Hi, We have several Cassandra clusters in our department, each for a single application. Now we're considering merge these clusters to a single one, and this single one will serve all applications using cassandra, each with a single keyspace. We tried unifying all cluster names to a same one, but it didn't work well since some data got lost, maybe we did it in a wrong way. Does anyone here know if there is an efficient way to migrate multiple cassandra clusters' data to a single cassandra cluster without any dataloss.
Thanks, Ray -- Ray Zhang Cyberagent.co
