> Major compaction does it, but only if GCGraceSeconds has elapsed. See: > > http://spyced.blogspot.com/2010/02/distributed-deletes-in-cassandra.html
But to be clear, under the assumption that your data is a lot smaller than the tombstones, a major compaction will definitely reclaim space even if GCGraceSeconds has not elapsed. So actually my original response is a bit misleading. -- / Peter Schuller
