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https://issues.apache.org/jira/browse/KUDU-2526?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16581588#comment-16581588
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Grant Henke commented on KUDU-2526:
-----------------------------------
I forgot to add that adding the checksums to the blocks means we can only
validate new blocks from when this features is released/enabled. Where the
Cfile approach supports validating data written as far back as Kudu 1.5.0
assuming the feature was not disabled with _cfile_write_checksums=false_.
> Checksum and validate blocks on tablet copy
> -------------------------------------------
>
> Key: KUDU-2526
> URL: https://issues.apache.org/jira/browse/KUDU-2526
> Project: Kudu
> Issue Type: Improvement
> Components: tablet copy
> Reporter: Grant Henke
> Priority: Major
>
> In order to prevent viral corruption in the case that a leader has a corrupt
> CFile, we should checksum (if needed) and verify the blocks while preforming
> a tablet copy.
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