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Hi BalaJi - I can only re-iterate what Vijay has mentioned in the previous thread - you need to ensure your data does not have duplicates upstream. Once your data in Kafka is free of duplicates, Druid will do exactly once ingestion. If you are still seeing duplicates, ensure you are not resetting the ingestion manually or using the

resetOffsetAutomatically: true

flag. This flag needs to be false so we are not re-ingesting data inadvertently