Thank you Robert and Anuja, It does not seem that sstable2json is the right tool to go: there is no documentation beyond Cassandra 1.2, it requires a specific sstable to be given, which means a lot of manual work.
The documentation also mentions it is good for testing/debugging but I would need to migrate near 1 TB of data from a 6-node cluster to a 3-node one. Neither copying sstables/nodetool refresh seems a great option as well. Unless I am missing something. Using sstableloader seems a more logical option. Still a bottleneck if you need to do it for every node in your source cluster. What if you had a 100-node cluster? Thinking of just running a simple script, instead, that selects data from the source cluster and inserts them to the target one. Kind regards, George On Tue, Dec 1, 2015 at 7:54 AM, anuja jain <anujaja...@gmail.com> wrote: > Hello George, > You can use sstable2json to create the json of your keyspace and then load > this json to your keyspace in new cluster using json2sstable utility. > > On Tue, Dec 1, 2015 at 3:06 AM, Robert Coli <rc...@eventbrite.com> wrote: > >> On Thu, Nov 19, 2015 at 7:01 AM, George Sigletos <sigle...@textkernel.nl> >> wrote: >> >>> We would like to migrate one keyspace from a 6-node cluster to a 3-node >>> one. >>> >> >> http://www.pythian.com/blog/bulk-loading-options-for-cassandra/ >> >> =Rob >> >> > >
