Examples with SingleInputGate org.apache.flink.runtime.io.network.partition.consumer.SingleInputGate used on opensource projects

Example 16 with SingleInputGate

use of org.apache.flink.runtime.io.network.partition.consumer.SingleInputGate in project flink by apache.

the class CreditBasedPartitionRequestClientHandlerTest method testReceiveBacklogAnnouncement.

/**
 * Verifies that {@link NettyMessage.BacklogAnnouncement} can be handled correctly.
 */
@Test
public void testReceiveBacklogAnnouncement() throws Exception {
    int bufferSize = 1024;
    int numBuffers = 10;
    NetworkBufferPool networkBufferPool = new NetworkBufferPool(numBuffers, bufferSize);
    SingleInputGate inputGate = new SingleInputGateBuilder().setSegmentProvider(networkBufferPool).build();
    RemoteInputChannel inputChannel = createRemoteInputChannel(inputGate, null);
    inputGate.setInputChannels(inputChannel);
    try {
        BufferPool bufferPool = networkBufferPool.createBufferPool(8, 8);
        inputGate.setBufferPool(bufferPool);
        inputGate.setupChannels();
        CreditBasedPartitionRequestClientHandler handler = new CreditBasedPartitionRequestClientHandler();
        handler.addInputChannel(inputChannel);
        assertEquals(2, inputChannel.getNumberOfAvailableBuffers());
        assertEquals(0, inputChannel.unsynchronizedGetFloatingBuffersAvailable());
        int backlog = 5;
        NettyMessage.BacklogAnnouncement announcement = new NettyMessage.BacklogAnnouncement(backlog, inputChannel.getInputChannelId());
        handler.channelRead(null, announcement);
        assertEquals(7, inputChannel.getNumberOfAvailableBuffers());
        assertEquals(7, inputChannel.getNumberOfRequiredBuffers());
        assertEquals(backlog, inputChannel.getSenderBacklog());
        assertEquals(5, inputChannel.unsynchronizedGetFloatingBuffersAvailable());
        backlog = 12;
        announcement = new NettyMessage.BacklogAnnouncement(backlog, inputChannel.getInputChannelId());
        handler.channelRead(null, announcement);
        assertEquals(10, inputChannel.getNumberOfAvailableBuffers());
        assertEquals(14, inputChannel.getNumberOfRequiredBuffers());
        assertEquals(backlog, inputChannel.getSenderBacklog());
        assertEquals(8, inputChannel.unsynchronizedGetFloatingBuffersAvailable());
    } finally {
        releaseResource(inputGate, networkBufferPool);
    }
}

Example 17 with SingleInputGate

use of org.apache.flink.runtime.io.network.partition.consumer.SingleInputGate in project flink by apache.

the class CreditBasedPartitionRequestClientHandlerTest method testNotifyCreditAvailable.

