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From Zhu Han <>
Subject Re: compaction behaviour
Date Sun, 03 Apr 2011 12:01:50 GMT
best regards,
Zhu Han

On Sun, Apr 3, 2011 at 9:21 AM, Anurag Gujral <>wrote:

> Hi All,
>            I have loaded data into cassandra using batch processing  the
> response times for reads are in the range of  0.8 ms but I am using SSDs. so
> I expect the read times to be even faster.

Does your working set fit in the memory? If so, SSD is not helpful to reduce
the latency.

> Every time I run compaction the latency numbers reduce to 0.3 to 0.4ms  ,
> is there a way I can run compaction once with some parameters
> so that i can get the same numbers 0.3 to 0.4 ms for reads.
> Please note that I am not loading the data again.
> Thanks
> Anurag

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