You will only have tombstones in your data if you issue deletes.
What you are seeing is an artifact of the fundamental way Cassandra stores
data. Once data is written to disk it is never modified. If you overwrite a
column value that has already been committed to disk the old value is not
chang
We have a very hot CF which we use essentially as a durable memory cache for
our application. It is about 70MBytes in size after being fully populated. We
completely overwrite this entire CF every few minutes (not delete). Our hope
was that the CF would stay around 70MB in size, but it grows
