GitHub user jihoonson opened a pull request:
TAJO-1715: Precompute the hash value of various kinds of ids
- Statically maintaining the hash value in TaskId and TaskAttemptId
- This is because, unlike QueryId and ExecutionBlockId, it is expected there are many tasks and their attempts.
- Improving TupleMap.put()
- Copying tuple is expensive, so I implemented the clone() method for KeyTuple.
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$ git pull https://github.com/jihoonson/tajo-2
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This closes #658
Author: Jihoon Son <firstname.lastname@example.org>