> Short version: Once GCGraceSeconds expires, the tombstone is no longer > relevant as will not be included in RR (otherwise, you could have > nodes that haven't compacted yet, RR tombstones to other replicas that > had removed it). Long version: see my last comment on > https://issues.apache.org/jira/browse/CASSANDRA-1316.
Subtle, indeed. I've attempted to document this here: http://wiki.apache.org/cassandra/Operations#Frequency_of_nodetool_repair http://wiki.apache.org/cassandra/Operations#Dealing_with_the_consequences_of_nodetool_repair_not_running_within_GCGraceSeconds -- / Peter Schuller
