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Interface Summary | |
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LogCleanerDelegate | Interface for the log cleaning function inside the master. |
MasterServices | Services Master supplies |
SplitLogManager.TaskFinisher | SplitLogManager can use objects implementing this interface to
finish off a partially done task by SplitLogWorker . |
Class Summary | |
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AssignmentManager | Manages and performs region assignment. |
AssignmentManager.RegionsOnDeadServer | Store the related regions on a dead server, used by processServerShutdown. |
AssignmentManager.RegionState | State of a Region while undergoing transitions. |
BulkAssigner | Base class used bulk assigning and unassigning regions. |
DeadServer | Class to hold dead servers list and utility querying dead server list. |
HMaster | HMaster is the "master server" for HBase. |
HMasterCommandLine | |
HMasterCommandLine.LocalHMaster | |
LoadBalancer | Makes decisions about the placement and movement of Regions across RegionServers. |
LoadBalancer.RegionPlan | Stores the plan for the move of an individual region. |
LogCleaner | This Chore, everytime it runs, will clear the HLogs in the old logs folder that are deletable for each log cleaner in the chain. |
MasterDumpServlet | |
MasterFileSystem | This class abstracts a bunch of operations the HMaster needs to interact with the underlying file system, including splitting log files, checking file system status, etc. |
MasterStatusServlet | The servlet responsible for rendering the index page of the master. |
ServerManager | The ServerManager class manages info about region servers - HServerInfo, load numbers, dying servers, etc. |
SplitLogManager | Distributes the task of log splitting to the available region servers. |
TimeToLiveLogCleaner | Log cleaner that uses the timestamp of the hlog to determine if it should be deleted. |
Enum Summary | |
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AssignmentManager.RegionState.State | |
SplitLogManager.TaskFinisher.Status | status that can be returned finish() |
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