> > Seems odd that a CP, a region-scoped thing, would want to make use of > the catalogtracker and/or zk? > > With AccessController we found a need to coordinate some state (ACL permissions) across all region CP instances. Seems pretty likely that other implementors will run into a similar need.
I won't remove them, no worries. Maybe the RSS should implement > Server Interface then? At least, we should fix the fact that Server > does getZooKeeper to get ZooKeeperWatcher while RSS does > getZooKeeperWatcher (the 'right' name for the method). Having RSS extend Server would make sense, since Server provides access to Configuration, CatalogTracker and ZooKeeperWatcher. Though it looks like RSS already extends OnlineRegions? Anyway, seems like the 3 could stand to be normalized a bit.
