On Tue, Jul 13, 2010 at 4:19 AM, Thomas Downing <tdown...@proteus-technologies.com> wrote: > On a related note: I am running some feasibility tests looking for > high ingest rate capabilities. While testing Cassandra the problem > I've encountered is that it runs out of file handles during compaction.
This usually just means "increase the allowed fh via ulimit/etc." Increasing the memtable thresholds so that you create less sstables, but larger ones, is also a good idea. The defaults are small so Cassandra can work on a 1GB heap which is much smaller than most production ones. Reasonable rule of thumb: if you have a heap of N GB, increase both the throughput and count thresholds by N times. -- Jonathan Ellis Project Chair, Apache Cassandra co-founder of Riptano, the source for professional Cassandra support http://riptano.com
