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From "Hiller, Dean" <Dean.Hil...@nrel.gov>
Subject temporarily running a cassandra side by side in production
Date Wed, 10 Jul 2013 23:37:55 GMT
We have a 12 node production cluster and a 4 node QA cluster.  We are starting to think we
are going to try to run a side by side cassandra instance in production while we map/reduce
from one cassandra into the new instance.  We are intending to do something like this

Modify all ports in cassandra.yaml and the jmx port in cassandra-env.sh, 7000, 7001, 9160,
9042, and cassandra-env 7199.

Can I assume a cassandra instance will not only bind to the new ports when I change these
values but will talk to the other cassandra nodes on those same ports as well such that this
cassandra instance is completely independent of my other cassandra instance?

Are there other gotchas that I have to be aware of?

(we are refactoring our model into a new faster model that we tested in QA with live data
as well as moving randompartitioner to murmur)

Thanks,
Dean



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