Tombstone is a marker indicating the record to be deleted.
Is 'garbage collecting tombstones ' a different operation than the JVM GC.
Garbage collecting tombstones is controlled by gc_grace_seconds which
by default is set to 10 days. But the traditional GC seems to happen
much more frequently (when observed through jconsole) ?
How can I force the garbage collecting tombstones to happen ad-hoc
when I want to ?