In addition to the suggestions by Jonathan, you can run a user defined compaction against a particular set of SSTable files, where you want to remove tombstones.
But to do that, you need to find such an optimal set. Here you can find a couple of helpful tools. https://github.com/cloudian/support-tools On Mon, Mar 10, 2014 at 7:41 PM, Oleg Dulin <oleg.du...@gmail.com> wrote: > I get that :) > > What I'd like to know is how to fix that :) > > > On 2014-03-09 20:24:54 +0000, Takenori Sato said: > > You have millions of org.apache.cassandra.db.DeletedColumn instances on >> the snapshot. >> >> This means you have lots of column tombstones, and I guess, which are >> read into memory by slice query. >> >> >> On Sun, Mar 9, 2014 at 10:55 PM, Oleg Dulin <oleg.du...@gmail.com> wrote: >> I am trying to understand why one of my nodes keeps full GC. >> >> I have Xmx set to 8gigs, memtable total size is 2 gigs. >> >> Consider the top entries from jmap -histo:live @ >> http://pastebin.com/UaatHfpJ >> >> -- >> Regards, >> Oleg Dulin >> http://www.olegdulin.com >> > > > -- > Regards, > Oleg Dulin > http://www.olegdulin.com > > >
