Eugene Koifman created HIVE-12403:
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Summary: Too many delta files during Compaction - OOM Part Deux
Key: HIVE-12403
URL: https://issues.apache.org/jira/browse/HIVE-12403
Project: Hive
Issue Type: Bug
Components: Transactions
Affects Versions: 1.3.0
Reporter: Eugene Koifman
Assignee: Eugene Koifman
HIVE-11540 solution is somewhat incomplete.
Suppose hive.compactor.max.num.delta=10 and there are 1000 delta files to
compact.
CompactorMR will currently run 100 jobs on 10 files each to create 100 wider
delta files but then it will run 1 job which will include 100 of the wider
deltas.
it's a simple fix to make sure the max.num.delta is always respected
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