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Posted to issues@spark.apache.org by "Shixiong Zhu (JIRA)" <ji...@apache.org> on 2018/12/04 19:26:00 UTC

[jira] [Created] (SPARK-26267) Kafka source may reprocess data

Shixiong Zhu created SPARK-26267:
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             Summary: Kafka source may reprocess data
                 Key: SPARK-26267
                 URL: https://issues.apache.org/jira/browse/SPARK-26267
             Project: Spark
          Issue Type: Bug
          Components: Structured Streaming
    Affects Versions: 2.4.0
            Reporter: Shixiong Zhu


Due to KAFKA-7703, when the Kafka source tries to get the latest offset, it may get an earliest offset, and then it will reprocess messages that have been processed when it gets the correct latest offset in the next batch.

This usually happens when restarting a streaming query.



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