C. Scott Andreas updated CASSANDRA-7530:
    Component/s: Repair

> Repair should be allowed in mixed version clusters
> --------------------------------------------------
>                 Key: CASSANDRA-7530
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-7530
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Repair
>            Reporter: Jeremiah Jordan
>            Priority: Major
>              Labels: ponies
> As we try to improve the ops experience for large clusters (or cautious 
> people), we need to make it so repair works across major version upgrades.
> Currently you have to be able to upgrade all of your nodes and then run a 
> full repair, within the gc_grace window.
> The recent ability to stream old sstables makes this a little better, as you 
> don't have to also run upgradesstables first.
> It would be really good if we could let people pause their upgrade of 1000 
> nodes to run some repairs.  Or to upgrade one DC and test the new major 
> version for a while (while still running repairs).

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