> 5. If one is adding replication on the *production* Master cluster, what's the > worst thing that can happen to this Master cluster? Nothing scary other than > changing configs + interruption during a restart? (which is currently still > bad > because of region assignments?) >
The replication code is pretty much encapsulated from the rest of the region server code, it won't mess with your Puts or change your birthday date. With 0.90 the regions are reassigned where they were before, so it's really just the block cache that gets screwed. J-D
