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https://issues.apache.org/jira/browse/CASSANDRA-14897?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jason Brown updated CASSANDRA-14897:
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Reviewer: Jason Brown
> In mixed 3.x/4 version clusters write tracing and repair history information
> without new columns
> ------------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-14897
> URL: https://issues.apache.org/jira/browse/CASSANDRA-14897
> Project: Cassandra
> Issue Type: Bug
> Components: Distributed Metadata
> Reporter: Ariel Weisberg
> Assignee: Ariel Weisberg
> Priority: Major
> Labels: 4.0-pre-rc-bugs
> Fix For: 4.0
>
> Attachments: 14897.diff
>
>
> In CASSANDRA-14841 I stopped it from writing to those tables so it wouldn't
> generate any errors. Aleksey pointed out I could write just the old columns.
> If a user manually adds the new columns to the old version nodes before
> upgrade they will be able to query this information across the cluster. This
> is a better situation then making it completely impossible for people to run
> repairs or perform tracing in mixed version clusters.
> This would avoid breaking repair and tracing in mixed version clusters.
> I also want to properly document how to do this and maybe even provide a
> script people can run to add the columns to old nodes.
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