okay, thanks! On Mon, Sep 26, 2011 at 10:38 PM, Jonathan Ellis <jbel...@gmail.com> wrote:
> compaction throughput doesn't affect flushing or reads > > On Mon, Sep 26, 2011 at 7:40 AM, Yan Chunlu <springri...@gmail.com> wrote: > > I am using the default 16MB when running repair. but the disk io is still > > quite high: > > Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s > avgrq-sz > > avgqu-sz await r_await w_await svctm %util > > sdb 136.00 0.00 506.00 26.00 63430.00 5880.00 > 260.56 > > 101.73 224.38 6.60 4462.62 1.88 100.00 > > Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s > avgrq-sz > > avgqu-sz await r_await w_await svctm %util > > sdb 58.50 21978.00 131.00 122.50 16226.00 52596.00 > 542.97 > > 122.98 870.28 10.02 1790.24 3.94 100.00 > > > > > > > > the rkB/s and wKB/s are almost 60MB, did I misunderstand the meaning of > > compaction throttle? > > > > cassandra version is 0.8.6 > > > > -- > Jonathan Ellis > Project Chair, Apache Cassandra > co-founder of DataStax, the source for professional Cassandra support > http://www.datastax.com >
