org.apache.flink.runtime.io.network

Interface ConnectionManager

All Known Implementing Classes:

LocalConnectionManager, NettyConnectionManager

public interface ConnectionManager

The connection manager manages physical connections for the (logical) remote input channels at runtime.

Method Summary

Modifier and Type	Method and 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.

Method Detail

start

int start()
   throws IOException

Starts the internal related components for network connection and communication.

Returns:

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

Throws:

IOException

createPartitionRequestClient

PartitionRequestClient createPartitionRequestClient(ConnectionID connectionId)
                                             throws IOException,
                                                    InterruptedException

Creates a PartitionRequestClient instance for the given ConnectionID.

Throws:

IOException

InterruptedException

closeOpenChannelConnections

void closeOpenChannelConnections(ConnectionID connectionId)

Closes opened ChannelConnections in case of a resource release.

getNumberOfActiveConnections

int getNumberOfActiveConnections()

shutdown

void shutdown()
       throws IOException

Throws:

IOException