On Fri, Sep 16, 2016 at 11:29 AM, Li, Guangxing <guangxing...@pearson.com>
wrote:

> Hi,
>
> I have a 3 nodes cluster, each with less than 200 GB data. Currently all
> nodes have the default 256 value for num_tokens. My colleague told me that
> with the data size I have (less than 200 GB on each node), I should change
> num_tokens to something like 32 to get better performance, especially speed
> up the repair time. Do any of you guys have experience on
>

It's not enough to know the volume size, it's important to know the amount
of keys which effect the merkle tree. I wouldn't change it, I doubt you'll
see a significant difference in repair speed and if you'll grow the cluster
you would want to have enough vnodes.


> this? I am running Cassandra Community version 2.0.9. The cluster resides
> in AWS. All keyspaces have RC 3.
>
> Thanks.
>
> George.
>

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