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From Alexandru Dan Sicoe <>
Subject Re: exporting data from Cassandra cluster
Date Fri, 09 Dec 2011 13:09:37 GMT
Hi Jeremiah,
 The thing is I will send the data to a massive storage facility (I don't
know what's behind the scenes) so I won't be backing up on one machine
where I can install Cassandra. Does the sstable loader work just for
copying data from a Cassandra cluster to somewhere on a disk where there is
no Cassandra instance? If not what is the best way/tool to achieve that?


On Wed, Dec 7, 2011 at 10:00 PM, Jeremiah Jordan <> wrote:

> Stop your current cluster.  Start a new cassandra instance on the machine
> you want to store your data on.  Use the sstable loader to load the
> sstables from all of the current machines into the new machine.  Run major
> compaction a couple times.  You will have all of the data on one machine.
> On 12/07/2011 10:17 AM, Alexandru Dan Sicoe wrote:
>> Hello everyone.
>>  3 node Cassandra 0.8.5 cluster. I've left the system running in
>> production environment for long term testing. I've accumulated about 350GB
>> of data with RF=2. The machines I used for the tests are older and need to
>> be replaced. Because of this I need to export the data to a permanent
>> location. How should I export the data? In order to reduce the storage spac
>> I want to export only the non-replicated data? I mean, just one copy of the
>> data (without the replicas). Is this possible? How?
>> Cheers,
>> Alexandru

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