I wouldn't say it's good approach for that size. But you can try dsbulk approach too.
Try to split output into multiple files. Best Regards, Kiran M K On Tue, Jul 14, 2020, 5:17 AM Jai Bheemsen Rao Dhanwada < jaibheem...@gmail.com> wrote: > Hello, > > I would like to copy some data from one cassandra cluster to another > cassandra cluster using the CQLSH copy command. Is this the good approach > if the dataset size on the source cluster is very high(500G - 1TB)? If not > what is the safe approach? and are there any limitations/known issues to > keep in mind before attempting this? >