alluxio.master

Class AbstractLocalAlluxioCluster

java.lang.Object

alluxio.master.AbstractLocalAlluxioCluster

Direct Known Subclasses:

LocalAlluxioCluster, MultiMasterLocalAlluxioCluster

@NotThreadSafe
public abstract class AbstractLocalAlluxioCluster
extends Object

Local Alluxio cluster.

Field Summary

Fields

Modifier and Type	Field and Description
protected static org.slf4j.Logger	LOG
protected String	mHostname
protected UnderFileSystemCluster	mUfsCluster
protected String	mWorkDirectory
protected List<AlluxioWorkerService>	mWorkers

Constructor Summary

Constructors

Constructor and Description
AbstractLocalAlluxioCluster(int numWorkers)

Method Summary

Methods

Modifier and Type	Method and Description
abstract FileSystem	getClient() Returns a FileSystem client.
protected abstract LocalAlluxioMaster	getMaster() Gets the master which should be listening for RPC and Web requests.
void	initConfiguration() Creates a default Configuration for testing.
protected void	reset() Resets the cluster to original state.
protected void	runWorkers() Runs workers.
protected void	setAlluxioWorkDirectory() Sets Alluxio work directory.
protected void	setHostname() Sets hostname.
protected void	setupTest() Sets up corresponding directories for tests.
void	start() Starts both master and a worker using the configurations in test conf respectively.
protected abstract void	startMaster() Configures and starts a master.
protected abstract void	startWorkers() Configures and starts the workers.
void	stop() Stops both the alluxio and underfs service threads.
abstract void	stopFS() Stops the alluxio filesystem's service thread only.
protected void	stopUFS() Cleans up the underfs cluster test folder only.

Methods inherited from class java.lang.Object

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

Field Detail

LOG

protected static final org.slf4j.Logger LOG

mWorkers

protected List<AlluxioWorkerService> mWorkers

mUfsCluster

protected UnderFileSystemCluster mUfsCluster

mWorkDirectory

protected String mWorkDirectory

mHostname

protected String mHostname

Constructor Detail

AbstractLocalAlluxioCluster

public AbstractLocalAlluxioCluster(int numWorkers)

Parameters:

numWorkers - the number of workers to run

Method Detail

start

public void start()
           throws IOException,
                  ConnectionFailedException

Starts both master and a worker using the configurations in test conf respectively.

Throws:

IOException - if an I/O error occurs

ConnectionFailedException - if network connection failed

startMaster

protected abstract void startMaster()
                             throws IOException

Configures and starts a master.

Throws:

IOException - when the operation fails

startWorkers

protected abstract void startWorkers()
                              throws IOException,
                                     ConnectionFailedException

Configures and starts the workers.

Throws:

IOException - if an I/O error occurs

ConnectionFailedException - if network connection failed

setupTest

protected void setupTest()
                  throws IOException

Sets up corresponding directories for tests.

Throws:

IOException - when creating or deleting dirs failed

stop

public void stop()
          throws Exception

Stops both the alluxio and underfs service threads.

Throws:

Exception - when the operation fails

stopFS

public abstract void stopFS()
                     throws Exception

Stops the alluxio filesystem's service thread only.

Throws:

Exception - when the operation fails

stopUFS

protected void stopUFS()
                throws Exception

Cleans up the underfs cluster test folder only.

Throws:

Exception - when the operation fails

initConfiguration

public void initConfiguration()
                       throws IOException

Creates a default Configuration for testing.

Throws:

IOException - when the operation fails

runWorkers

protected void runWorkers()
                   throws IOException,
                          ConnectionFailedException

Runs workers.

Throws:

IOException - if an I/O error occurs

ConnectionFailedException - if network connection failed

getClient

public abstract FileSystem getClient()
                              throws IOException

Returns a FileSystem client.

Returns:

a FileSystem client

Throws:

IOException - when the operation fails

getMaster

protected abstract LocalAlluxioMaster getMaster()

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

reset

protected void reset()

Resets the cluster to original state.

setHostname

protected void setHostname()

Sets hostname.

setAlluxioWorkDirectory

protected void setAlluxioWorkDirectory()

Sets Alluxio work directory.