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From Jonathan Ellis <>
Subject Re: Backup and restore between different node-sized clusters
Date Wed, 08 May 2013 23:20:47 GMT
You want to use sstableloader when the cluster sizes are different; it
will stream things to the right places in the new one.

On Wed, May 8, 2013 at 6:03 PM, Ron Siemens <> wrote:
> I have a 3-node cluster in production and a single-node development cluster.  I tested
snapshotting a column family from the 3-node production cluster, grouping the files together,
and restoring onto my single node development system.  That worked fine.  Can I go the other
direction?  It's not easy for me to test in that direction: I'll get the chance at some point
but would like to hear if you've done this.
> If I just put the snapshot from the single node cluster on one of the nodes from the
3-node cluster, and do a JMX loadNewSSTables on that node, will the data load correctly into
the 3-nodes?  Or is something more complex involved?
> FYI, I'm following the instructions below, but only doing per column family backup and
> Thanks,
> Ron

Jonathan Ellis
Project Chair, Apache Cassandra

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