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https://issues.apache.org/jira/browse/CASSANDRA-18836?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17763895#comment-17763895
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Maxim Muzafarov commented on CASSANDRA-18836:
---------------------------------------------

I can take a look after I finish with CASSANDRA-16360
There are a few places where CRC32 is still used, but the main concern is that 
it can affect backward compatibility, so it should be carefully considered.

> Replace CRC32 w/ CRC32C in IndexFileUtils.ChecksummingWriter
> ------------------------------------------------------------
>
>                 Key: CASSANDRA-18836
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-18836
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Feature/2i Index, Feature/SAI
>            Reporter: Caleb Rackliffe
>            Priority: Normal
>
> It seems that now we're on Java 11 for 5.0, there isn't much reason not to 
> use CRC32C as a drop-in replacement for CRC32. SAI isn't even released, so 
> has no binary compatibility entanglements, and this should be pretty 
> straightforward.
> See https://github.com/apache/bookkeeper/pull/3309



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