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From Anishek Agarwal <>
Subject Re: Cassandra nodes reduce disks per node
Date Wed, 17 Feb 2016 07:30:17 GMT
Additional note we are using cassandra 2.0.15 have 5 nodes in cluster ,
going to expand to 8 nodes.

On Wed, Feb 17, 2016 at 12:59 PM, Anishek Agarwal <> wrote:

> Hello,
> We started with two 800GB SSD on each cassandra node based on our initial
> estimations of read/write rate. As we started on boarding additional
> traffic we find that CPU is becoming a bottleneck and we are not able to
> run the NICE jobs like compaction very well. We have started expanding the
> cluster and this would lead to less data per node. It looks like at this
> point once we expand the cluster, the current 2 X 800 GB SSD will be too
> much and it might be better to have just one SSD.
> To accomplish this can I just copy the data from disk1 to disk2 with in
> the relevant cassandra home location folders, change the cassanda.yaml
> configuration and restart the node. before starting i will shutdown the
> cluster.
> Thanks
> anishek

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