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Posted to user@cassandra.apache.org by Oleg Proudnikov <ol...@cloudorange.com> on 2011/02/01 00:07:22 UTC
Re: How to monitor Cassandra's throughput?
Thanks, Aaron!
Is StorageProxy only exposed on the seed node? I consistently see it only on
a single node that happens to be seed.
Oleg
Re: How to monitor Cassandra's throughput?
Posted by Oleg Proudnikov <ol...@cloudorange.com>.
The issue has been resolved, the fix is on Hector's GitHub.
Oleg Proudnikov <olegp <at> cloudorange.com> writes:
>
> I have posted on Hector ML:
>
> http://thread.gmane.org/gmane.comp.db.hector.user/1690
>
> Oleg
>
>
Re: How to monitor Cassandra's throughput?
Posted by Oleg Proudnikov <ol...@cloudorange.com>.
I have posted on Hector ML:
http://thread.gmane.org/gmane.comp.db.hector.user/1690
Oleg
Re: How to monitor Cassandra's throughput?
Posted by David Boxenhorn <da...@lookin2.com>.
You should bring this up in the Hector user group. It sounds like in the
case of a tie, a random winner should be chosen, instead of taking the first
one.
On Tue, Feb 1, 2011 at 5:50 PM, Oleg Proudnikov <ol...@cloudorange.com>wrote:
> Thanks for the insight, Jonathan!
>
> As it turns out using single threaded clients with Hector's
> LeastActiveBalancingPolicy leads to the first node always winning :-)
>
> Is StorageProxy bean the only way to detect this, considering that all
> nodes are
> evenly loaded?
>
> Oleg
>
>
>
>
>
>
Re: How to monitor Cassandra's throughput?
Posted by Oleg Proudnikov <ol...@cloudorange.com>.
Thanks for the insight, Jonathan!
As it turns out using single threaded clients with Hector's
LeastActiveBalancingPolicy leads to the first node always winning :-)
Is StorageProxy bean the only way to detect this, considering that all nodes are
evenly loaded?
Oleg
Re: How to monitor Cassandra's throughput?
Posted by Jonathan Ellis <jb...@gmail.com>.
No, but it will only show up on nodes that are handling Thrift connections.
(This is a sign you should do a better job distributing the clients
around your cluster. :)
On Mon, Jan 31, 2011 at 5:07 PM, Oleg Proudnikov <ol...@cloudorange.com> wrote:
> Thanks, Aaron!
>
> Is StorageProxy only exposed on the seed node? I consistently see it only on
> a single node that happens to be seed.
>
> Oleg
>
>
>
>
>
>
>
>
>
--
Jonathan Ellis
Project Chair, Apache Cassandra
co-founder of DataStax, the source for professional Cassandra support
http://www.datastax.com