Class Summary |
AssignmentManager |
Manages and performs region assignment. |
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 |
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HMasterCommandLine.LocalHMaster |
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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. |
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. |
ServerManager |
The ServerManager class manages info about region servers - HServerInfo,
load numbers, dying servers, etc. |
TimeToLiveLogCleaner |
Log cleaner that uses the timestamp of the hlog to determine if it should
be deleted. |