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From Anishek Agarwal <>
Subject Cassandra nodes reduce disks per node
Date Wed, 17 Feb 2016 07:29:38 GMT

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


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