Package org.apache.storm.daemon.supervisor

Class LocalContainer

java.lang.Object

org.apache.storm.daemon.supervisor.Container

org.apache.storm.daemon.supervisor.LocalContainer

All Implemented Interfaces:

Killable

public class LocalContainer
extends Container

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.storm.daemon.supervisor.Container

Container.ContainerType

Field Summary

Fields inherited from class org.apache.storm.daemon.supervisor.Container

assignment, conf, containerMemoryTracker, ops, port, resourceIsolationManager, runAsUser, supervisorId, supervisorPort, symlinksDisabled, topoConf, topologyId, type, workerId

Constructor Summary

Constructors

Constructor	Description
LocalContainer(Map<String,Object> conf, String supervisorId, int supervisorPort, int port, LocalAssignment assignment, IContext sharedContext, StormMetricsRegistry metricsRegistry, ContainerMemoryTracker containerMemoryTracker, Supervisor.Iface localSupervisor)

Method Summary

Modifier and Type	Method	Description
boolean	areAllProcessesDead()	Check whether all processes are dead.
protected void	createArtifactsLink()	Create symlink from the containers directory/artifacts to the artifacts directory.
protected void	createBlobstoreLinks()	Create symlinks for each of the blobs from the container's directory to corresponding links in the storm dist directory.
boolean	didMainProcessExit()	Return true if the main process exited, else false.
void	kill()	Kill the processes in this container nicely.
void	launch()	Launch the process for the first time.
void	relaunch()	Restart the processes in this container.
boolean	runProfiling(ProfileRequest request, boolean stop)	Run a profiling request.

Methods inherited from class org.apache.storm.daemon.supervisor.Container

cleanUp, cleanUpForRestart, deleteSavedWorkerUser, forceKill, getMemoryReservationMb, getMemoryUsageMb, getTotalTopologyMemoryReserved, getTotalTopologyMemoryUsed, getTotalWorkersForThisTopology, getWorkerId, getWorkerUser, isMemoryLimitViolated, readHeartbeat, readTopoConf, saveWorkerUser, setup, toString, updateMemoryAccounting, writeLogMetadata

Methods inherited from class java.lang.Object

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

Constructor Details

LocalContainer

public LocalContainer(Map<String,Object> conf,
 String supervisorId,
 int supervisorPort,
 int port,
 LocalAssignment assignment,
 IContext sharedContext,
 StormMetricsRegistry metricsRegistry,
 ContainerMemoryTracker containerMemoryTracker,
 Supervisor.Iface localSupervisor)
               throws IOException

Throws:

IOException

Method Details

createArtifactsLink

protected void createArtifactsLink()

Description copied from class: Container

Create symlink from the containers directory/artifacts to the artifacts directory.

Overrides:

createArtifactsLink in class Container

createBlobstoreLinks

protected void createBlobstoreLinks()

Description copied from class: Container

Create symlinks for each of the blobs from the container's directory to corresponding links in the storm dist directory.

Overrides:

createBlobstoreLinks in class Container

launch

public void launch()
            throws IOException

Description copied from class: Container

Launch the process for the first time. PREREQUISITE: setup has run and passed

Specified by:

launch in class Container

Throws:

IOException - on any error

kill

public void kill()
          throws IOException

Description copied from interface: Killable

Kill the processes in this container nicely. kill -15 equivalent

Specified by:

kill in interface Killable

Overrides:

kill in class Container

Throws:

IOException - on any error

areAllProcessesDead

public boolean areAllProcessesDead()
                            throws IOException

Description copied from interface: Killable

Check whether all processes are dead.

Specified by:

areAllProcessesDead in interface Killable

Overrides:

areAllProcessesDead in class Container

Returns:

true if all of the processes are dead, else false

Throws:

IOException - on any error

relaunch

public void relaunch()
              throws IOException

Description copied from class: Container

Restart the processes in this container. PREREQUISITE: cleanUpForRestart has run and passed

Specified by:

relaunch in class Container

Throws:

IOException - on any error

didMainProcessExit

public boolean didMainProcessExit()

Description copied from class: Container

Return true if the main process exited, else false. This is just best effort return false if unknown.

Specified by:

didMainProcessExit in class Container

runProfiling

public boolean runProfiling(ProfileRequest request,
 boolean stop)
                     throws IOException,
InterruptedException

Description copied from class: Container

Run a profiling request.

Specified by:

runProfiling in class Container

Parameters:

request - the request to run

stop - is this a stop request?

Returns:

true if it succeeded, else false

Throws:

IOException - on any error

InterruptedException - if running the command is interrupted.