Thank you for the swift response. Cem.
On Sun, Mar 11, 2012 at 11:03 PM, Peter Schuller < peter.schul...@infidyne.com> wrote: > > I am using TTL 3 hours and GC grace 0 for a CF. I have a normal CF that > has > > records with TTL 3 hours and I dont send any delete request. I just > wonder > > if using GC grace 0 will cause any problem except extra Memory/IO/network > > load. I know that gc grace is for not transferring deleted records after > a > > down node comes back. So I assumed that transferring expired records > will > > not cause any problem. > > > > Do you have any idea? Thank you! > > If you do not perform any deletes at all, a GC grace of 0 should be > fine. But if you don't, the GC grace should not really be relevant > either. So I suggest leaving GC grace high in case you do start doing > deletes. > > Columns with TTL:s will disappear regardless of GC grace. > > If you do decide to run with short GC grace, be aware of the > consequencues: > http://wiki.apache.org/cassandra/Operations#Dealing_with_the_consequences_of_nodetool_repair_not_running_within_GCGraceSeconds > > -- > / Peter Schuller (@scode, http://worldmodscode.wordpress.com) >
