org.apache.hadoop.hbase.master.balancer

Class TestDefaultLoadBalancer

java.lang.Object

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

org.apache.hadoop.hbase.master.balancer.TestDefaultLoadBalancer

public class TestDefaultLoadBalancer
extends BalancerTestBase

Test the load balancer that is created by default.

Nested Class Summary

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

BalancerTestBase.MockMapping

Field Summary

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

conf, rand

Constructor Summary

Constructors

Constructor and Description
TestDefaultLoadBalancer()

Method Summary

Modifier and Type	Method and Description
static void	beforeAllTests()
void	testBalanceCluster() Test the load balancing algorithm.

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

assertClusterAsBalanced, assertRegionReplicaPlacement, 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

Constructor Detail

TestDefaultLoadBalancer

public TestDefaultLoadBalancer()

Method Detail

beforeAllTests

public static void beforeAllTests()
                           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