Package org.apache.hadoop.yarn.server.nodemanager

Class NodeLocalVolumeMonitorImpl

java.lang.Object

org.apache.hadoop.service.AbstractService

org.apache.hadoop.yarn.server.nodemanager.NodeLocalVolumeMonitorImpl

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, org.apache.hadoop.service.Service, NodeLocalVolumeMonitor

public class NodeLocalVolumeMonitorImpl
extends org.apache.hadoop.service.AbstractService
implements NodeLocalVolumeMonitor

Implementation of the node local volume monitor. It periodically tracks the MFS local volume of the node and cleans up it.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.hadoop.service.Service

org.apache.hadoop.service.Service.STATE

Field Summary

Fields

Modifier and Type	Field	Description
static java.lang.String	jobIdStrPrefix
static java.lang.String	MAPR_LOCALOUTPUT_DIR_DEFAULT
static java.lang.String	MAPR_LOCALOUTPUT_DIR_PARAM
static java.lang.String	MAPR_LOCALSPILL_DIR_DEFAULT
static java.lang.String	MAPR_LOCALSPILL_DIR_PARAM
static java.lang.String	MAPR_MAPRED_LOCAL_VOLUME_PATH
static java.lang.String	MAPR_NM_LOCAL_VOLUME_PATH
static java.lang.String	MAPR_UNCOMPRESSED_SUFFIX

Constructor Summary

Constructors

Constructor	Description
NodeLocalVolumeMonitorImpl(Context context)	Initialize the node local volume monitor.

Method Summary

Modifier and Type	Method	Description
protected void	serviceInit(org.apache.hadoop.conf.Configuration conf)	Initialize the service with the proper parameters.
protected void	serviceStart()	Start the thread that does the node local volume monitoring.
protected void	serviceStop()	Stop the thread that does the node local volume monitoring.

Methods inherited from class org.apache.hadoop.service.AbstractService

close, getBlockers, getConfig, getFailureCause, getFailureState, getLifecycleHistory, getName, getServiceState, getStartTime, init, isInState, noteFailure, putBlocker, registerGlobalListener, registerServiceListener, removeBlocker, setConfig, start, stop, toString, unregisterGlobalListener, unregisterServiceListener, waitForServiceToStop

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hadoop.service.Service

close, getBlockers, getConfig, getFailureCause, getFailureState, getLifecycleHistory, getName, getServiceState, getStartTime, init, isInState, registerServiceListener, start, stop, unregisterServiceListener, waitForServiceToStop

Field Detail

MAPR_LOCALOUTPUT_DIR_PARAM

public static final java.lang.String MAPR_LOCALOUTPUT_DIR_PARAM

See Also:

Constant Field Values

MAPR_LOCALOUTPUT_DIR_DEFAULT

public static final java.lang.String MAPR_LOCALOUTPUT_DIR_DEFAULT

See Also:

Constant Field Values

MAPR_LOCALSPILL_DIR_PARAM

public static final java.lang.String MAPR_LOCALSPILL_DIR_PARAM

See Also:

Constant Field Values

MAPR_LOCALSPILL_DIR_DEFAULT

public static final java.lang.String MAPR_LOCALSPILL_DIR_DEFAULT

See Also:

Constant Field Values

MAPR_UNCOMPRESSED_SUFFIX

public static final java.lang.String MAPR_UNCOMPRESSED_SUFFIX

See Also:

Constant Field Values

MAPR_MAPRED_LOCAL_VOLUME_PATH

public static final java.lang.String MAPR_MAPRED_LOCAL_VOLUME_PATH

See Also:

Constant Field Values

MAPR_NM_LOCAL_VOLUME_PATH

public static final java.lang.String MAPR_NM_LOCAL_VOLUME_PATH

See Also:

Constant Field Values

jobIdStrPrefix

public static final java.lang.String jobIdStrPrefix

See Also:

Constant Field Values

Constructor Detail

NodeLocalVolumeMonitorImpl

public NodeLocalVolumeMonitorImpl(Context context)

Initialize the node local volume monitor.

Method Detail

serviceInit

protected void serviceInit(org.apache.hadoop.conf.Configuration conf)
                    throws java.lang.Exception

Initialize the service with the proper parameters.

Overrides:

serviceInit in class org.apache.hadoop.service.AbstractService

Throws:

java.lang.Exception

serviceStart

protected void serviceStart()
                     throws java.lang.Exception

Start the thread that does the node local volume monitoring.

Overrides:

serviceStart in class org.apache.hadoop.service.AbstractService

Throws:

java.lang.Exception

serviceStop

protected void serviceStop()
                    throws java.lang.Exception

Stop the thread that does the node local volume monitoring.

Overrides:

serviceStop in class org.apache.hadoop.service.AbstractService

Throws:

java.lang.Exception