Package org.apache.hadoop.hbase.io

Class TestHeapSize

java.lang.Object

org.apache.hadoop.hbase.io.TestHeapSize

@Tag("org.apache.hadoop.hbase.testclassification.IOTests") @Tag("org.apache.hadoop.hbase.testclassification.SmallTests")
public class TestHeapSize
extends Object

Testing the sizing that HeapSize offers and compares to the size given by ClassSize.

Field Summary

Fields

Modifier and Type	Field	Description
private static final org.slf4j.Logger	LOG

Constructor Summary

Constructors

Constructor	Description
TestHeapSize()

Method Summary

Modifier and Type	Method	Description
static void	beforeClass()
private long	calcFixedOverhead(List<Class<?>> classList)
void	testAutoCalcFixedOverhead()
void	testHFileBlockSize()
void	testMutations()
void	testNativeSizes()	Test our hard-coded sizing of native java objects
void	testObjectSize()
void	testReferenceSize()
void	testSizes()	Testing the classes that implements HeapSize and are a part of 0.20.

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

Constructor Details

TestHeapSize

public TestHeapSize()

Method Details

beforeClass

@BeforeAll
public static void beforeClass()
                        throws Exception

Throws:

Exception

testNativeSizes

@Test
public void testNativeSizes()
                     throws IOException

Test our hard-coded sizing of native java objects

Throws:

IOException

testSizes

@Test
public void testSizes()
               throws IOException

Testing the classes that implements HeapSize and are a part of 0.20. Some are not tested here for example BlockIndex which is tested in TestHFile since it is a non public class

Throws:

IOException

testHFileBlockSize

@Test
public void testHFileBlockSize()
                        throws IOException

Throws:

IOException

testMutations

@Test
public void testMutations()

testReferenceSize

@Test
public void testReferenceSize()

testObjectSize

@Test
public void testObjectSize()
                    throws IOException

Throws:

IOException

calcFixedOverhead

private long calcFixedOverhead(List<Class<?>> classList)

testAutoCalcFixedOverhead

@Test
public void testAutoCalcFixedOverhead()
                               throws InterruptedException

Throws:

InterruptedException