Package org.apache.storm.daemon.supervisor

Class LocalContainerLauncher

java.lang.Object

org.apache.storm.daemon.supervisor.ContainerLauncher

org.apache.storm.daemon.supervisor.LocalContainerLauncher

public class LocalContainerLauncher
extends ContainerLauncher

Launch Containers in local mode.

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method	Description
Container	launchContainer(int port, LocalAssignment assignment, LocalState state)	Launch a container in a given slot.
Container	recoverContainer(int port, LocalAssignment assignment, LocalState state)	Recover a container for a running process.
Killable	recoverContainer(String workerId, LocalState localState)	Try to recover a container using just the worker ID.

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

make

Methods inherited from class java.lang.Object

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

Constructor Details

LocalContainerLauncher

public LocalContainerLauncher(Map<String,Object> conf,
 String supervisorId,
 int supervisorPort,
 IContext sharedContext,
 StormMetricsRegistry metricsRegistry,
 ContainerMemoryTracker containerMemoryTracker,
 Supervisor.Iface localSupervisor)

Method Details

launchContainer

public Container launchContainer(int port,
 LocalAssignment assignment,
 LocalState state)
                          throws IOException

Description copied from class: ContainerLauncher

Launch a container in a given slot.

Specified by:

launchContainer in class ContainerLauncher

Parameters:

port - the port to run this on

assignment - what to launch

state - the current state of the supervisor

Returns:

The container that can be used to manager the processes.

Throws:

IOException - on any error

recoverContainer

public Container recoverContainer(int port,
 LocalAssignment assignment,
 LocalState state)
                           throws IOException

Description copied from class: ContainerLauncher

Recover a container for a running process.

Specified by:

recoverContainer in class ContainerLauncher

Parameters:

port - the port the assignment is running on

assignment - the assignment that was launched

state - the current state of the supervisor

Returns:

The container that can be used to manage the processes.

Throws:

IOException - on any error

recoverContainer

public Killable recoverContainer(String workerId,
 LocalState localState)
                          throws IOException

Description copied from class: ContainerLauncher

Try to recover a container using just the worker ID. The result is really only useful for killing the container and so is returning a Killable. Even if a Container is returned do not case the result to Container because only the Killable APIs are guaranteed to work.

Specified by:

recoverContainer in class ContainerLauncher

Parameters:

workerId - the id of the worker to use

localState - the state of the running supervisor

Returns:

a Killable that can be used to kill the underlying container.

Throws:

IOException - on any error