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From Philippe <watche...@gmail.com>
Subject Re: Writes slower then reads
Date Thu, 05 Jan 2012 11:02:04 GMT
What can you see in vmstat/dstat ?
Le 5 janv. 2012 11:58, "R. Verlangen" <robin@us2.nl> a écrit :

> Hi there,
>
> I'm running a cassandra 0.8.6 cluster with 2 nodes (in 2 DC's), RF = 2.
> Actual data on the nodes is only 1GB. Disk latency < 1ms. Disk throughput ~
> 0.4MB/s. OS load always below 1 (on a 8 core machine with 16GB ram).
>
> When I'm running my writes against the cluster with cl = ONE all reads
> appear to be faster then the writes.
>
> Average write speed = 1600us/operation
> Average read speed = 200us/operation
>
> I'm really wondering why this is the case. Anyone got a clue?
>
> With kind regards,
> Robin
>

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