Repair should never reuse a tree
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Key: CASSANDRA-640
URL: https://issues.apache.org/jira/browse/CASSANDRA-640
Project: Cassandra
Issue Type: Bug
Affects Versions: 0.5
Reporter: Stu Hood
Fix For: 0.5
AEService currently 'caches' MerkleTrees that have been generated by the local
node, and can respond to a request for a tree with a cached version. This means
that despite possibly having performed a repair, the two nodes will still be
holding cached trees, and can respond to one another with the cached version,
resulting in redundant repairs.
Rather than a cache, the map of trees is intended to be a rendezvous point for
two nodes to exchange relatively up-to-date trees. A map still might work, but
other synchronization objects should be explored.
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