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https://issues.apache.org/jira/browse/HBASE-11715?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14098953#comment-14098953
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Alex Newman commented on HBASE-11715:
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It's too bad we can just compare the blooms. Merkle trees are probably the
wrong thing in the sense that all you would do is compare the merkle value.
They would already be calculated.
> HBase should provide a tool to compare 2 remote tables.
> -------------------------------------------------------
>
> Key: HBASE-11715
> URL: https://issues.apache.org/jira/browse/HBASE-11715
> Project: HBase
> Issue Type: New Feature
> Components: util
> Reporter: Jean-Marc Spaggiari
>
> As discussed in the mailing list, when a table is copied to another cluster
> and need to be validated against the first one, only VerifyReplication can be
> used. However, this can be very long since data need to be copied again.
> We should provide an easier and faster way to compare the tables.
> One option is to calculate hashs per ranges. User can define number of
> buckets, then we split the table into this number of buckets and calculate an
> hash for each (Like partitioner is already doing). We can also optionally
> calculate an overall CRC to reduce even more hash collision.
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