Description
OrcFileMetadata internally has filestats, stripestats etc which are allocated in heap. On large data sets, this could have an impact on the heap usage and the memory usage by different executors in LLAP.
Attachments
Attachments
Issue Links
- blocks
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HIVE-17524 instrument LLAP metadata cache with separate counters by format
- Open
- is blocked by
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HIVE-16233 llap: Query failed with AllocatorOutOfMemoryException
- Closed
- is related to
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HIVE-16224 modify off-heap ORC metadata cache after ORC changes
- Open
- relates to
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ORC-159 expose metadata buffer from metadata reader (for caching)
- Open
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ORC-158 do not assume an array-backed buffer in static ReaderImpl methods
- In Progress
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HIVE-16318 LLAP cache: address some issues in 2.2/2.3
- Closed
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ORC-160 expose index read planning in RecordReaderUtils
- Closed
- links to