org.apache.hadoop.hbase

Class TestRegionRebalancing

java.lang.Object

org.apache.hadoop.hbase.TestRegionRebalancing

public class TestRegionRebalancing
extends Object

Test whether region re-balancing works. (HBASE-71) The test only works for cluster wide balancing, not per table wide. Increase the margin a little to make StochasticLoadBalancer result acceptable.

Field Summary

Fields

Modifier and Type	Field and Description
static HBaseClassTestRule	CLASS_RULE

Constructor Summary

Constructors

Constructor and Description
TestRegionRebalancing(String balancerName)

Method Summary

Modifier and Type	Method and Description
void	after()
void	before()
static Collection<Object[]>	data()
void	testRebalanceOnRegionServerNumberChange() For HBASE-71.

Methods inherited from class java.lang.Object

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

Field Detail

CLASS_RULE

public static final HBaseClassTestRule CLASS_RULE

Constructor Detail

TestRegionRebalancing

public TestRegionRebalancing(String balancerName)

Method Detail

data

public static Collection<Object[]> data()

after

public void after()
           throws Exception

Throws:

Exception

before

public void before()
            throws Exception

Throws:

Exception

testRebalanceOnRegionServerNumberChange

public void testRebalanceOnRegionServerNumberChange()
                                             throws IOException,
                                                    InterruptedException

For HBASE-71. Try a few different configurations of starting and stopping region servers to see if the assignment or regions is pretty balanced.

Throws:

IOException

InterruptedException