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HoodieDeltaStreamer: allow to commit when the records rdd is empty #806

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eisig
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@eisig eisig commented Jul 26, 2019

We read data from kafka, transform and filter out some records.
In some situation, the whole batch may be filtered out.
If the checkpointStr is not save to commit. the pipeline would loop forever

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Valid point.. But could we generalize to commit when the checkpoint is different ? This way, we dont commit when there is actually no data ..

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Closing in favor of #863

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