as I asked earlier: http://cassandra-user-incubator-apache-org.3065146.n2.nabble.com/how-does-compaction-throughput-kb-per-sec-affect-disk-io-td6831711.html
might not directly throttle the disk I/O? it would be easy if ionice could work with cassandra. not sure it is because of jvm or something else, ionice works perfectly with "cp" or "mv" to make the disk I/O very smooth. thanks! On Tue, Oct 11, 2011 at 3:15 PM, Peter Schuller <peter.schul...@infidyne.com > wrote: > > so how about disk io? is there anyway to use ionice to control it? > > I have tried to adjust the priority by "ionice -c3 -p [cassandra pid]. > > seems not working... > > Compaction throttling (and in 1.0 internode streaming throttling) both > address disk I/O. > > -- > / Peter Schuller (@scode on twitter) >
