Thanks @Akhil S Naik , I'm able to pass the parameters now. However, there is a problem i'm facing when i'm submitting the request with "Requests/resource_filters". If i do the below, the custom script is executed but, it gets executed on all hosts instead of only server1 and server2: -d '{"RequestInfo":{"context":"Execute an action", "action" : "stream_file", "parameters" : {"file" : "/hadoop_mount/hdfs.tar.gz"},"service_name" : "", "component_name":"", "hosts":"server1,server2"}}' http://ambari-server:8080/api/v1/clusters/<clustername>/requests To resolve this i added below as per from your above sample: -d '{"RequestInfo":{"context":"Execute an action", "action" : "stream_file", "parameters" : {"file" : "/hadoop01/hdfs.tar.gz"}},"Requests/resource_filters":[{"service_name" : "", "component_name":"", "hosts":"server1,server2"}]}' http://ambari-server:8080/api/v1/clusters/<clustername>/requests But when i submit this, even though the command goes to only the required hosts, it just goes into hung state (grey colored gears - Execution doesn't start at all.) Any idea on what might be blocking the execution ? With Regards, Narendra To the users who will come here in future, the parameter you passed will be available from the configs (config = Script.get_config()) inside your code and at config['roleParams']['my_input'] to be precise.
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