I have resolved the issue by placing ACTIVEAMBARIHOST with headnode FQDN name as from Edge Node it was not reflecting. ... View more

Changes in system_action_definitions.xml is not picking up by ambari-server even after restart. Even I have kept the <actionName.py> file in the respective diretory. Could you please help me out? ... View more

@Aditya Sirna After going through the Ambari API documentation, what I found that the given curl command to execute the custom script action needs to be modified as I have tested and it's working fine. curl -u <username>:<password> -X POST -H 'X-Requested-By:ambari' -d'{"RequestInfo":{"context":"Execute an action", "action" : "<action_name>"}, "Requests/resource_filters":[{"service_name" : "", "component_name":"", "hosts":"<comma_separated_host_names>"}]}' http://ambari_host:port/api/v1/clusters/cluster_name/requests For specific components manageability: curl -k -i -u <ambari_admin_user>:<ambari_admin_password> -H 'X-Requested-By: ambari' -X POST -d '{"RequestInfo": {"query":"Hosts/host_name.in(<comma separated list of hosts to be added, if one node give only one name>)"}, "Body":{"host_components":[{"HostRoles":{"component_name":"BIGSQL_WORKER"}} ]}}' http://<ambari-host>: <ambari-port>/api/v1/clusters/<cluster_name>/hosts? curl -k -i -u <ambari_admin_user>:<ambari_admin_password> -H 'X-Requested-By: ambari' -X PUT -d '{ "HostRoles": {"state":"INSTALLED" } }' http://<ambari-host>:<ambari-port>/api/v1/clusters/<cluster-name>/host_components?HostRoles/state=INIT ... View more

@Aditya Sirna The mentioned command in the post is not working: curl -u <username>:<password>-X POST -H 'X-Requested-By:ambari'-d'{"RequestInfo":{"context":"Execute an action", "action" : "install_kerberos_package", "service_name" : "", "component_name":"", "hosts":"<comma-separated-hosts>"}}' http://<ambari-host>:<ambari-port>/api/v1/clusters/<cluster-name>/requests I am working in a Azure HDInsight Hadoop Cluster having 2 headnodes [primary and secondary] and 2 worker nodes and 1 edge node. I have configured the script and restarted ambari server to reflect the changes as you've mentioned but want to execute the script specific to primary head node. By executing the command hostname -f, I got the FQDN of that host and execute the following command from edge node: curl -u admin:<password> -X POST -H 'X-Requested-By:ambari' -d'{"RequestInfo":{"context":"Execute an action", "acton" : "validate_nfs_server_export_path", "service_name" : "", "component_name":"", "hosts":"hn0-kalyan.qjhddkgqet0efmcgr4zymppb4e.cx.internal.cloudapp.net"}}' http://headnodehost:8080/api/v1/clusters/cluster_name/requests But when I saw the AMBARI UI, it shows executed on all the all nodes which it should not be. ... View more