org.apache.hadoop.hbase.master.balancer

Class TestStochasticLoadBalancer

java.lang.Object

org.apache.hadoop.hbase.master.balancer.BalancerTestBase

org.apache.hadoop.hbase.master.balancer.TestStochasticLoadBalancer

public class TestStochasticLoadBalancer
extends BalancerTestBase

Nested Class Summary

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

BalancerTestBase.MockMapping

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	REGION_KEY

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

conf, loadBalancer, rand

Constructor Summary

Constructors

Constructor and Description
TestStochasticLoadBalancer()

Method Summary

Modifier and Type	Method and Description
void	testBalanceCluster() Test the load balancing algorithm.
void	testCostFromArray()
void	testKeepRegionLoad()
void	testLargeCluster()
void	testLosingRs()
void	testMidCluster()
void	testMidCluster2()
void	testMidCluster3()
void	testNeedsBalanceForColocatedReplicas()
void	testRegionReplicasOnSmallCluster()
void	testRegionReplicationOnMidClusterSameHosts()
void	testRegionReplicationOnMidClusterWithRacks()
void	testReplicaCost()
void	testReplicaCostForReplicas()
void	testSkewCost()
void	testSmallCluster()
void	testSmallCluster2()
void	testSmallCluster3()
void	testTableSkewCost()

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

assertClusterAsBalanced, assertRegionReplicaPlacement, beforeAllTests, convertToList, createServerMap, mockCluster, mockClusterServers, mockClusterServers, printMock, printStats, randomRegions, randomRegions, randomServer, randomServers, reconcile, returnRegions, returnServer, returnServers, testWithCluster, testWithCluster, updateLoad

Methods inherited from class java.lang.Object

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

Field Detail

REGION_KEY

public static final java.lang.String REGION_KEY

See Also:

Constant Field Values

Constructor Detail

TestStochasticLoadBalancer

public TestStochasticLoadBalancer()

Method Detail

testKeepRegionLoad

public void testKeepRegionLoad()
                        throws java.lang.Exception

Throws:

java.lang.Exception

testBalanceCluster

public void testBalanceCluster()
                        throws java.lang.Exception

Test the load balancing algorithm. Invariant is that all servers should be hosting either floor(average) or ceiling(average)

Throws:

java.lang.Exception

testSkewCost

public void testSkewCost()

testTableSkewCost

public void testTableSkewCost()

testCostFromArray

public void testCostFromArray()

testLosingRs

public void testLosingRs()
                  throws java.lang.Exception

Throws:

java.lang.Exception

testReplicaCost

public void testReplicaCost()

testReplicaCostForReplicas

public void testReplicaCostForReplicas()

testNeedsBalanceForColocatedReplicas

public void testNeedsBalanceForColocatedReplicas()

testSmallCluster

public void testSmallCluster()

testSmallCluster2

public void testSmallCluster2()

testSmallCluster3

public void testSmallCluster3()

testMidCluster

public void testMidCluster()

testMidCluster2

public void testMidCluster2()

testMidCluster3

public void testMidCluster3()

testLargeCluster

public void testLargeCluster()

testRegionReplicasOnSmallCluster

public void testRegionReplicasOnSmallCluster()

testRegionReplicationOnMidClusterSameHosts

public void testRegionReplicationOnMidClusterSameHosts()

testRegionReplicationOnMidClusterWithRacks

public void testRegionReplicationOnMidClusterWithRacks()