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The "ArchitectureInternals" page has been changed by JonathanEllis. The comment on this change is: link DistributedDeletes. http://wiki.apache.org/cassandra/ArchitectureInternals?action=diff&rev1=16&rev2=17 -------------------------------------------------- * If a quorum read was requested, !StorageProxy waits for a majority of nodes to reply and makes sure the answers match before returning. Otherwise, it returns the data reply as soon as it gets it, and checks the other replies for discrepancies in the background in !StorageService.doConsistencyCheck. This is called "read repair," and also helps achieve consistency sooner. * As an optimization, !StorageProxy only asks the closest replica for the actual data; the other replicas are asked only to compute a hash of the data. + = Deletes = + * See DistributedDeletes + = Gossip = * based on "Efficient reconciliation and flow control for anti-entropy protocols:" http://www.cs.cornell.edu/home/rvr/papers/flowgossip.pdf * See ArchitectureGossip for more details
