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From Dominik Keil <>
Subject Re: Strategy tools for taking snapshots to load in another cluster instance
Date Wed, 18 Nov 2015 11:37:57 GMT
Hi Anishek,

we are currently also thinking about how to do this in the midterm,
though we don't have a test setup yet. My idea was do add one additional
node to the source cluster but put it in a different DC as far as
Cassandra is concerned. Using the network topology replication strategy
you'd assign this DC an RF of 1 for each KS. Obviously you probably want
to read and write in LOCAL_QUORUM them to not hamper performance and you
need more disk space on that machine. But then, I think, you can just
take a snapshot there and use sstableloader to load that into your
destination cluster. Since I haven't tried this yet, I cannot tell you
hoe feasible this is but it would be nice to get some input here if the
idea is at least sound :-)


Am 18.11.2015 um 11:23 schrieb Anishek Agarwal:
> Hello
> We have 5 node prod cluster and 3 node test cluster. Is there a way i
> can take snapshot of a table in prod and load it test cluster. The
> cassandra versions are same. 
> Even if there is a tool that can help with this it will be great.
> If not, how do people handle scenarios where data in prod is required
> in staging/test clusters for testing to make sure things are correct ?
> Does the cluster size have to be same to allow copying of relevant
> snapshot data etc? 
> thanks
> anishek

*Dominik Keil*
Movilizer GmbH
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