org.apache.hadoop.hbase.master

Class TestMasterTransitions

java.lang.Object

org.apache.hadoop.hbase.master.TestMasterTransitions

public class TestMasterTransitions
extends Object

Test transitions of state across the master. Sets up the cluster once and then runs a couple of tests.

Constructor Summary

Constructors

Constructor and Description
TestMasterTransitions()

Method Summary

Modifier and Type	Method and Description
static void	afterAllTests()
static void	beforeAllTests() Start up a mini cluster and put a small table of many empty regions into it.
void	setup()
void	testAddingServerBeforeOldIsDead2413() Test adding in a new server before old one on same host+port is dead.
void	testKillRSWithOpeningRegion2482() In 2482, a RS with an opening region on it dies.
void	testRegionCloseWhenNoMetaHBase2428() In 2428, the meta region has just been set offline and then a close comes in.

Methods inherited from class java.lang.Object

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

Constructor Detail

TestMasterTransitions

public TestMasterTransitions()

Method Detail

beforeAllTests

public static void beforeAllTests()
                           throws Exception

Start up a mini cluster and put a small table of many empty regions into it.

Throws:

Exception

afterAllTests

public static void afterAllTests()
                          throws Exception

Throws:

Exception

setup

public void setup()
           throws IOException

Throws:

IOException

testRegionCloseWhenNoMetaHBase2428

public void testRegionCloseWhenNoMetaHBase2428()
                                        throws Exception

In 2428, the meta region has just been set offline and then a close comes in.

Throws:

Exception

See Also:

HBASE-2428

testAddingServerBeforeOldIsDead2413

public void testAddingServerBeforeOldIsDead2413()
                                         throws IOException

Test adding in a new server before old one on same host+port is dead. Make the test more onerous by having the server under test carry the meta. If confusion between old and new, purportedly meta never comes back. Test that meta gets redeployed.

Throws:

IOException

testKillRSWithOpeningRegion2482

public void testKillRSWithOpeningRegion2482()
                                     throws Exception

In 2482, a RS with an opening region on it dies. The said region is then stuck in the master's regions-in-transition and never leaves it. This test works by bringing up a new regionserver, waiting for the load balancer to give it some regions. Then, we close all on the new server. After sending all the close messages, we send the new regionserver the special blocking message so it can not process any more messages. Meantime reopening of the just-closed regions is backed up on the new server. Soon as master gets an opening region from the new regionserver, we kill it. We then wait on all regions to come back on line. If bug is fixed, this should happen soon as the processing of the killed server is done.

Throws:

Exception

See Also:

HBASE-2482