ZhangYao created KUDU-2502:
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Summary: Support for undo compaction when keeping long history of
data
Key: KUDU-2502
URL: https://issues.apache.org/jira/browse/KUDU-2502
Project: Kudu
Issue Type: New Feature
Reporter: ZhangYao
In some case table will update frequently, but we want to keep long history
of data and don't need fine-grained version. If simply increase the undo gc
time, there will be a lot of undo deltas which occupy too much disk space and
degrade the scan performance. So we can implement an undo compaction opt to
compact undo file in compaction interval we set to offset the negative
influence.
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