Details
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New Feature
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Status: Open
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Major
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Resolution: Unresolved
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0.14.0
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None
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None
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HDP 2.2
Description
Feature request to add Hive HQL Snapshots against tables / databases that save the Hive metadata, analagous to HDFS snapshots for storage.
Currently HDFS snapshots do not address the loss of Hive Metadata if a Hive user were to drop a table - it would need to be re-entered manually from HQL scripts as well as HDFS snapshot data restored.
Hive Snapshots should ideally be tightly coupled with HDFS snapshots so a single HQL command would trigger a simulatenous snapshot of the table HDFS data and Hive Metadata.
These snapshots should be visible from Hive shell / beeline session and able to restore both HDFS data and Hive Metadata in a single Hive command.
Regards,
Hari Sekhon
http://www.linkedin.com/in/harisekhon