org.apache.flink.runtime.io.network.netty.exception.RemoteTransportException Java Examples

@Override
public void operationComplete(ChannelFuture future) throws Exception {
	if (future.isSuccess()) {
		handInChannel(future.channel());
	}
	else if (future.cause() != null) {
		notifyOfError(new RemoteTransportException(
				"Connecting to remote task manager + '" + connectionId.getAddress() +
						"' has failed. This might indicate that the remote task " +
						"manager has been lost.",
				connectionId.getAddress(), future.cause()));
	}
	else {
		notifyOfError(new LocalTransportException(
			String.format(
				"Connecting to remote task manager '%s' has been cancelled.",
				connectionId.getAddress()),
			null));
	}
}
 

@Override
public void operationComplete(ChannelFuture future) throws Exception {
	if (future.isSuccess()) {
		handInChannel(future.channel());
	}
	else if (future.cause() != null) {
		notifyOfError(new RemoteTransportException(
				"Connecting to remote task manager + '" + connectionId.getAddress() +
						"' has failed. This might indicate that the remote task " +
						"manager has been lost.",
				connectionId.getAddress(), future.cause()));
	}
	else {
		notifyOfError(new LocalTransportException(
			String.format(
				"Connecting to remote task manager '%s' has been cancelled.",
				connectionId.getAddress()),
			null));
	}
}
 

@Override
public void operationComplete(ChannelFuture future) throws Exception {
	if (future.isSuccess()) {
		handInChannel(future.channel());
	}
	else if (future.cause() != null) {
		notifyOfError(new RemoteTransportException(
				"Connecting to remote task manager + '" + connectionId.getAddress() +
						"' has failed. This might indicate that the remote task " +
						"manager has been lost.",
				connectionId.getAddress(), future.cause()));
	}
	else {
		notifyOfError(new LocalTransportException(
			String.format(
				"Connecting to remote task manager '%s' has been cancelled.",
				connectionId.getAddress()),
			null));
	}
}
 

@Override
public void channelInactive(ChannelHandlerContext ctx) throws Exception {
	// Unexpected close. In normal operation, the client closes the connection after all input
	// channels have been removed. This indicates a problem with the remote task manager.
	if (!inputChannels.isEmpty()) {
		final SocketAddress remoteAddr = ctx.channel().remoteAddress();

		notifyAllChannelsOfErrorAndClose(new RemoteTransportException(
				"Connection unexpectedly closed by remote task manager '" + remoteAddr + "'. "
						+ "This might indicate that the remote task manager was lost.",
				remoteAddr));
	}

	super.channelInactive(ctx);
}
 

@Override
public void channelInactive(ChannelHandlerContext ctx) throws Exception {
	// Unexpected close. In normal operation, the client closes the connection after all input
	// channels have been removed. This indicates a problem with the remote task manager.
	if (!inputChannels.isEmpty()) {
		final SocketAddress remoteAddr = ctx.channel().remoteAddress();

		notifyAllChannelsOfErrorAndClose(new RemoteTransportException(
			"Connection unexpectedly closed by remote task manager '" + remoteAddr + "'. "
				+ "This might indicate that the remote task manager was lost.", remoteAddr));
	}

	super.channelInactive(ctx);
}
 

/**
 * Verifies that "Connection reset by peer" Exceptions are special-cased and are reported as
 * an instance of {@link RemoteTransportException}.
 */
@Test
public void testConnectionResetByPeer() throws Throwable {
	EmbeddedChannel ch = createEmbeddedChannel();

	NetworkClientHandler handler = getClientHandler(ch);

	RemoteInputChannel rich = addInputChannel(handler);

	final Throwable[] error = new Throwable[1];

	// Verify the Exception
	doAnswer(new Answer<Void>() {
		@Override
		public Void answer(InvocationOnMock invocation) throws Throwable {
			Throwable cause = (Throwable) invocation.getArguments()[0];

			try {
				assertEquals(RemoteTransportException.class, cause.getClass());
				assertNotEquals("Connection reset by peer", cause.getMessage());

				assertEquals(IOException.class, cause.getCause().getClass());
				assertEquals("Connection reset by peer", cause.getCause().getMessage());
			}
			catch (Throwable t) {
				error[0] = t;
			}

			return null;
		}
	}).when(rich).onError(any(Throwable.class));

	ch.pipeline().fireExceptionCaught(new IOException("Connection reset by peer"));

