With Level compaction, you will have some data which could not be reclaimed with gc grace=0 because it has not compacted yet. For this you might want to look at tombstone_threshold
On Wed, Jan 8, 2014 at 10:31 AM, Tyler Hobbs <ty...@datastax.com> wrote: > > On Wed, Jan 1, 2014 at 7:53 AM, Robert Wille <rwi...@fold3.com> wrote: > >> >> Also, for this application, it would be quite reasonable to set gc grace >> seconds to 0 for these tables. Zombie data wouldn’t really be a problem. >> The background process that cleans up orphaned browse structures would >> simply re-delete any deleted data that reappeared. >> > > If you can set gc grace to 0, that will basically eliminate your tombstone > concerns entirely, so I would suggest that. > > > -- > Tyler Hobbs > DataStax <http://datastax.com/> >
