Package org.apache.hadoop.hbase.master.balancer

Class TableIsolationCandidateGenerator

java.lang.Object

org.apache.hadoop.hbase.master.balancer.CandidateGenerator

org.apache.hadoop.hbase.master.balancer.RegionPlanConditionalCandidateGenerator

org.apache.hadoop.hbase.master.balancer.TableIsolationCandidateGenerator

Direct Known Subclasses:

MetaTableIsolationCandidateGenerator, SystemTableIsolationCandidateGenerator

@Private
public abstract class TableIsolationCandidateGenerator
extends RegionPlanConditionalCandidateGenerator

Field Summary

Fields

Modifier and Type	Field	Description
private static final org.slf4j.Logger	LOG

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

MAX_WEIGHT

Constructor Summary

Constructors

Constructor	Description
TableIsolationCandidateGenerator(BalancerConditionals balancerConditionals)

Method Summary

Modifier and Type	Method	Description
(package private) BalanceAction	generate(BalancerClusterState cluster)
(package private) BalanceAction	generateCandidate(BalancerClusterState cluster, boolean isWeighing)	Generates a balancing action to appease the conditional.
(package private) abstract boolean	shouldBeIsolated(RegionInfo regionInfo)

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

batchMovesAndResetClusterState, clearWeightCache, getBalancerConditionals, getWeight, undoBatchAction, willBeAccepted

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

getAction, pickOtherRandomRack, pickOtherRandomServer, pickRandomRack, pickRandomRegion, pickRandomRegions, pickRandomServer

Methods inherited from class java.lang.Object

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

Field Details

LOG

private static final org.slf4j.Logger LOG

Constructor Details

TableIsolationCandidateGenerator

TableIsolationCandidateGenerator(BalancerConditionals balancerConditionals)

Method Details

shouldBeIsolated

abstract boolean shouldBeIsolated(RegionInfo regionInfo)

generate

BalanceAction generate(BalancerClusterState cluster)

Overrides:

generate in class RegionPlanConditionalCandidateGenerator

generateCandidate

BalanceAction generateCandidate(BalancerClusterState cluster,
 boolean isWeighing)

Description copied from class: RegionPlanConditionalCandidateGenerator

Generates a balancing action to appease the conditional.

Specified by:

generateCandidate in class RegionPlanConditionalCandidateGenerator

Parameters:

cluster - Current state of the cluster.

isWeighing - Flag indicating if the generator is being used for weighing.

Returns:

A BalanceAction, or NULL_ACTION if no action is needed.