On Mon, Aug 31, 2015 at 1:32 PM, Sachin Nikam <sknikam@gmail.com> wrote:
When we add 3 more nodes in Data Center B, the repair tool starts syncing the data between 2 data centers and then gives up after ~2 days.

Has anybody run in to similar issue before? If so what is the solution?

https://issues.apache.org/jira/browse/CASSANDRA-9624, maybe?