UnmanagedAMLauncher (Apache Hadoop Main 2.2.0 API)

```
public class UnmanagedAMLauncher
extends Object
```
The UnmanagedLauncher is a simple client that launches and unmanaged AM. An unmanagedAM is an AM that is not launched and managed by the RM. The client creates a new application on the RM and negotiates a new attempt id. Then it waits for the RM app state to reach be YarnApplicationState.ACCEPTED after which it spawns the AM in another process and passes it the container id via env variable Environment.CONTAINER_ID. The AM can be in any language. The AM can register with the RM using the attempt id obtained from the container id and proceed as normal. The client redirects app stdout and stderr to its own stdout and stderr and waits for the AM process to exit. Then it waits for the RM to report app completion.

Constructors
Constructor and Description
`UnmanagedAMLauncher()`
`UnmanagedAMLauncher(Configuration conf)`

Methods
Modifier and Type	Method and Description
`boolean`	`init(String[] args)`
`void`	`launchAM(ApplicationAttemptId attemptId)`
`static void`	`main(String[] args)`
`boolean`	`run()`

public UnmanagedAMLauncher(Configuration conf)
                    throws Exception

public UnmanagedAMLauncher()
                    throws Exception

public boolean init(String[] args)
             throws org.apache.commons.cli.ParseException

public void launchAM(ApplicationAttemptId attemptId)
              throws IOException,
                     YarnException

public boolean run()
            throws IOException,
                   YarnException

Class UnmanagedAMLauncher