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What are the different modes in which we can run Hive?

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We can  run  Hive in following modes:

1. Local mode: In Hive local mode, Map Reduce jobs related to Hive run  locally on a user machine. This  is the default mode in which Hadoop uses local file system.


2. Distributed Mode: In this mode, Hive as well as Hadoop is running in a fully distributed mode.

NameNode, DataNode, JobTracker, TaskTracker etc run on different machines in this mode.

3. Pseudo-distributed Mode: This is the mode used by developers to test the code before deploying to production. In this mode, all the daemons run  on same virtual machine. With this mode, we can quickly write


scripts and test on limited data sets.


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