Sometimes our users want to upgrade their servers or move to a new datacenter, then we have to migrate the data from HBase. Currently we enable the replication from the old cluster to the new cluster, and run CopyTable to move the older data.
It's a little inefficient. It takes more than one day to migrate 1.8T data and more time to verify. Can we have a better way to do that, like snapshot or purely HDFS files? And what's the best practise or your valuable experience?
