I would also add that Drill uses a file system (local, DFS, ...) to store views.
> On Oct 21, 2014, at 5:31 PM, Aditya <[email protected]> wrote: > > On Tue, Oct 21, 2014 at 5:15 PM, Mohit Anchlia <[email protected]> > wrote: > >> So what I see in the architectural overview page is one of the data sources >> to drill? Where does drill store all metadata information? > > Drill does not have a centralized metadata store. It discovers schema on > the fly > from the data. That being said, it can work with data sources which have > defined > meta data, for example hive. > > >> >> When using hadoop with drill is it recommended to install drill on hadoop >> node to take advantage of data locality? > > Definitely. Drill uses the locality information to schedule work on > appropriate > node.
