HQuorumPeer (Apache HBase 1.2.12 API)

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

```
@InterfaceAudience.LimitedPrivate(value="Tools")
@InterfaceStability.Evolving
public class HQuorumPeer
extends Object
```
HBase's version of ZooKeeper's QuorumPeer. When HBase is set to manage ZooKeeper, this class is used to start up QuorumPeer instances. By doing things in here rather than directly calling to ZooKeeper, we have more control over the process. This class uses ZKConfig to parse the zoo.cfg and inject variables from HBase's site.xml configuration in.

Constructor Summary

Constructors
Constructor and Description

HQuorumPeer()

Constructors
Constructor and Description
`HQuorumPeer()`

Method Summary

Methods
Modifier and Type	Method and Description
`private static boolean`	`addressIsLocalHost(String address)`
`static void`	`main(String[] args)` Parse ZooKeeper configuration from HBase XML config and run a QuorumPeer.
`private static void`	`runZKServer(org.apache.zookeeper.server.quorum.QuorumPeerConfig zkConfig)`
`(package private) static void`	`writeMyID(Properties properties)`

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

Constructor Detail
- HQuorumPeer
```
public HQuorumPeer()
```

Method Detail

main
```
public static void main(String[] args)
```
Parse ZooKeeper configuration from HBase XML config and run a QuorumPeer.

Parameters:
args - String[] of command line arguments. Not used.

runZKServer

private static void runZKServer(org.apache.zookeeper.server.quorum.QuorumPeerConfig zkConfig)
                         throws UnknownHostException,
                                IOException

Throws:: UnknownHostException; IOException

addressIsLocalHost

private static boolean addressIsLocalHost(String address)

writeMyID

static void writeMyID(Properties properties)
               throws IOException

Throws:: IOException

Class HQuorumPeer

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

HQuorumPeer

Method Detail

main

runZKServer

addressIsLocalHost

writeMyID