Package org.apache.flink.runtime.io.network

Class LocalConnectionManager

java.lang.Object

org.apache.flink.runtime.io.network.LocalConnectionManager

All Implemented Interfaces:

ConnectionManager

public class LocalConnectionManager
extends Object
implements ConnectionManager

A connection manager implementation to bypass setup overhead for task managers running in local execution mode.

Constructor Summary

Constructors

Constructor	Description
LocalConnectionManager()

Method Summary

Modifier and Type	Method	Description
void	closeOpenChannelConnections(ConnectionID connectionId)	Closes opened ChannelConnections in case of a resource release.
PartitionRequestClient	createPartitionRequestClient(ConnectionID connectionId)	Creates a PartitionRequestClient instance for the given ConnectionID.
int	getNumberOfActiveConnections()
void	shutdown()
int	start()	Starts the internal related components for network connection and communication.

Methods inherited from class java.lang.Object

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

Constructor Details

LocalConnectionManager

public LocalConnectionManager()

Method Details

start

public int start()

Description copied from interface: ConnectionManager

Starts the internal related components for network connection and communication.

Specified by:

start in interface ConnectionManager

Returns:

a port to connect to the task executor for shuffle data exchange, -1 if only local connection is possible.

createPartitionRequestClient

public PartitionRequestClient createPartitionRequestClient(ConnectionID connectionId)

Description copied from interface: ConnectionManager

Creates a PartitionRequestClient instance for the given ConnectionID.

Specified by:

createPartitionRequestClient in interface ConnectionManager

closeOpenChannelConnections

public void closeOpenChannelConnections(ConnectionID connectionId)

Description copied from interface: ConnectionManager

Closes opened ChannelConnections in case of a resource release.

Specified by:

closeOpenChannelConnections in interface ConnectionManager

getNumberOfActiveConnections

public int getNumberOfActiveConnections()

Specified by:

getNumberOfActiveConnections in interface ConnectionManager

shutdown

public void shutdown()

Specified by:

shutdown in interface ConnectionManager