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From Jonathan Ellis <>
Subject Re: persistent connection among cluster nodes
Date Tue, 02 Oct 2012 13:06:19 GMT
Yes, look at OutboundTCPConnection.  It only reconnects if there is a
problem.  You can enable TRACE logging on that class to see what it

On Tue, Oct 2, 2012 at 4:52 AM, Niteesh kumar <> wrote:
> while looking at netstat table i observed that my cluster nodes not using
> persistent connection  to talk among themselves on port 9160 to redirect
> request. I also observed that local write latency is around 30-40
> microsecond, while its takes around .5 miliseconds if the chosen node is not
> the node responsible for the key for 50K QPS. I think this attributes to
> connection making time among servers as my servers are on same rack.
> does cassandra support  this feature to maintain persistent connection among
> cluster nodes....

Jonathan Ellis
Project Chair, Apache Cassandra
co-founder of DataStax, the source for professional Cassandra support

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