> What happened is this: > You started your cluster with only one node, so at first, all data was on > this. > Then you added a second node. Cassandra then moved (approximatively) > half of the data to the second node. In theory, at that > point the data that was moved to the second node could be removed from > the first node (since you had RF=1). However, Cassandra > don't do that removing part automatically for safety reasons. You'll > have to run cleanup on the first node for that to happen. > So there was stale data on the first node, that never got updated > because the first node was not responsible anymore for that data.
But this doesn't explain why he was able to read the stale data? Or did I miss something about actually having removed the second node from the ring after it was shut off? -- / Peter Schuller
