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From Jonathan Ellis <>
Subject Re: nodetool ring runs very slow
Date Thu, 23 Feb 2012 21:19:53 GMT
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 <> 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

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