Package org.apache.hadoop.hbase.mapreduce

Class TestRegionSizeCalculator

java.lang.Object

org.apache.hadoop.hbase.mapreduce.TestRegionSizeCalculator

public class TestRegionSizeCalculator
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
static final HBaseClassTestRule	CLASS_RULE
private org.apache.hadoop.conf.Configuration	configuration
private final long	megabyte
private final org.apache.hadoop.hbase.ServerName	sn

Constructor Summary

Constructors

Constructor	Description
TestRegionSizeCalculator()

Method Summary

Modifier and Type	Method	Description
private org.apache.hadoop.hbase.client.Admin	mockAdmin(org.apache.hadoop.hbase.RegionMetrics... regionLoadArray)	Creates mock returning RegionLoad info about given servers.
private org.apache.hadoop.hbase.RegionMetrics	mockRegion(String regionName, int fileSizeMb)	Creates mock of region with given name and size.
private org.apache.hadoop.hbase.client.RegionLocator	mockRegionLocator(String... regionNames)	Makes some table with given region names.
private org.apache.hadoop.hbase.client.RegionLocator	mockRegionLocator(org.apache.hadoop.hbase.ServerName serverName, List<String> regionNames)
void	testDisabled()	When calculator is disabled, it should return 0 for each request.
void	testLargeRegion()	When size of region in megabytes is larger than largest possible integer there could be error caused by lost of precision.
void	testRegionWithNullServerName()
void	testSimpleTestCase()

Methods inherited from class java.lang.Object

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

Field Details

CLASS_RULE

public static final HBaseClassTestRule CLASS_RULE

configuration

private org.apache.hadoop.conf.Configuration configuration

megabyte

private final long megabyte

See Also:

• Constant Field Values

sn

private final org.apache.hadoop.hbase.ServerName sn

Constructor Details

TestRegionSizeCalculator

public TestRegionSizeCalculator()

Method Details

testSimpleTestCase

public void testSimpleTestCase()
                        throws Exception

Throws:

Exception

testLargeRegion

public void testLargeRegion()
                     throws Exception

When size of region in megabytes is larger than largest possible integer there could be error caused by lost of precision.

Throws:

Exception

testDisabled

public void testDisabled()
                  throws Exception

When calculator is disabled, it should return 0 for each request.

Throws:

Exception

testRegionWithNullServerName

public void testRegionWithNullServerName()
                                  throws Exception

Throws:

Exception

mockRegionLocator

private org.apache.hadoop.hbase.client.RegionLocator mockRegionLocator(String... regionNames)
                                                                throws IOException

Makes some table with given region names.

Throws:

IOException

mockRegionLocator

private org.apache.hadoop.hbase.client.RegionLocator mockRegionLocator(org.apache.hadoop.hbase.ServerName serverName,
 List<String> regionNames)
                                                                throws IOException

Throws:

IOException

mockAdmin

private org.apache.hadoop.hbase.client.Admin mockAdmin(org.apache.hadoop.hbase.RegionMetrics... regionLoadArray)
                                                throws Exception

Creates mock returning RegionLoad info about given servers.

Throws:

Exception

mockRegion

private org.apache.hadoop.hbase.RegionMetrics mockRegion(String regionName,
 int fileSizeMb)

Creates mock of region with given name and size.

Parameters:

fileSizeMb - number of megabytes occupied by region in file store in megabytes