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Jonathan Ellis commented on CASSANDRA-4482: ------------------------------------------- bq. If you've lready xor'd all these together, S does include the hash of your existing row A. Updating A to A' hashes A' Right, I'm saying that given S-including-hash-of-A, what you want is to take A *out* when you add A'. Otherwise, if you have a node that (correctly) has A', but doesn't know about A (maybe it was compacted out before it got to build S), then it won't agree on the same state S even though it has the same data. > In-memory merkle trees for repair > --------------------------------- > > Key: CASSANDRA-4482 > URL: https://issues.apache.org/jira/browse/CASSANDRA-4482 > Project: Cassandra > Issue Type: New Feature > Reporter: Marcus Eriksson > > this sounds cool, we should reimplement it in the open source cassandra; > http://www.acunu.com/2/post/2012/07/incremental-repair.html -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira