2012/1/4 Vitalii Tymchyshyn <tiv...@gmail.com> > 04.01.12 14:25, Radim Kolar написав(ла): > > > So, what are cassandra memory requirement? Is it 1% or 2% of disk data? >> It depends on number of rows you have. if you have lot of rows then >> primary memory eaters are index sampling data and bloom filters. I use >> index sampling 512 and bloom filters set to 4% to cut down memory needed. >> > I've raised index sampling and bloom filter setting seems not to be on > trunk yet. For me memtables is what's eating heap :( > > Hello, all.
I've found out and fixed the problem today (after one my node OOMed constantly replaying heap on start-up). full-key deletes are not accounted and so column families with delete-only operations are not flushed. Here is Jira: https://issues.apache.org/jira/browse/CASSANDRA-3741 and my pull request to fix it: https://github.com/apache/cassandra/pull/5 Best regards, Vitalii Tymchyshyn
