MiniZooKeeperCluster (Apache HBase 1.2.12 API)

java.lang.Object
- org.apache.hadoop.hbase.zookeeper.MiniZooKeeperCluster

```
@InterfaceAudience.Public
@InterfaceStability.Evolving
public class MiniZooKeeperCluster
extends Object
```
TODO: Most of the code in this class is ripped from ZooKeeper tests. Instead of redoing it, we should contribute updates to their code which let us more easily access testing helper objects.

Constructor Summary

Constructors
Constructor and Description

MiniZooKeeperCluster()

MiniZooKeeperCluster(org.apache.hadoop.conf.Configuration configuration)

Constructors
Constructor and Description
`MiniZooKeeperCluster()`
`MiniZooKeeperCluster(org.apache.hadoop.conf.Configuration configuration)`

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`addClientPort(int clientPort)` Add a client port to the list.
`int`	`getBackupZooKeeperServerNum()`
`int`	`getClientPort()`
`List<Integer>`	`getClientPortList()` Get the list of client ports.
`int`	`getZooKeeperServerNum()`
`int`	`killCurrentActiveZooKeeperServer()`
`void`	`killOneBackupZooKeeperServer()` Kill one back up ZK servers
`void`	`setDefaultClientPort(int clientPort)`
`void`	`setTickTime(int tickTime)`
`void`	`shutdown()`
`int`	`startup(File baseDir)`
`int`	`startup(File baseDir, int numZooKeeperServers)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MiniZooKeeperCluster
```
public MiniZooKeeperCluster()
```

MiniZooKeeperCluster

public MiniZooKeeperCluster(org.apache.hadoop.conf.Configuration configuration)

Method Detail

addClientPort
```
public void addClientPort(int clientPort)
```
Add a client port to the list.

Parameters:
clientPort - the specified port

getClientPortList
```
public List<Integer> getClientPortList()
```
Get the list of client ports.

Returns:
clientPortList the client port list

setDefaultClientPort

public void setDefaultClientPort(int clientPort)

setTickTime

public void setTickTime(int tickTime)

getBackupZooKeeperServerNum

public int getBackupZooKeeperServerNum()

getZooKeeperServerNum
```
public int getZooKeeperServerNum()
```

startup

public int startup(File baseDir)
            throws IOException,
                   InterruptedException

Throws:: IOException; InterruptedException

startup
```
public int startup(File baseDir,
          int numZooKeeperServers)
            throws IOException,
                   InterruptedException
```
Parameters:
baseDir -
numZooKeeperServers -

Returns:
ClientPort server bound to, -1 if there was a binding problem and we couldn't pick another port.

Throws:

IOException

InterruptedException

shutdown

public void shutdown()
              throws IOException

Throws:: IOException

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()
```

Class MiniZooKeeperCluster

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

MiniZooKeeperCluster

MiniZooKeeperCluster

Method Detail

addClientPort

getClientPortList

setDefaultClientPort

setTickTime

getBackupZooKeeperServerNum

getZooKeeperServerNum

startup

startup

shutdown

killCurrentActiveZooKeeperServer

killOneBackupZooKeeperServer

getClientPort