Hi, Ran, Is your KV DB a LoggedStore? If yes, that migration should be an easy one via a simple configure change, since when the re-cover procedure in init() will recover the whole DB from changelog to local RocksDB instance, instead of LevelDB instance. Otherwise, you may need to look for tools to migrate LevelDB database files to RocksDB database files, while is currently outside the scope of Samza tools support.
Best, -Yi On Tue, Dec 22, 2015 at 3:44 AM, Ran Silberman <r...@fortscale.com> wrote: > Hello, > In Fortscale we use Samza 0.7 and want to migrate to 0.9.1 > > We want to move our KV DB from LevelDB to RocksDB. > > Is there a simple utility to run a migration at our customers installation > without losing the data in the database? > > Thank you, > Ran >