Hive

Hive Metastore Configurations

In order to store meta data Hive can use any of the below three strategies
– Embedded
– Local
– Remote

Hive – Metastore – Embedded

  • Mainly used for unit tests
  • Only one process is allowed to connect to the metastore at a time
  • Hive metadata is stored in an embedded Apache Derby database

Hive – Metastore – Local

  • Metadata is stored in some other database like MySQL
  • Hive Client will open the connection to datastore and make Hive queries against it

Hive – Metastore – Remote

  • All Hive Clients make a connection to the metastore serverand server queries the datastore for metadata.
  • Metastore server and clients will communicate using Thrift protocol.

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