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From Ryu Kobayashi <beter....@gmail.com>
Subject Re: Consistency Level throughput
Date Fri, 27 May 2011 04:35:37 GMT
My question is my throughput per case.

> In general, cluster throughput = single node throughput * number of
> nodes / replication factor.

Yes, I think so too.
But I really want to ask is there are no results.

Could you look at the chart I made it?

http://goo.gl/mACQa


2011/5/27 Maki Watanabe <watanabe.maki@gmail.com>:
> 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.
>
> maki
>
> 2011/5/27 Ryu Kobayashi <beter.max@gmail.com>:
>> 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?
>>
>> --
>>  <beter.max@gmail.com>
>> twitter:@ryu_kobayashi
>>
>
>
>
> --
> w3m
>



-- 
 <beter.max@gmail.com>
twitter:@ryu_kobayashi

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