Do you have trickle_fsync enabled? Try to enable that and see if it solves your problem, since you are getting out of non-heap memory.
Another question, is always the same nodes that die? Or is 2 out of 4 that die? Regards, Carlos Juzarte Rolo Cassandra Consultant Pythian - Love your data rolo@pythian | Twitter: cjrolo | Linkedin: *linkedin.com/in/carlosjuzarterolo <http://linkedin.com/in/carlosjuzarterolo>* Tel: 1649 www.pythian.com On Thu, Feb 19, 2015 at 10:49 AM, Michał Łowicki <mlowi...@gmail.com> wrote: > > > On Thu, Feb 19, 2015 at 10:41 AM, Carlos Rolo <r...@pythian.com> wrote: > >> So compaction doesn't seem to be your problem (You can check with >> nodetool compactionstats just to be sure). >> > > pending tasks: 0 > > >> >> How much is your write latency on your column families? I had OOM related >> to this before, and there was a tipping point around 70ms. >> > > Write request latency is below 0.05 ms/op (avg). Checked with OpsCenter. > > >> >> -- >> >> >> >> > > > -- > BR, > Michał Łowicki > -- --
