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Posted to dev@kafka.apache.org by "Julian Morrison (JIRA)" <ji...@apache.org> on 2014/07/09 15:43:04 UTC

[jira] [Created] (KAFKA-1532) Move CRC32 to AFTER the payload

Julian Morrison created KAFKA-1532:
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             Summary: Move CRC32 to AFTER the payload
                 Key: KAFKA-1532
                 URL: https://issues.apache.org/jira/browse/KAFKA-1532
             Project: Kafka
          Issue Type: Improvement
          Components: core, producer 
            Reporter: Julian Morrison
            Assignee: Jun Rao
            Priority: Minor


To support streaming a message of known length but unknown content, take the CRC32 out of the message header and make it a message trailer. Then client libraries can calculate it after streaming the message to Kafka, without materializing the whole message in RAM.



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