Package org.apache.hadoop.hbase.namequeues

Class TestWALEventTracker

java.lang.Object

org.apache.hadoop.hbase.namequeues.TestWALEventTracker

public class TestWALEventTracker
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
static final HBaseClassTestRule	CLASS_RULE
static org.apache.hadoop.conf.Configuration	CONF
private static final org.slf4j.Logger	LOG
private static HBaseTestingUtility	TEST_UTIL

Constructor Summary

Constructors

Constructor	Description
TestWALEventTracker()

Method Summary

Modifier and Type	Method	Description
private void	checkWALRolledEventHasSize(List<org.apache.hadoop.hbase.namequeues.WALEventTrackerPayload> walEvents, String walName, long actualSize)
private void	compareEvents(String hostName, String walName, List<org.apache.hadoop.hbase.namequeues.WALEventTrackerPayload> walEvents, List<String> expectedStates, boolean strict)	Compare the events from @WALEventTrackerTableAccessor.WAL_EVENT_TRACKER_TABLE_NAME
private org.apache.hadoop.hbase.namequeues.WALEventTrackerPayload	getPayload(List<org.apache.hadoop.hbase.Cell> cells)
private List<org.apache.hadoop.hbase.namequeues.WALEventTrackerPayload>	getRows(String rowKeyPrefix, org.apache.hadoop.hbase.client.Connection connection)
private int	getTableCount(org.apache.hadoop.hbase.client.Connection connection)
static void	setup()
static void	teardown()
void	testWALRolling()
private void	waitForWALEventTrackerTable(org.apache.hadoop.hbase.client.Connection connection)
void	waitForWalEventTrackerTableCreation()

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

TEST_UTIL

private static HBaseTestingUtility TEST_UTIL

CONF

public static org.apache.hadoop.conf.Configuration CONF

Constructor Details

TestWALEventTracker

public TestWALEventTracker()

Method Details

setup

public static void setup()
                  throws Exception

Throws:

Exception

teardown

public static void teardown()
                     throws Exception

Throws:

Exception

waitForWalEventTrackerTableCreation

public void waitForWalEventTrackerTableCreation()

testWALRolling

public void testWALRolling()
                    throws Exception

Throws:

Exception

checkWALRolledEventHasSize

private void checkWALRolledEventHasSize(List<org.apache.hadoop.hbase.namequeues.WALEventTrackerPayload> walEvents,
 String walName,
 long actualSize)

compareEvents

private void compareEvents(String hostName,
 String walName,
 List<org.apache.hadoop.hbase.namequeues.WALEventTrackerPayload> walEvents,
 List<String> expectedStates,
 boolean strict)

Compare the events from @WALEventTrackerTableAccessor.WAL_EVENT_TRACKER_TABLE_NAME

Parameters:

hostName - hostname

walName - walname

walEvents - event from table

expectedStates - expected states for the hostname and wal name

strict - whether to check strictly or not. Sometimes we lose the ACTIVE state event for the first wal since it takes some time for hmaster to create the table and by that time RS already creates the first WAL and will try to persist ACTIVE event to waleventtracker table.

waitForWALEventTrackerTable

private void waitForWALEventTrackerTable(org.apache.hadoop.hbase.client.Connection connection)
                                  throws IOException

Throws:

IOException

getRows

private List<org.apache.hadoop.hbase.namequeues.WALEventTrackerPayload> getRows(String rowKeyPrefix,
 org.apache.hadoop.hbase.client.Connection connection)
                                                                         throws IOException

Throws:

IOException

getPayload

private org.apache.hadoop.hbase.namequeues.WALEventTrackerPayload getPayload(List<org.apache.hadoop.hbase.Cell> cells)

getTableCount

private int getTableCount(org.apache.hadoop.hbase.client.Connection connection)
                   throws Exception

Throws:

Exception