So sstableloader is a cpu efficient online method of loading data if you already have sstables.
An option you may not have considered is just using batch inserts. It was a surprise to me coming from another database system, but C*'s primary use case is shoving data to an append only log. Is there a faster way to write a chunk of data other than as sequential writes? The only caveat is that there seems to be more parsing overhead (source: jvisualvm) when going the batch writing route, which is why I made sure to mention sstable loader's cpu efficiency. On Thu, Nov 13, 2014 at 5:10 AM, Jonathan Lacefield <jlacefi...@datastax.com > wrote: > Here's another post which is pretty comprehensive for this topic. > http://informationsurvival.blogspot.com/2014/02/cassandra-cql3-integration.html > > > > [image: datastax_logo.png] > > Jonathan Lacefield > > Solution Architect | (404) 822 3487 | jlacefi...@datastax.com > > [image: linkedin.png] <http://www.linkedin.com/in/jlacefield/> [image: > facebook.png] <https://www.facebook.com/datastax> [image: twitter.png] > <https://twitter.com/datastax> [image: g+.png] > <https://plus.google.com/+Datastax/about> > <http://feeds.feedburner.com/datastax> <https://github.com/datastax/> > > On Thu, Nov 13, 2014 at 3:16 AM, Robert Coli <rc...@eventbrite.com> wrote: > >> On Wed, Nov 12, 2014 at 5:19 PM, cass savy <casss...@gmail.com> wrote: >> >>> Sstableloader works well for large tables if you want to move data from >>> Cassandra to Cassandra. This works if both C* are on the same version. >>> >>> Sstable2json and json2sstable is another alternative. >>> >> This post is getting a bit long in the tooth, but is still pretty >> relevant : >> >> http://www.palominodb.com/blog/2012/09/25/bulk-loading-options-cassandra >> >> =Rob >> http://twitter.com/rcolidba >> > >