The only time I've seen nodetool be that slow is when it was talking to a machine that was either swapping or deep into (JVM) GC storming.
On Wed, Feb 22, 2012 at 3:49 PM, Feng Qu <mail...@gmail.com> wrote: > We noticed that nodetool ring sometimes returns in 17-20 sec while it > normally runs in less than a sec. There were some compaction running when it > happened. Did compaction cause nodetool slowness? Anything else I should > check? >>>> time nodetool -h hostname ring > .... > real 0m17.595s > user 0m0.339s > sys 0m0.054s > > Feng Qu -- Jonathan Ellis Project Chair, Apache Cassandra co-founder of DataStax, the source for professional Cassandra support http://www.datastax.com