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Type:
New Feature
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Status: Resolved
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Priority:
Major
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Resolution: Duplicate
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Affects Version/s: None
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Fix Version/s: None
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Component/s: Query Processor
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Labels:None
Hive currently does not provide any atomicity for a reader/writer.
So, if a reader/writer is running concurrently, the reader may randomly die or even see partial results.
Some kind of synchronization mechanisms (lease, lock in metastore/somewhere else) are needed to manage the above.
This also applies to multiple writers (say multiple load into...)