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

Class TestRSGroupBasedLoadBalancer

java.lang.Object

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

org.apache.hadoop.hbase.master.balancer.RSGroupableBalancerTestBase

org.apache.hadoop.hbase.master.balancer.TestRSGroupBasedLoadBalancer

@Tag("org.apache.hadoop.hbase.testclassification.LargeTests")
public class TestRSGroupBasedLoadBalancer
extends RSGroupableBalancerTestBase

Test RSGroupBasedLoadBalancer with SimpleLoadBalancer as internal balancer

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	Description
private static org.apache.hadoop.hbase.rsgroup.RSGroupBasedLoadBalancer	loadBalancer
private static final org.slf4j.Logger	LOG

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

conf, groupMap, groups, regionAssignment, regionId, servers, table0, tableDescs, tables

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

clusterStateMocks, clusterStateMocksWithNoSlop, clusterStateMocksWithSlop, largeCluster

Constructor Summary

Constructors

Constructor	Description
TestRSGroupBasedLoadBalancer()

Method Summary

Modifier and Type	Method	Description
static void	beforeAllTests()
void	testBalanceCluster()	Test the load balancing algorithm.
void	testBulkAssignment()	Tests the bulk assignment used during cluster startup.
void	testOnConfigurationChange()
void	testRetainAssignment()	Test the cluster startup bulk assignment which attempts to retain assignment info.
void	testRoundRobinAssignment()	Test BOGUS_SERVER_NAME among groups do not overwrite each other.

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

assertClusterAsBalanced, assertImmediateAssignment, assertRetainedAssignment, assignedRegions, constructGroupInfo, constructTableDesc, convertToGroupBasedMap, generateServers, getMockedGroupInfoManager, getMockedMaster, getTableName, mockClusterServers, mockServerMetricsWithRegionCacheInfo, printStats, randomRegions, reconcile, updateLoad

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

assertClusterAsBalanced, assertClusterOverallAsBalanced, assertRegionReplicaPlacement, convertToList, createRegions, createServerMap, mockCluster, mockClusterServers, mockClusterServers, mockClusterServers, mockClusterServersUnsorted, mockClusterServersWithTables, mockUniformClusterServers, printMock, printStats, randomRegions, randomServer, randomServers, reconcile, returnRegions, returnServer, returnServers, uniformRegions, updateLoad

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

loadBalancer

private static org.apache.hadoop.hbase.rsgroup.RSGroupBasedLoadBalancer loadBalancer

Constructor Details

TestRSGroupBasedLoadBalancer

public TestRSGroupBasedLoadBalancer()

Method Details

beforeAllTests

@BeforeAll
public static void beforeAllTests()
                           throws Exception

Throws:

Exception

testBalanceCluster

@Test
public void testBalanceCluster()
                        throws Exception

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

Throws:

Exception

testBulkAssignment

@Test
public void testBulkAssignment()
                        throws Exception

Tests the bulk assignment used during cluster startup.

Round-robin. Should yield a balanced cluster so same invariant as the load balancer holds, all servers holding either floor(avg) or ceiling(avg).

Throws:

Exception

testRetainAssignment

@Test
public void testRetainAssignment()
                          throws Exception

Test the cluster startup bulk assignment which attempts to retain assignment info.

Throws:

Exception

testRoundRobinAssignment

@Test
public void testRoundRobinAssignment()
                              throws Exception

Test BOGUS_SERVER_NAME among groups do not overwrite each other.

Throws:

Exception

testOnConfigurationChange

@Test
public void testOnConfigurationChange()