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dropDuplicates inside foreachBatch

Brad
Contributor

Hi,

If I use dropDuplicates inside foreachBatch, the dropDuplicates will become stateless and no state. It just drop duplicates for the current micro batch so I don't have to specify watermark. Is this true?

Thanks

1 ACCEPTED SOLUTION

Accepted Solutions

szymon_dybczak
Contributor III

Hi @Brad ,

Yes, you are correct. foreachBatch operates on a single batch at time, so you can safely use drop duplicates without worrying about state management.

View solution in original post

1 REPLY 1

szymon_dybczak
Contributor III

Hi @Brad ,

Yes, you are correct. foreachBatch operates on a single batch at time, so you can safely use drop duplicates without worrying about state management.

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