[CASSANDRA-7530] Repair should be allowed in mixed version clusters

• Type: Improvement
• Status: Open
• Priority: Normal
• Resolution: Unresolved
• Component/s: Consistency/Repair
• Labels: ponies
• Assignee: Unassigned
• Reporter: Jeremiah Jordan
• Created: 09/Jul/14 20:52
• Updated: 09/Nov/22 10:58

Description

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).

Issue Links

• depends upon: CASSANDRA-8110 Make streaming forward & backwards compatible
• is duplicated by: CASSANDRA-8333 Streaming Error during repair