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https://issues.apache.org/jira/browse/KAFKA-624?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13530232#comment-13530232
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John Fung commented on KAFKA-624:
---------------------------------

Currently, the migration tool testcases (9001 ~ 9006) data match validation is 
comparing the checksums between the messages from 07 ProducerPerformance 
(Source cluster) & 08 ConsoleConsumer (Target cluster).

This validation is not accurate because of the followings:
1. For a specific message produced by 07 ProducerPerformance, the checksum will 
not be equal to the checksum from the same message received by 08 
ConsoleConsumer. This is verified in a separate test. So it is not possible to 
match a checksum between Producer side and Consumer side
2. There is a possibility that the values of two messages (random bytes) from 
07 ProducerPerformance could be the same when there are a lot of messages 
produced.
                
> Add 07 ConsoleConsumer to validate message content for Migration Tool 
> testcases
> -------------------------------------------------------------------------------
>
>                 Key: KAFKA-624
>                 URL: https://issues.apache.org/jira/browse/KAFKA-624
>             Project: Kafka
>          Issue Type: Task
>            Reporter: John Fung
>            Assignee: John Fung
>


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