Package org.apache.hadoop.hbase.fs

Class TestBlockReorder

java.lang.Object

org.apache.hadoop.hbase.fs.TestBlockReorder

public class TestBlockReorder
extends Object

Tests for the hdfs fix from HBASE-6435. Please don't add new subtest which involves starting / stopping MiniDFSCluster in this class. When stopping MiniDFSCluster, shutdown hooks would be cleared in hadoop's ShutdownHookManager in hadoop 3. This leads to 'Failed suppression of fs shutdown hook' error in region server.

Field Summary

Fields

Modifier and Type	Field	Description
static final HBaseClassTestRule	CLASS_RULE
private org.apache.hadoop.hdfs.MiniDFSCluster	cluster
private org.apache.hadoop.conf.Configuration	conf
private org.apache.hadoop.hdfs.DistributedFileSystem	dfs
private static final String	host1
private static final String	host2
private static final String	host3
private HBaseTestingUtility	htu
private static final org.slf4j.Logger	LOG
org.junit.rules.TestName	name

Constructor Summary

Constructors

Constructor	Description
TestBlockReorder()

Method Summary

Modifier and Type	Method	Description
private String	getHostName(org.apache.hadoop.hdfs.server.datanode.DataNode dn)	Allow to get the hostname, using getHostName (hadoop 1) or getDisplayName (hadoop 2)
void	setUp()
void	tearDownAfterClass()
void	testBlockLocationReorder()	Test that we're can add a hook, and that this hook works when we try to read the file in HDFS.

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

LOG

private static final org.slf4j.Logger LOG

conf

private org.apache.hadoop.conf.Configuration conf

cluster

private org.apache.hadoop.hdfs.MiniDFSCluster cluster

htu

private HBaseTestingUtility htu

dfs

private org.apache.hadoop.hdfs.DistributedFileSystem dfs

host1

private static final String host1

See Also:

• Constant Field Values

host2

private static final String host2

See Also:

• Constant Field Values

host3

private static final String host3

See Also:

• Constant Field Values

name

public org.junit.rules.TestName name

Constructor Details

TestBlockReorder

public TestBlockReorder()

Method Details

setUp

public void setUp()
           throws Exception

Throws:

Exception

tearDownAfterClass

public void tearDownAfterClass()
                        throws Exception

Throws:

Exception

testBlockLocationReorder

public void testBlockLocationReorder()
                              throws Exception

Test that we're can add a hook, and that this hook works when we try to read the file in HDFS.

Throws:

Exception

getHostName

private String getHostName(org.apache.hadoop.hdfs.server.datanode.DataNode dn)
                    throws InvocationTargetException,
IllegalAccessException

Allow to get the hostname, using getHostName (hadoop 1) or getDisplayName (hadoop 2)

Throws:

InvocationTargetException

IllegalAccessException