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  1. Flink
  2. FLINK-2491 Support Checkpoints After Tasks Finished
  3. FLINK-23430

Take snapshots for operator coordinators which all corresponding tasks finished

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      Currently we trigger checkpoints for all operator coordinators irrespective if their corresponding tasks finished or not. This leads e.g. to a precondition in org.apache.flink.runtime.checkpoint.PendingCheckpoint#fulfillFullyFinishedOperatorStates failing

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            gaoyunhaii Yun Gao
            dwysakowicz Dawid Wysakowicz
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