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How the hive metastore works

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author-rank joncodin
Rising Star

Created ‎03-20-2016 04:19 PM

I have some hive tables with data. And now I will use spark sql to query this data.

But Im not understanding the role of a Hive component in this process, the Hive Metastore.

The Hive Metastore stores all info about the tables. And we can execute spark sql queries because spark can interact with Hive Metastore.

But, how that works, its automatic? I have the hive tables with data, now to execute spark sql queries I need to create the Hive Metastore? Or its automatic? We need to do something?

Im relatively new in Hive and Im not understanding well this concept in this scenario.

Thanks!!

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