org.apache.hadoop.yarn.server.nodemanager

Class NodeStatusUpdaterImpl

java.lang.Object

org.apache.hadoop.service.AbstractService

org.apache.hadoop.yarn.server.nodemanager.NodeStatusUpdaterImpl

All Implemented Interfaces:

Closeable, AutoCloseable, Service, NodeStatusUpdater

public class NodeStatusUpdaterImpl
extends AbstractService
implements NodeStatusUpdater

Nested Class Summary

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

Service.STATE

Field Summary

Fields

Modifier and Type	Field and Description
static String	YARN_NODEMANAGER_DURATION_TO_TRACK_STOPPED_CONTAINERS

Constructor Summary

Constructors

Constructor and Description
NodeStatusUpdaterImpl(Context context, Dispatcher dispatcher, NodeHealthCheckerService healthChecker, NodeManagerMetrics metrics)

Method Summary

Methods

Modifier and Type	Method and Description
void	addStoppedContainersToCache(ContainerId containerId)
void	clearFinishedContainersFromCache()
NodeStatus	getNodeStatusAndUpdateContainersInContext()
protected ResourceTracker	getRMClient()
long	getRMIdentifier()
boolean	isContainerRecentlyStopped(ContainerId containerId)
protected boolean	isTokenKeepAliveEnabled(Configuration conf)
protected void	rebootNodeStatusUpdater()
protected void	registerWithRM()
void	removeVeryOldStoppedContainersFromCache()
void	sendOutofBandHeartBeat()
protected void	serviceInit(Configuration conf) All initialization code needed by a service.
protected void	serviceStart() Actions called during the INITED to STARTED transition.
protected void	serviceStop() Actions called during the transition to the STOPPED state.
protected void	startStatusUpdater()
protected void	stopRMProxy()

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

YARN_NODEMANAGER_DURATION_TO_TRACK_STOPPED_CONTAINERS

public static final String YARN_NODEMANAGER_DURATION_TO_TRACK_STOPPED_CONTAINERS

See Also:

Constant Field Values

Constructor Detail

NodeStatusUpdaterImpl

public NodeStatusUpdaterImpl(Context context,
                     Dispatcher dispatcher,
                     NodeHealthCheckerService healthChecker,
                     NodeManagerMetrics metrics)

Method Detail

serviceInit

protected void serviceInit(Configuration conf)
                    throws Exception

Description copied from class: AbstractService

All initialization code needed by a service. This method will only ever be called once during the lifecycle of a specific service instance. Implementations do not need to be synchronized as the logic in AbstractService.init(Configuration) prevents re-entrancy. The base implementation checks to see if the subclass has created a new configuration instance, and if so, updates the base class value

Overrides:

serviceInit in class AbstractService

Parameters:

conf - configuration

Throws:

Exception - on a failure -these will be caught, possibly wrapped, and wil; trigger a service stop

serviceStart

protected void serviceStart()
                     throws Exception

Description copied from class: AbstractService

Actions called during the INITED to STARTED transition. This method will only ever be called once during the lifecycle of a specific service instance. Implementations do not need to be synchronized as the logic in AbstractService.start() prevents re-entrancy.

Overrides:

serviceStart in class AbstractService

Throws:

Exception - if needed -these will be caught, wrapped, and trigger a service stop

serviceStop

protected void serviceStop()
                    throws Exception

Description copied from class: AbstractService

Actions called during the transition to the STOPPED state. This method will only ever be called once during the lifecycle of a specific service instance. Implementations do not need to be synchronized as the logic in AbstractService.stop() prevents re-entrancy. Implementations MUST write this to be robust against failures, including checks for null references -and for the first failure to not stop other attempts to shut down parts of the service.

Overrides:

serviceStop in class AbstractService

Throws:

Exception - if needed -these will be caught and logged.

rebootNodeStatusUpdater

protected void rebootNodeStatusUpdater()

stopRMProxy

protected void stopRMProxy()

isTokenKeepAliveEnabled

@InterfaceAudience.Private
protected boolean isTokenKeepAliveEnabled(Configuration conf)

getRMClient

protected ResourceTracker getRMClient()
                               throws IOException

Throws:

IOException

registerWithRM

protected void registerWithRM()
                       throws YarnException,
                              IOException

Throws:

YarnException

IOException

getNodeStatusAndUpdateContainersInContext

public NodeStatus getNodeStatusAndUpdateContainersInContext()

Specified by:

getNodeStatusAndUpdateContainersInContext in interface NodeStatusUpdater

sendOutofBandHeartBeat

public void sendOutofBandHeartBeat()

Specified by:

sendOutofBandHeartBeat in interface NodeStatusUpdater

isContainerRecentlyStopped

public boolean isContainerRecentlyStopped(ContainerId containerId)

Specified by:

isContainerRecentlyStopped in interface NodeStatusUpdater

addStoppedContainersToCache

@InterfaceAudience.Private
public void addStoppedContainersToCache(ContainerId containerId)

clearFinishedContainersFromCache

public void clearFinishedContainersFromCache()

Specified by:

clearFinishedContainersFromCache in interface NodeStatusUpdater

removeVeryOldStoppedContainersFromCache

@InterfaceAudience.Private
public void removeVeryOldStoppedContainersFromCache()

getRMIdentifier

public long getRMIdentifier()

Specified by:

getRMIdentifier in interface NodeStatusUpdater

startStatusUpdater

protected void startStatusUpdater()