ZKJobMasterFinder

```
public class ZKJobMasterFinder
extends java.lang.Object
```
this class is used to discover the Job Master ip address and port number through ZooKeeper JobMaster creates a znode at the ZooKeeper server this class queries this node and retrieves the job master address from the content of that znode When that znode can not be retrieved immediately, it creates a NodeCache object and gets the value from this cache, instead of querying continually

Constructors
Constructor and Description
`ZKJobMasterFinder(Config config, java.lang.String jobID)`

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`close()`
`java.lang.String`	`getJobMasterIPandPort()`
`void`	`initialize()` connect to ZooKeeper server
`java.lang.String`	`waitAndGetJobMasterIPandPort(long timeLimit)`

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

public ZKJobMasterFinder(Config config,
                         java.lang.String jobID)

public java.lang.String getJobMasterIPandPort()

public java.lang.String waitAndGetJobMasterIPandPort(long timeLimit)

Class ZKJobMasterFinder