alluxio.master

Class LocalAlluxioCluster

java.lang.Object

alluxio.master.AbstractLocalAlluxioCluster

alluxio.master.LocalAlluxioCluster

@NotThreadSafe
public final class LocalAlluxioCluster
extends AbstractLocalAlluxioCluster

Local Alluxio cluster for integration tests. Example to use

 // Create a cluster instance
 localAlluxioCluster = new LocalAlluxioCluster(WORKER_CAPACITY_BYTES, BLOCK_SIZE_BYTES);
 // If you have special conf parameter to set for integration tests:
 Configuration testConf = localAlluxioCluster.newTestConf();
 testConf.set(Constants.USER_FILE_BUFFER_BYTES, String.valueOf(BUFFER_BYTES));
 // After setting up the test conf, start this local cluster:
 localAlluxioCluster.start(testConf);
 

Field Summary

Fields inherited from class alluxio.master.AbstractLocalAlluxioCluster

LOG, mHostname, mUfsCluster, mWorkDirectory, mWorkers

Constructor Summary

Constructors

Constructor and Description
LocalAlluxioCluster() Runs a test Alluxio cluster with a single Alluxio worker.
LocalAlluxioCluster(int numWorkers)

Method Summary

Methods

Modifier and Type	Method and Description
String	getAlluxioHome()
FileSystem	getClient() Returns a FileSystem client.
String	getHostname()
LocalAlluxioMaster	getMaster() Gets the master which should be listening for RPC and Web requests.
int	getMasterRpcPort()
String	getMasterURI()
AlluxioWorkerService	getWorker()
WorkerNetAddress	getWorkerAddress()
protected void	startMaster() Configures and starts a master.
protected void	startWorkers() Configures and starts the workers.
void	stop() Stops both the alluxio and underfs service threads.
void	stopFS() Stops the alluxio filesystem's service thread only.

Methods inherited from class alluxio.master.AbstractLocalAlluxioCluster

initConfiguration, reset, runWorkers, setAlluxioWorkDirectory, setHostname, setupTest, start, stopUFS

Methods inherited from class java.lang.Object

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

Constructor Detail

LocalAlluxioCluster

public LocalAlluxioCluster()

Runs a test Alluxio cluster with a single Alluxio worker.

LocalAlluxioCluster

public LocalAlluxioCluster(int numWorkers)

Parameters:

numWorkers - the number of workers to run

Method Detail

getClient

public FileSystem getClient()
                     throws IOException

Description copied from class: AbstractLocalAlluxioCluster

Returns a FileSystem client.

Specified by:

getClient in class AbstractLocalAlluxioCluster

Returns:

a FileSystem client

Throws:

IOException - when the operation fails

getMaster

public LocalAlluxioMaster getMaster()

Description copied from class: AbstractLocalAlluxioCluster

Gets the master which should be listening for RPC and Web requests.

Specified by:

getMaster in class AbstractLocalAlluxioCluster

getHostname

public String getHostname()

Returns:

the hostname of the cluster

getMasterURI

public String getMasterURI()

Returns:

the URI of the master

getMasterRpcPort

public int getMasterRpcPort()

Returns:

the RPC port of the master

getAlluxioHome

public String getAlluxioHome()

Returns:

the home path to Alluxio

getWorker

public AlluxioWorkerService getWorker()

Returns:

the first worker

getWorkerAddress

public WorkerNetAddress getWorkerAddress()

Returns:

the address of the first worker

startMaster

protected void startMaster()
                    throws IOException

Description copied from class: AbstractLocalAlluxioCluster

Configures and starts a master.

Specified by:

startMaster in class AbstractLocalAlluxioCluster

Throws:

IOException - when the operation fails

startWorkers

protected void startWorkers()
                     throws IOException,
                            ConnectionFailedException

Description copied from class: AbstractLocalAlluxioCluster

Configures and starts the workers.

Specified by:

startWorkers in class AbstractLocalAlluxioCluster

Throws:

IOException - if an I/O error occurs

ConnectionFailedException - if network connection failed

stopFS

public void stopFS()
            throws Exception

Description copied from class: AbstractLocalAlluxioCluster

Stops the alluxio filesystem's service thread only.

Specified by:

stopFS in class AbstractLocalAlluxioCluster

Throws:

Exception - when the operation fails

stop

public void stop()
          throws Exception

Description copied from class: AbstractLocalAlluxioCluster

Stops both the alluxio and underfs service threads.

Overrides:

stop in class AbstractLocalAlluxioCluster

Throws:

Exception - when the operation fails