org.apache.slider.core.zk

Class MiniZooKeeperCluster

java.lang.Object

org.apache.hadoop.service.AbstractService

org.apache.slider.core.zk.MiniZooKeeperCluster

All Implemented Interfaces:

Closeable, AutoCloseable, org.apache.hadoop.service.Service

public class MiniZooKeeperCluster
extends org.apache.hadoop.service.AbstractService

This is a version of the HBase ZK cluster cut out to be standalone. Important: keep this Java6 language level for now

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.hadoop.service.Service

org.apache.hadoop.service.Service.STATE

Field Summary

Fields

Modifier and Type	Field and Description
static int	MAX_CLIENT_CONNECTIONS

Constructor Summary

Constructors

Constructor and Description
MiniZooKeeperCluster(int numZooKeeperServers)

Method Summary

Methods

Modifier and Type	Method and Description
int	getBackupZooKeeperServerNum()
int	getClientPort()
String	getZkQuorum()
int	getZooKeeperServerNum()
int	killCurrentActiveZooKeeperServer()
void	killOneBackupZooKeeperServer() Kill one back up ZK servers
protected void	serviceInit(org.apache.hadoop.conf.Configuration conf)
protected void	serviceStart()
protected void	serviceStop()
void	setDefaultClientPort(int clientPort)
void	setTickTime(int tickTime)

Methods inherited from class org.apache.hadoop.service.AbstractService

close, getBlockers, getConfig, getFailureCause, getFailureState, getLifecycleHistory, getName, getServiceState, getStartTime, init, isInState, noteFailure, putBlocker, registerGlobalListener, registerServiceListener, removeBlocker, setConfig, start, stop, toString, unregisterGlobalListener, unregisterServiceListener, waitForServiceToStop

Methods inherited from class java.lang.Object

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

Field Detail

MAX_CLIENT_CONNECTIONS

public static final int MAX_CLIENT_CONNECTIONS

See Also:

Constant Field Values

Constructor Detail

MiniZooKeeperCluster

public MiniZooKeeperCluster(int numZooKeeperServers)

Method Detail

serviceInit

protected void serviceInit(org.apache.hadoop.conf.Configuration conf)
                    throws Exception

Overrides:

serviceInit in class org.apache.hadoop.service.AbstractService

Throws:

Exception

setDefaultClientPort

public void setDefaultClientPort(int clientPort)

setTickTime

public void setTickTime(int tickTime)

getBackupZooKeeperServerNum

public int getBackupZooKeeperServerNum()

getZooKeeperServerNum

public int getZooKeeperServerNum()

serviceStart

protected void serviceStart()
                     throws Exception

Overrides:

serviceStart in class org.apache.hadoop.service.AbstractService

Throws:

Exception

serviceStop

protected void serviceStop()
                    throws Exception

Overrides:

serviceStop in class org.apache.hadoop.service.AbstractService

Throws:

Exception

killCurrentActiveZooKeeperServer

public int killCurrentActiveZooKeeperServer()
                                     throws IOException,
                                            InterruptedException

Returns:

clientPort return clientPort if there is another ZK backup can run when killing the current active; return -1, if there is no backups.

Throws:

IOException

InterruptedException

killOneBackupZooKeeperServer

public void killOneBackupZooKeeperServer()
                                  throws IOException,
                                         InterruptedException

Kill one back up ZK servers

Throws:

IOException

InterruptedException

getClientPort

public int getClientPort()

getZkQuorum

public String getZkQuorum()