apache / kylin / 5012

28%

master: 28%

Pull #838

travis-ci

KYLIN-4167 Refactor streaming coordinator

1. Currently, coordinator has too many responsibility, which violate single responsibility principle, and it not easy for extension, a good separation of responsibilities is a recommended way
2. Some cluster level operation has no atomicity guarantee, we should implement then in idempotent way to achieve final consistency
3. Resubmit when job was discarded
4. Clarify overall design for realtime OLAP

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