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Repair Improvements in Apache Cassandra 4.0

The Anti-Entropy process used by nodetool repair is the way of ensuring consistency of data on disk. Incremental repair was introduced in Cassandra 2.1 to speed up the operation but in Cassandra 3.11 it is still subject to bugs that can severely impact a production cluster stability. In this talk, we will detail how incremental repair was fixed for the upcoming 4.0 release of Apache Cassandra.



Alexander Dejanovski

at DataStax