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From Yang <teddyyyy...@gmail.com>
Subject Re: 15 seconds to increment 17k keys?
Date Thu, 01 Sep 2011 01:31:00 GMT
1ms per add operation is the general order of magnitude I have seen with my
tests.



On Wed, Aug 31, 2011 at 6:04 PM, Ian Danforth <idanforth@numenta.com> wrote:

> All,
>
>  I've got a 4 node cluster (ec2 m1.large instances, replication = 3)
> that has one primary counter type column family, that has one column
> in the family. There are millions of rows. Each operation consists of
> doing a batch_insert through pycassa, which increments ~17k keys. A
> majority of these keys are new in each batch.
>
>  Each operation is taking up to 15 seconds. For our system this is a
> significant bottleneck.
>
>  Does anyone know if this write speed is expected?
>
> Thanks in advance,
>
>  Ian
>

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