Sergey Shelukhin created HIVE-9729:
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Summary: LLAP: design and implement proper metadata cache
Key: HIVE-9729
URL: https://issues.apache.org/jira/browse/HIVE-9729
Project: Hive
Issue Type: Sub-task
Reporter: Sergey Shelukhin
Simple approach: add external priorities to data cache, read metadata parts of
orc file into it. Advantage: simple; consistent management (no need to
coordinate sizes and eviction between data and metadata caches, etc);
disadvantage - have to decode every time.
Maybe add decoded metadata cache on top - fixed size, small and opportunistic?
Or some other approach.
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