alluxio.multi.process

Class Master

java.lang.Object

alluxio.multi.process.Master

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable

@ThreadSafe
public final class Master
extends java.lang.Object
implements java.io.Closeable

Class for running and interacting with an Alluxio master in a separate process.

Constructor Summary

Constructors

Constructor and Description
Master(java.io.File logsDir, java.util.Map<PropertyKey,java.lang.String> properties)

Method Summary

Modifier and Type	Method and Description
void	close()
java.util.Map<PropertyKey,java.lang.String>	getConf()
void	start() Launches the master process.
void	updateConf(PropertyKey key, java.lang.String value) Updates the master's configuration.

Methods inherited from class java.lang.Object

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

Constructor Detail

Master

public Master(java.io.File logsDir,
              java.util.Map<PropertyKey,java.lang.String> properties)
       throws java.io.IOException

Parameters:

logsDir - logs directory

properties - alluxio properties

Throws:

java.io.IOException

Method Detail

updateConf

public void updateConf(PropertyKey key,
                       @Nullable
                       java.lang.String value)

Updates the master's configuration. This update will take effect the next time the master is started.

Parameters:

key - the conf key to update

value - the value to set, or null to unset the key

start

public void start()

Launches the master process.

getConf

public java.util.Map<PropertyKey,java.lang.String> getConf()

Returns:

the configuration used by this master

close

public void close()

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface java.lang.AutoCloseable