org.apache.hadoop.hbase.master

Class TestMasterShutdown

java.lang.Object

org.apache.hadoop.hbase.master.TestMasterShutdown

public class TestMasterShutdown
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
static HBaseClassTestRule	CLASS_RULE
private HBaseTestingUtility	htu
private static org.slf4j.Logger	LOG

Constructor Summary

Constructors

Constructor and Description
TestMasterShutdown()

Method Summary

Modifier and Type	Method and Description
private static org.apache.hadoop.conf.Configuration	createMasterShutdownBeforeStartingAnyRegionServerConfiguration() Create a cluster configuration suitable for testMasterShutdownBeforeStartingAnyRegionServer().
private static org.apache.hadoop.conf.Configuration	createResponsiveZkConfig(org.apache.hadoop.conf.Configuration baseConf) Create a new Configuration based on baseConf that has ZooKeeper connection settings tuned very aggressively.
void	shutdownCluster()
void	testMasterShutdown() Simple test of shutdown.
void	testMasterShutdownBeforeStartingAnyRegionServer() This test appears to be an intentional race between a thread that issues a shutdown RPC to the master, while the master is concurrently realizing it cannot initialize because there are no region servers available to it.

Methods inherited from class java.lang.Object

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

Field Detail

LOG

private static final org.slf4j.Logger LOG

CLASS_RULE

public static final HBaseClassTestRule CLASS_RULE

htu

private HBaseTestingUtility htu

Constructor Detail

TestMasterShutdown

public TestMasterShutdown()

Method Detail

shutdownCluster

public void shutdownCluster()
                     throws IOException

Throws:

IOException

testMasterShutdown

public void testMasterShutdown()
                        throws Exception

Simple test of shutdown.

Starts with three masters. Tells the active master to shutdown the cluster. Verifies that all masters are properly shutdown.

Throws:

Exception

testMasterShutdownBeforeStartingAnyRegionServer

public void testMasterShutdownBeforeStartingAnyRegionServer()
                                                     throws Exception

This test appears to be an intentional race between a thread that issues a shutdown RPC to the master, while the master is concurrently realizing it cannot initialize because there are no region servers available to it. The expected behavior is that master initialization is interruptable via said shutdown RPC.

Throws:

Exception

createMasterShutdownBeforeStartingAnyRegionServerConfiguration

private static org.apache.hadoop.conf.Configuration createMasterShutdownBeforeStartingAnyRegionServerConfiguration()

Create a cluster configuration suitable for testMasterShutdownBeforeStartingAnyRegionServer().

createResponsiveZkConfig

private static org.apache.hadoop.conf.Configuration createResponsiveZkConfig(org.apache.hadoop.conf.Configuration baseConf)

Create a new Configuration based on baseConf that has ZooKeeper connection settings tuned very aggressively. The resulting client is used within a retry loop, so there's no value in having the client itself do the retries. We want to iterate on the base configuration because we're waiting for the mini-cluster to start and set it's ZK client port.

Returns:

a new, configured Configuration instance.