We have an external tool connecting to HDFS. IN order to connect I have provided the Primary Name Node IP for now.
So literally the IP address has been hardcoded.
Following are my questions :
1) whenever I do maintenance(restarts,graceful stop and start) , will it back to the original state i.e Primary and Secondary Name Node services would come back on the same nodes as it was before the maintenance ?
2) Does HDP has any inbuilt DNS service , which I could use instead of Hardcoding the IP/Hostname