Package alluxio.grpc

Class GrpcChannelPool

java.lang.Object

alluxio.grpc.GrpcChannelPool

@ThreadSafe
public class GrpcChannelPool
extends java.lang.Object

Used to provide gRPC level connection management and pooling facilities. This class is used internally by GrpcChannelBuilder and GrpcChannel.

Field Summary

Fields

Modifier and Type	Field	Description
static GrpcChannelPool	INSTANCE

Method Summary

Modifier and Type	Method	Description
GrpcChannel	acquireChannel(GrpcNetworkGroup networkGroup, GrpcServerAddress serverAddress, AlluxioConfiguration conf, boolean alwaysEnableTLS)	Acquires and increases the ref-count for the ManagedChannel.
void	releaseConnection(GrpcChannelKey channelKey)	Decreases the ref-count of the ManagedChannel for the given address.

Methods inherited from class java.lang.Object

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

Field Detail

INSTANCE

public static final GrpcChannelPool INSTANCE

Method Detail

acquireChannel

public GrpcChannel acquireChannel(GrpcNetworkGroup networkGroup,
                                  GrpcServerAddress serverAddress,
                                  AlluxioConfiguration conf,
                                  boolean alwaysEnableTLS)

Acquires and increases the ref-count for the ManagedChannel.

Parameters:

networkGroup - network group

serverAddress - server address

conf - the Alluxio configuration

alwaysEnableTLS - whether to always enable TLS

Returns:

a GrpcChannel

releaseConnection

public void releaseConnection(GrpcChannelKey channelKey)

Decreases the ref-count of the ManagedChannel for the given address. It shuts down the underlying channel if reference count reaches zero.

Parameters:

channelKey - the connection key