	assertNull(error[0]);
}
 

@Override
public void channelInactive(ChannelHandlerContext ctx) throws Exception {
	// Unexpected close. In normal operation, the client closes the connection after all input
	// channels have been removed. This indicates a problem with the remote task manager.
	if (!inputChannels.isEmpty()) {
		final SocketAddress remoteAddr = ctx.channel().remoteAddress();

		notifyAllChannelsOfErrorAndClose(new RemoteTransportException(
				"Connection unexpectedly closed by remote task manager '" + remoteAddr + "'. "
						+ "This might indicate that the remote task manager was lost.",
				remoteAddr));
	}

	super.channelInactive(ctx);
}
 

@Override
public void channelInactive(ChannelHandlerContext ctx) throws Exception {
	// Unexpected close. In normal operation, the client closes the connection after all input
	// channels have been removed. This indicates a problem with the remote task manager.
	if (!inputChannels.isEmpty()) {
		final SocketAddress remoteAddr = ctx.channel().remoteAddress();

		notifyAllChannelsOfErrorAndClose(new RemoteTransportException(
			"Connection unexpectedly closed by remote task manager '" + remoteAddr + "'. "
				+ "This might indicate that the remote task manager was lost.", remoteAddr));
	}

	super.channelInactive(ctx);
}
 

/**
 * Verifies that "Connection reset by peer" Exceptions are special-cased and are reported as
 * an instance of {@link RemoteTransportException}.
 */
@Test
public void testConnectionResetByPeer() throws Throwable {
	EmbeddedChannel ch = createEmbeddedChannel();

	NetworkClientHandler handler = getClientHandler(ch);

	RemoteInputChannel rich = addInputChannel(handler);

	final Throwable[] error = new Throwable[1];

	// Verify the Exception
	doAnswer(new Answer<Void>() {
		@Override
		public Void answer(InvocationOnMock invocation) throws Throwable {
			Throwable cause = (Throwable) invocation.getArguments()[0];

			try {
				assertEquals(RemoteTransportException.class, cause.getClass());
				assertNotEquals("Connection reset by peer", cause.getMessage());

				assertEquals(IOException.class, cause.getCause().getClass());
				assertEquals("Connection reset by peer", cause.getCause().getMessage());
			}
			catch (Throwable t) {
				error[0] = t;
			}

			return null;
		}
	}).when(rich).onError(any(Throwable.class));

	ch.pipeline().fireExceptionCaught(new IOException("Connection reset by peer"));

	assertNull(error[0]);
}
 

@Override
public void channelInactive(ChannelHandlerContext ctx) throws Exception {
	// Unexpected close. In normal operation, the client closes the connection after all input
	// channels have been removed. This indicates a problem with the remote task manager.
	if (!inputChannels.isEmpty()) {
		final SocketAddress remoteAddr = ctx.channel().remoteAddress();

		notifyAllChannelsOfErrorAndClose(new RemoteTransportException(
			"Connection unexpectedly closed by remote task manager '" + remoteAddr + "'. "
				+ "This might indicate that the remote task manager was lost.", remoteAddr));
	}

	super.channelInactive(ctx);
}
 

/**
 * Verifies that "Connection reset by peer" Exceptions are special-cased and are reported as
 * an instance of {@link RemoteTransportException}.
 */
@Test
public void testConnectionResetByPeer() throws Throwable {
	EmbeddedChannel ch = createEmbeddedChannel();

	NetworkClientHandler handler = getClientHandler(ch);

	RemoteInputChannel rich = addInputChannel(handler);

	final Throwable[] error = new Throwable[1];

	// Verify the Exception
	doAnswer(new Answer<Void>() {
		@Override
		public Void answer(InvocationOnMock invocation) throws Throwable {
			Throwable cause = (Throwable) invocation.getArguments()[0];

			try {
				assertEquals(RemoteTransportException.class, cause.getClass());
				assertNotEquals("Connection reset by peer", cause.getMessage());

				assertEquals(IOException.class, cause.getCause().getClass());
				assertEquals("Connection reset by peer", cause.getCause().getMessage());
			}
			catch (Throwable t) {
				error[0] = t;
			}

			return null;
		}
	}).when(rich).onError(any(Throwable.class));

	ch.pipeline().fireExceptionCaught(new IOException("Connection reset by peer"));

	assertNull(error[0]);
}