-allowed=true hdfs://unsecure.cluster.com:8020/user/myuser/source hdfs://secure.cluster.com/user/destuser/destination
I was able to fix the issue. It was due to firewalls.