alluxio.master

Class MultiMasterLocalAlluxioCluster

java.lang.Object

alluxio.master.AbstractLocalAlluxioCluster

alluxio.master.MultiMasterLocalAlluxioCluster

@NotThreadSafe
public final class MultiMasterLocalAlluxioCluster
extends AbstractLocalAlluxioCluster

A local Alluxio cluster with multiple masters.

Field Summary

Fields inherited from class alluxio.master.AbstractLocalAlluxioCluster

LOG, mHome, mHostname, mMasterConf, mUfsCluster, mUserBlockSize, mWorker, mWorkerCapacityBytes, mWorkerConf, mWorkerThread

Constructor Summary

Constructors

Constructor and Description
MultiMasterLocalAlluxioCluster(long workerCapacityBytes, int masters, int userBlockSize)

Method Summary

Methods

Modifier and Type	Method and Description
FileSystem	getClient() Returns a FileSystem client.
int	getLeaderIndex()
LocalAlluxioMaster	getMaster() Gets the master which should be listening for RPC and Web requests.
String	getUri()
boolean	killLeader() Iterates over the masters in the order of master creation, kill the leader master.
boolean	killStandby() Iterates over the masters in the order of master creation, kill the first standby master.
protected void	startMaster(Configuration conf) Configures and starts a master.
protected void	startWorker(Configuration conf) Configures and starts a worker.
void	stopTFS() Stops the alluxio filesystem's service thread only.

Methods inherited from class alluxio.master.AbstractLocalAlluxioCluster

getMasterConf, newTestConf, resetContext, runWorker, setAlluxioHome, setHostname, setupTest, start, start, stop, stopUFS

Methods inherited from class java.lang.Object

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

Constructor Detail

MultiMasterLocalAlluxioCluster

public MultiMasterLocalAlluxioCluster(long workerCapacityBytes,
                              int masters,
                              int userBlockSize)

Parameters:

workerCapacityBytes - the capacity of the worker in bytes

masters - the number of the master

userBlockSize - the block size for a user

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

getUri

public String getUri()

Returns:

the URI of the master

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

getLeaderIndex

public int getLeaderIndex()

Returns:

index of leader master in mMasters, or -1 if there is no leader temporarily

killStandby

public boolean killStandby()

Iterates over the masters in the order of master creation, kill the first standby master.

Returns:

true if a standby master is successfully killed, otherwise, false

killLeader

public boolean killLeader()

Iterates over the masters in the order of master creation, kill the leader master.

Returns:

true if the leader master is successfully killed, false otherwise

startWorker

protected void startWorker(Configuration conf)
                    throws IOException,
                           ConnectionFailedException

Description copied from class: AbstractLocalAlluxioCluster

Configures and starts a worker.

Specified by:

startWorker in class AbstractLocalAlluxioCluster

Parameters:

conf - configuration of this test

Throws:

IOException - if an I/O error occurs

ConnectionFailedException - if network connection failed

startMaster

protected void startMaster(Configuration conf)
                    throws IOException

Description copied from class: AbstractLocalAlluxioCluster

Configures and starts a master.

Specified by:

startMaster in class AbstractLocalAlluxioCluster

Parameters:

conf - configuration of this test

Throws:

IOException - when the operation fails

stopTFS

public void stopTFS()
             throws Exception

Description copied from class: AbstractLocalAlluxioCluster

Stops the alluxio filesystem's service thread only.

Specified by:

stopTFS in class AbstractLocalAlluxioCluster

Throws:

Exception - when the operation fails