About
The mode of Hive refers to the type of metastore database:
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Type
Local
Running in local mode, means that Hive will use an embedded database (ie Derby).
This mode is mainly used for unit tests because only one process can connect to the derby database at a time.
Remote
Remote Metastore Database. ie traditional standalone RDBMS server.
Configuration
if the configuration hive.metastore.uris is:
- empty: local mode
- non-empty: remote mode
See Hive - Metastore