I believe that key estimates won't immediately respond to expired TTL, Not until after compaction has completely dropped the records (which will include subtle logic related to gc_grace and partitions with data in multiple SSTables).
On Wed, May 23, 2018 at 6:18 AM Rahul Singh <rahul.xavier.si...@gmail.com> wrote: > If the TTL actually reduces the key count , should. It’s possible to TTL a > row from a partition but not the whole partition. 1 key = 1 partition != 1 > row != 1 cell > > -- > Rahul Singh > rahul.si...@anant.us > > Anant Corporation > > On May 23, 2018, 6:07 AM -0500, Grzegorz Pietrusza <gpietru...@gmail.com>, > wrote: > > Hi > > I'm using tablestats to get estimated number of partitioning keys. In my > case all writes are done with TTL of a few days. Is the key count decreased > when TTL hits? > > Regards > Grzegorz > >