February 2019
Beginner to intermediate
544 pages
14h 36m
English
Content preview from Mastering Hadoop 3
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Understanding ACID in HIVE
ACID stands for atomicity, consistency, isolation, and durability. Atomicity means a transaction should complete successfully or else it should fail completely: that is, it should not be left partially. Consistency ensures that any transaction will bring the database from one valid state to another state. Isolation states that every transaction should be independent: that is, one transaction should not affect another. And durability states that if a transaction is completed, it should be preserved in the database even if the machine state is lost or a system failure occurs.
These ACID properties are essential for a transaction and every transaction should ensure that these properties are met:
- Streaming ingest of ...
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