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From Shane Hansen <>
Subject Re: Cassandra Scaling Alerts
Date Tue, 22 Jul 2014 21:59:32 GMT
I would look at load (disk space used) and system.compactions_in_progress.

On Tue, Jul 22, 2014 at 3:49 PM, Arup Chakrabarti <>

> We have been going through and setting up alerts on our Cassandra
> clusters. We have catastrophic alerts setup to let us know when things are
> super broken, but we are now looking at setting up alerts for letting us
> know when we need to start scaling vertically or horizontally.
> We have alerts on our system metrics. What are the recommended metrics
> from the JMX that are strong indicators of needing to scale?

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