Have you read the DataStax documentation?
http://docs.datastax.com/en/cassandra/2.0/cassandra/operations/ops_snapshot_restore_new_cluster.html


From: Romain Hardouin [mailto:romainh...@yahoo.fr]
Sent: Wednesday, November 18, 2015 3:59 PM
To: user@cassandra.apache.org
Subject: Re: Strategy tools for taking snapshots to load in another cluster 
instance

You can take a snapshot via nodetool then load sstables on your test cluster 
with sstableloader:
docs.datastax.com/en/cassandra/2.1/cassandra/tools/toolsBulkloader_t.html



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________________________________
From:"Anishek Agarwal" <anis...@gmail.com<mailto:anis...@gmail.com>>
Date:Wed, Nov 18, 2015 at 11:24
Subject:Strategy tools for taking snapshots to load in another cluster instance
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



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