To load the data from MapR to Vetica rapidly, MapR POSIX client (not free license) is required? Do we have any best practice to accelerate the process of External table with MapR 5.X?
Take a peek at the "Integrating Vertica with the MapR Distribution of Hadoop" online doc. It explains the three ways that you can integrate Vertica with MapR
Can't find what you're looking for? Search the Vertica Documentation, Knowledge Base, or Blog for more information.