org.apache.hadoop.hbase.master
Interfaces 
LogCleanerDelegate
RegionServerOperationListener
Classes 
HMaster
MetaRegion
OldLogsCleaner
ProcessRegionClose
ProcessRegionOpen
RegionManager
RegionServerOperationQueue
ServerManager
TimeToLiveLogCleaner
ZKUnassignedWatcher
Enums 
RegionServerOperationQueue.ProcessingResultCode
Exceptions 
InvalidColumnNameException
NotAllMetaRegionsOnlineException