Package org.apache.hadoop.hbase.replication.regionserver

Class TestMetaRegionReplicaReplication

java.lang.Object

org.apache.hadoop.hbase.replication.regionserver.TestMetaRegionReplicaReplication

public class TestMetaRegionReplicaReplication
extends Object

Tests region replication for hbase:meta by setting up region replicas and verifying async wal replication replays the edits to the secondary region in various scenarios.

See Also:

• TestRegionReplicaReplication

Field Summary

Fields

Modifier and Type	Field	Description
static final HBaseClassTestRule	CLASS_RULE
private final HBaseTestingUtil	HTU
private static final org.slf4j.Logger	LOG
org.junit.rules.TestName	name
private static final int	NB_SERVERS
private int	numOfMetaReplica
private static byte[]	VALUE

Constructor Summary

Constructors

Constructor	Description
TestMetaRegionReplicaReplication()

Method Summary

Modifier and Type	Method	Description
void	after()
void	before()
(package private) static boolean	contains(List<org.apache.hadoop.hbase.client.Result> contains, List<org.apache.hadoop.hbase.Cell> cells)	Presumes sorted Cells.
private boolean	doesNotContain(List<org.apache.hadoop.hbase.Cell> cells, org.apache.hadoop.hbase.TableName tableName)	Cells are from hbase:meta replica so will start w/ 'tableName,'; i.e.
private void	doNGets(org.apache.hadoop.hbase.client.Table table, byte[][] keys)
private org.apache.hadoop.hbase.regionserver.Region[]	getAllRegions(org.apache.hadoop.hbase.TableName tableName, int replication)	Returns All Regions for tableName including Replicas.
private List<org.apache.hadoop.hbase.client.Result>	getMetaCells(org.apache.hadoop.hbase.TableName tableName)	Scan hbase:meta for tableName content.
private void	getMetaReplicaReadRequests(org.apache.hadoop.hbase.regionserver.Region[] metaRegions, long[] counters)
private void	primaryIncreaseReplicaIncrease(long[] before, long[] after)
private void	primaryIncreaseReplicaNoChange(long[] before, long[] after)
private void	primaryNoChangeReplicaIncrease(long[] before, long[] after)
void	testCatalogReplicaReplicationWithFlushAndCompaction()
void	testCatalogReplicaReplicationWithReplicaMoved()
void	testHBaseMetaReplicaGets()
void	testHBaseMetaReplicates()	Test meta region replica replication.
private void	verifyDeletedReplication(org.apache.hadoop.hbase.TableName tableName, int regionReplication, org.apache.hadoop.hbase.TableName deletedTableName)	Verify when a Table is deleted from primary, then there are no references in replicas (because they get the delete of the table rows too).
protected void	verifyReplication(org.apache.hadoop.hbase.TableName tableName, int regionReplication, int startRow, int endRow, byte[] family)
private void	verifyReplication(org.apache.hadoop.hbase.TableName tableName, int regionReplication, int startRow, int endRow, byte[] family, boolean present)
private void	verifyReplication(org.apache.hadoop.hbase.TableName tableName, int regionReplication, List<org.apache.hadoop.hbase.client.Result> contains)	Verify Replicas have results (exactly).

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

NB_SERVERS

private static final int NB_SERVERS

See Also:

• Constant Field Values

HTU

private final HBaseTestingUtil HTU

numOfMetaReplica

private int numOfMetaReplica

VALUE

private static byte[] VALUE

name

public org.junit.rules.TestName name

Constructor Details

TestMetaRegionReplicaReplication

public TestMetaRegionReplicaReplication()

Method Details

before

public void before()
            throws Exception

Throws:

Exception

after

public void after()
           throws Exception

Throws:

Exception

testHBaseMetaReplicates

public void testHBaseMetaReplicates()
                             throws Exception

Test meta region replica replication. Create some tables and see if replicas pick up the additions.

Throws:

Exception

testCatalogReplicaReplicationWithFlushAndCompaction

public void testCatalogReplicaReplicationWithFlushAndCompaction()
                                                         throws Exception

Throws:

Exception

testCatalogReplicaReplicationWithReplicaMoved

public void testCatalogReplicaReplicationWithReplicaMoved()
                                                   throws Exception

Throws:

Exception

verifyReplication

protected void verifyReplication(org.apache.hadoop.hbase.TableName tableName,
 int regionReplication,
 int startRow,
 int endRow,
 byte[] family)
                          throws Exception

Throws:

Exception

verifyReplication

private void verifyReplication(org.apache.hadoop.hbase.TableName tableName,
 int regionReplication,
 int startRow,
 int endRow,
 byte[] family,
 boolean present)
                        throws Exception

Throws:

Exception

getMetaCells

private List<org.apache.hadoop.hbase.client.Result> getMetaCells(org.apache.hadoop.hbase.TableName tableName)
                                                          throws IOException

Scan hbase:meta for tableName content.

Throws:

IOException

getAllRegions

private org.apache.hadoop.hbase.regionserver.Region[] getAllRegions(org.apache.hadoop.hbase.TableName tableName,
 int replication)

Returns All Regions for tableName including Replicas.

verifyDeletedReplication

private void verifyDeletedReplication(org.apache.hadoop.hbase.TableName tableName,
 int regionReplication,
 org.apache.hadoop.hbase.TableName deletedTableName)

Verify when a Table is deleted from primary, then there are no references in replicas (because they get the delete of the table rows too).

doesNotContain

private boolean doesNotContain(List<org.apache.hadoop.hbase.Cell> cells,
 org.apache.hadoop.hbase.TableName tableName)

Cells are from hbase:meta replica so will start w/ 'tableName,'; i.e. the tablename followed by HConstants.DELIMITER. Make sure the deleted table is no longer present in passed cells.

verifyReplication

private void verifyReplication(org.apache.hadoop.hbase.TableName tableName,
 int regionReplication,
 List<org.apache.hadoop.hbase.client.Result> contains)

Verify Replicas have results (exactly).

contains

static boolean contains(List<org.apache.hadoop.hbase.client.Result> contains,
 List<org.apache.hadoop.hbase.Cell> cells)
                 throws IOException

Presumes sorted Cells. Verify that cells has contains at least.

Throws:

IOException

doNGets

private void doNGets(org.apache.hadoop.hbase.client.Table table,
 byte[][] keys)
              throws Exception

Throws:

Exception

primaryNoChangeReplicaIncrease

private void primaryNoChangeReplicaIncrease(long[] before,
 long[] after)

primaryIncreaseReplicaNoChange

private void primaryIncreaseReplicaNoChange(long[] before,
 long[] after)

primaryIncreaseReplicaIncrease

private void primaryIncreaseReplicaIncrease(long[] before,
 long[] after)

getMetaReplicaReadRequests

private void getMetaReplicaReadRequests(org.apache.hadoop.hbase.regionserver.Region[] metaRegions,
 long[] counters)

testHBaseMetaReplicaGets

public void testHBaseMetaReplicaGets()
                              throws Exception

Throws:

Exception