org.apache.hadoop.hbase.master.balancer

Class LoadOnlyFavoredStochasticBalancer

java.lang.Object

org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer

org.apache.hadoop.hbase.master.balancer.StochasticLoadBalancer

org.apache.hadoop.hbase.master.balancer.FavoredStochasticBalancer

org.apache.hadoop.hbase.master.balancer.LoadOnlyFavoredStochasticBalancer

All Implemented Interfaces:

org.apache.hadoop.hbase.conf.ConfigurationObserver, org.apache.hadoop.hbase.favored.FavoredNodesPromoter, org.apache.hadoop.hbase.master.LoadBalancer, org.apache.hadoop.hbase.Stoppable

public class LoadOnlyFavoredStochasticBalancer
extends org.apache.hadoop.hbase.master.balancer.FavoredStochasticBalancer

Used for FavoredNode unit tests

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.hbase.master.balancer.FavoredStochasticBalancer

org.apache.hadoop.hbase.master.balancer.FavoredStochasticBalancer.FavoredNodeLoadPicker

Nested classes/interfaces inherited from class org.apache.hadoop.hbase.master.balancer.StochasticLoadBalancer

org.apache.hadoop.hbase.master.balancer.StochasticLoadBalancer.GeneratorType

Field Summary

Fields inherited from class org.apache.hadoop.hbase.master.balancer.StochasticLoadBalancer

candidateGenerators, COST_FUNCTIONS_COST_FUNCTIONS_KEY, DEFAULT_KEEP_REGION_LOADS, DEFAULT_MAX_RUNNING_TIME, DEFAULT_MAX_STEPS, DEFAULT_MIN_COST_NEED_BALANCE, DEFAULT_RUN_MAX_STEPS, DEFAULT_STEPS_PER_REGION, KEEP_REGION_LOADS, loads, MAX_RUNNING_TIME_KEY, MAX_STEPS_KEY, MIN_COST_NEED_BALANCE_KEY, namedQueueRecorder, OVERALL_COST_FUNCTION_NAME, RUN_MAX_STEPS_KEY, STEPS_PER_REGION_KEY

Fields inherited from class org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer

BALANCER_DECISION_BUFFER_ENABLED, BALANCER_REJECTION_BUFFER_ENABLED, clusterStatus, DEFAULT_BALANCER_DECISION_BUFFER_ENABLED, DEFAULT_BALANCER_REJECTION_BUFFER_ENABLED, DEFAULT_HBASE_MASTER_LOADBALANCE_BYTABLE, isByTable, masterServerName, metricsBalancer, MIN_SERVER_BALANCE, onlySystemTablesOnMaster, rackManager, regionFinder, services, slop, useRegionFinder

Fields inherited from interface org.apache.hadoop.hbase.favored.FavoredNodesPromoter

FAVORED_ALWAYS_ASSIGN_REGIONS

Fields inherited from interface org.apache.hadoop.hbase.master.LoadBalancer

BOGUS_SERVER_NAME, SYSTEM_TABLES_ON_MASTER, TABLES_ON_MASTER

Constructor Summary

Constructors

Constructor and Description
LoadOnlyFavoredStochasticBalancer()

Method Summary

Modifier and Type	Method and Description
protected List<org.apache.hadoop.hbase.master.balancer.CandidateGenerator>	createCandidateGenerators()

Methods inherited from class org.apache.hadoop.hbase.master.balancer.FavoredStochasticBalancer

balanceTable, generateFavoredNodesForDaughter, generateFavoredNodesForMergedRegion, getFavoredNodes, getRandomGenerator, randomAssignment, retainAssignment, roundRobinAssignment, setMasterServices

Methods inherited from class org.apache.hadoop.hbase.master.balancer.StochasticLoadBalancer

composeAttributeName, computeCost, getCandidateGenerators, getCostFunctionNames, initCosts, loadConf, needsBalance, nextAction, setRackManager, updateBalancerLoadInfo, updateClusterMetrics, updateCostsAndWeightsWithAction, updateMetricsSize

Methods inherited from class org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer

assignMasterSystemRegions, balanceCluster, balanceMasterRegions, getConf, getDefaultSlop, idleRegionServerExist, initialize, isStopped, onConfigurationChange, postMasterStartupInitialize, preBalanceCluster, regionOffline, regionOnline, shouldBeOnMaster, sloppyRegionServerExist, stop, toEnsumbleTableLoad, updateBalancerStatus

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.hadoop.hbase.master.LoadBalancer

isMasterCanHostUserRegions, isSystemTablesOnlyOnMaster, isTablesOnMaster

Constructor Detail

LoadOnlyFavoredStochasticBalancer

public LoadOnlyFavoredStochasticBalancer()

Method Detail

createCandidateGenerators

protected List<org.apache.hadoop.hbase.master.balancer.CandidateGenerator> createCandidateGenerators()

Overrides:

createCandidateGenerators in class org.apache.hadoop.hbase.master.balancer.FavoredStochasticBalancer