org.apache.hadoop.hbase

Class TestZooKeeper

java.lang.Object

org.apache.hadoop.hbase.TestZooKeeper

public class TestZooKeeper
extends Object

Constructor Summary

Constructors

Constructor and Description
TestZooKeeper()

Method Summary

Modifier and Type	Method and Description
void	after()
void	setUp()
static void	setUpBeforeClass()
static void	tearDownAfterClass()
void	testClientSessionExpired() See HBASE-1232 and http://wiki.apache.org/hadoop/ZooKeeper/FAQ#4.
void	testCreateSilentIsReallySilent() A test for HBASE-3238
void	testCreateWithParents() Create a znode with data
void	testGetChildDataAndWatchForNewChildrenShouldNotThrowNPE() Test should not fail with NPE when getChildDataAndWatchForNewChildren invoked with wrongNode
void	testLogSplittingAfterMasterRecoveryDueToZKExpiry() Tests whether the logs are split when master recovers from a expired zookeeper session and an RS goes down.
void	testMasterSessionExpired()
void	testMasterZKSessionRecoveryFailure() Master recovery when the znode already exists.
void	testMultipleZK()
void	testRegionAssignmentAfterMasterRecoveryDueToZKExpiry() Tests that the master does not call retainAssignment after recovery from expired zookeeper session.
void	testRegionServerSessionExpired()
void	testZNodeDeletes() Create a bunch of znodes in a hierarchy, try deleting one that has childs (it will fail), then delete it recursively, then delete the last znode

Methods inherited from class java.lang.Object

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

Constructor Detail

TestZooKeeper

public TestZooKeeper()

Method Detail

setUpBeforeClass

public static void setUpBeforeClass()
                             throws Exception

Throws:

Exception

tearDownAfterClass

public static void tearDownAfterClass()
                               throws Exception

Throws:

Exception

setUp

public void setUp()
           throws Exception

Throws:

Exception

after

public void after()
           throws Exception

Throws:

Exception

testClientSessionExpired

public void testClientSessionExpired()
                              throws Exception

See HBASE-1232 and http://wiki.apache.org/hadoop/ZooKeeper/FAQ#4.

Throws:

IOException

InterruptedException

Exception

testRegionServerSessionExpired

public void testRegionServerSessionExpired()
                                    throws Exception

Throws:

Exception

testMasterSessionExpired

public void testMasterSessionExpired()
                              throws Exception

Throws:

Exception

testMasterZKSessionRecoveryFailure

public void testMasterZKSessionRecoveryFailure()
                                        throws Exception

Master recovery when the znode already exists. Internally, this test differs from testMasterSessionExpired() because here the master znode will exist in ZK.

Throws:

Exception

testMultipleZK

public void testMultipleZK()
                    throws IOException,
                           NoSuchMethodException,
                           InvocationTargetException,
                           IllegalAccessException

Throws:

IOException

NoSuchMethodException

InvocationTargetException

IllegalAccessException

testCreateWithParents

public void testCreateWithParents()
                           throws Exception

Create a znode with data

Throws:

Exception

testZNodeDeletes

public void testZNodeDeletes()
                      throws Exception

Create a bunch of znodes in a hierarchy, try deleting one that has childs (it will fail), then delete it recursively, then delete the last znode

Throws:

Exception

testCreateSilentIsReallySilent

public void testCreateSilentIsReallySilent()
                                    throws InterruptedException,
                                           KeeperException,
                                           IOException

A test for HBASE-3238

Throws:

IOException - A connection attempt to zk failed

InterruptedException - One of the non ZKUtil actions was interrupted

KeeperException - Any of the zookeeper connections had a KeeperException

testGetChildDataAndWatchForNewChildrenShouldNotThrowNPE

public void testGetChildDataAndWatchForNewChildrenShouldNotThrowNPE()
                                                             throws Exception

Test should not fail with NPE when getChildDataAndWatchForNewChildren invoked with wrongNode

Throws:

Exception

testRegionAssignmentAfterMasterRecoveryDueToZKExpiry

public void testRegionAssignmentAfterMasterRecoveryDueToZKExpiry()
                                                          throws Exception

Tests that the master does not call retainAssignment after recovery from expired zookeeper session. Without the HBASE-6046 fix master always tries to assign all the user regions by calling retainAssignment.

Throws:

Exception

testLogSplittingAfterMasterRecoveryDueToZKExpiry

public void testLogSplittingAfterMasterRecoveryDueToZKExpiry()
                                                      throws IOException,
                                                             KeeperException,
                                                             InterruptedException

Tests whether the logs are split when master recovers from a expired zookeeper session and an RS goes down.

Throws:

IOException

KeeperException

InterruptedException