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From Maki Watanabe <>
Subject Re: Consistency Level throughput
Date Fri, 27 May 2011 03:41:48 GMT
I assume your question is on that "how CL will affects on the throughput".

In theory, I believe CL will not affect on the throughput of the
Cassandra system.
In any CL, the coordinator node needs to submit write/read requests
along the RF specified for the KS.
But for the latency, CL will affects on.  Stronger CL will cause larger latency.
In the real world, it will depends on system configuration,
application design, data, and all of the environment.
However if you found shorter latency with stronger CL, there must be
some reason to explain the behavior.


2011/5/27 Ryu Kobayashi <>:
> Hi,
> Question of Consistency Level throughput.
> Environment:
> 6 nodes. Replication factor is 3.
> ONE and QUORUM it was not for the throughput difference.
> ALL just extremely slow.
> Not ONE had only half the throughput.
> ONE, TWO and THREE were similar results.
> Is there any difference between 2 nodes and 3 nodes?
> --
>  <>
> twitter:@ryu_kobayashi


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