Removing a Service (2.1.0)
Verified against releases 2.1.0
Note:
These API calls do not uninstall the packages associated with the
service and neither they remove the config or temp folders associated
with the service components.
Before the PUT or DELETE calls, you can do a GET to ensure that the API is referring to a valid resource.
1.Note all the host components associated with the service.
curl -u admin:admin -H "X-Requested-By: ambari"-X GET http://AMBARI_SERVER_HOST:8080/api/v1/clusters/c1/services/SERVICENAME
2.Ensure the service is stopped(you can use the Ambari Web-UI to stop the service as well)
Stop the whole service(ensure correct values are provided for AMBARI_SERVER_HOST, SERVICE_NAME):
curl -u admin:admin -H "X-Requested-By: ambari" -X PUT -d '{"RequestInfo":{"context":"Stop Service"},"Body":{"ServiceInfo":{"state":"INSTALLED"}}}' http://AMBARI_SERVER_HOST:8080/api/v1/clusters/c1/services/SERVICE_NAME
Stop individual components (ensure correct values are provided for AMBARI_SERVER_HOST, HOSTNAME, COMPONENT_NAME):
curl -u admin:admin -H "X-Requested-By: ambari" -X PUT -d '{"RequestInfo":{"context":"Stop Component"},"Body":{"HostRoles":{"state":"INSTALLED"}}}' http://AMBARI_SERVER_HOST:8080/api/v1/clusters/c1/hosts/HOSTNAME/host_components/COMPONENT_NAME
Stop all component instances (ensure correct values are provided for AMBARI_SERVER_HOST, SERVICE_NAME, COMPONENT_NAME) -just another way to stop Service members:
curl -u admin:admin -H "X-Requested-By: ambari" -X PUT -d '{"RequestInfo":{"context":"Stop All Components"},"Body":{"ServiceComponentInfo":{"state":"INSTALLED"}}}' http://AMBARI_SERVER_HOST:8080/api/v1/clusters/c1/services/SERVICE_NAME/components/COMPONENT_NAME
3.Delete the whole SERVICE
curl -u admin:admin -H "X-Requested-By: ambari" -X DELETE http://AMBARI_SERVER_HOST:8080/api/v1/clusters/c1/services/SERVICENAME
Removing a Host (2.1.0)
Verified against releases 2.1.0
The preferred way to remove a host is to move the master services from the
host, decommission the slave nodes and then remove the hostafterdeleting
all the host components. However, there are situations such as the host
is lost and cannot be brought back online for graceful removal. Under
this circumstances the following API calls can be used to clean up the
host.
1.Get a list of host components mapped to the host
curl -u admin:admin -H "X-Requested-By: ambari" -X GET http://AMBARI_SERVER_HOST:8080/api/v1/clusters/c1/hosts/HOSTNAME
2.DELETE all host components mapped to this host
E.g.Delete DATANODE
curl -u admin:admin -H "X-Requested-By: ambari" -X DELETE http://AMBARI_SERVER_HOST:8080/api/v1/clusters/CLUSTERNAME/hosts/HOSTNAME/host_components/DATANODE
3.DELETE the host
curl -u admin:admin -H "X-Requested-By: ambari" -X DELETE http://AMBARI_SERVER_HOST:8080/api/v1/clusters/CLUSTERNAME/hosts/HOSTNAME