/**
 * Verifies that {@link RemoteInputChannel} is enqueued in the pipeline for notifying credits,
 * and verifies the behaviour of credit notification by triggering channel's writability
 * changed.
 */
@Test
public void testNotifyCreditAvailable() throws Exception {
    final CreditBasedPartitionRequestClientHandler handler = new CreditBasedPartitionRequestClientHandler();
    final NetworkBufferAllocator allocator = new NetworkBufferAllocator(handler);
    final EmbeddedChannel channel = new EmbeddedChannel(handler);
    final PartitionRequestClient client = new NettyPartitionRequestClient(channel, handler, mock(ConnectionID.class), mock(PartitionRequestClientFactory.class));
    final NetworkBufferPool networkBufferPool = new NetworkBufferPool(10, 32);
    final SingleInputGate inputGate = createSingleInputGate(2, networkBufferPool);
    final RemoteInputChannel[] inputChannels = new RemoteInputChannel[2];
    inputChannels[0] = createRemoteInputChannel(inputGate, client);
    inputChannels[1] = createRemoteInputChannel(inputGate, client);
    try {
        inputGate.setInputChannels(inputChannels);
        final BufferPool bufferPool = networkBufferPool.createBufferPool(6, 6);
        inputGate.setBufferPool(bufferPool);
        inputGate.setupChannels();
        inputChannels[0].requestSubpartition();
        inputChannels[1].requestSubpartition();
        // The two input channels should send partition requests
        assertTrue(channel.isWritable());
        Object readFromOutbound = channel.readOutbound();
        assertThat(readFromOutbound, instanceOf(PartitionRequest.class));
        assertEquals(inputChannels[0].getInputChannelId(), ((PartitionRequest) readFromOutbound).receiverId);
        assertEquals(2, ((PartitionRequest) readFromOutbound).credit);
        readFromOutbound = channel.readOutbound();
        assertThat(readFromOutbound, instanceOf(PartitionRequest.class));
        assertEquals(inputChannels[1].getInputChannelId(), ((PartitionRequest) readFromOutbound).receiverId);
        assertEquals(2, ((PartitionRequest) readFromOutbound).credit);
        // The buffer response will take one available buffer from input channel, and it will
        // trigger
        // requesting (backlog + numExclusiveBuffers - numAvailableBuffers) floating buffers
        final BufferResponse bufferResponse1 = createBufferResponse(TestBufferFactory.createBuffer(32), 0, inputChannels[0].getInputChannelId(), 1, allocator);
        final BufferResponse bufferResponse2 = createBufferResponse(TestBufferFactory.createBuffer(32), 0, inputChannels[1].getInputChannelId(), 1, allocator);
        handler.channelRead(mock(ChannelHandlerContext.class), bufferResponse1);
        handler.channelRead(mock(ChannelHandlerContext.class), bufferResponse2);
        assertEquals(2, inputChannels[0].getUnannouncedCredit());
        assertEquals(2, inputChannels[1].getUnannouncedCredit());
        channel.runPendingTasks();
        // The two input channels should notify credits availability via the writable channel
        readFromOutbound = channel.readOutbound();
        assertThat(readFromOutbound, instanceOf(AddCredit.class));
        assertEquals(inputChannels[0].getInputChannelId(), ((AddCredit) readFromOutbound).receiverId);
        assertEquals(2, ((AddCredit) readFromOutbound).credit);
        readFromOutbound = channel.readOutbound();
        assertThat(readFromOutbound, instanceOf(AddCredit.class));
        assertEquals(inputChannels[1].getInputChannelId(), ((AddCredit) readFromOutbound).receiverId);
        assertEquals(2, ((AddCredit) readFromOutbound).credit);
        assertNull(channel.readOutbound());
        ByteBuf channelBlockingBuffer = blockChannel(channel);
        // Trigger notify credits availability via buffer response on the condition of an
        // un-writable channel
        final BufferResponse bufferResponse3 = createBufferResponse(TestBufferFactory.createBuffer(32), 1, inputChannels[0].getInputChannelId(), 1, allocator);
        handler.channelRead(mock(ChannelHandlerContext.class), bufferResponse3);
        assertEquals(1, inputChannels[0].getUnannouncedCredit());
        assertEquals(0, inputChannels[1].getUnannouncedCredit());
        channel.runPendingTasks();
        // The input channel will not notify credits via un-writable channel
        assertFalse(channel.isWritable());
        assertNull(channel.readOutbound());
        // Flush the buffer to make the channel writable again
        channel.flush();
        assertSame(channelBlockingBuffer, channel.readOutbound());
        // The input channel should notify credits via channel's writability changed event
        assertTrue(channel.isWritable());
        readFromOutbound = channel.readOutbound();
        assertThat(readFromOutbound, instanceOf(AddCredit.class));
        assertEquals(1, ((AddCredit) readFromOutbound).credit);
        assertEquals(0, inputChannels[0].getUnannouncedCredit());
        assertEquals(0, inputChannels[1].getUnannouncedCredit());
        // no more messages
        assertNull(channel.readOutbound());
    } finally {
        releaseResource(inputGate, networkBufferPool);
        channel.close();
    }
}

Example 18 with SingleInputGate

use of org.apache.flink.runtime.io.network.partition.consumer.SingleInputGate in project flink by apache.

the class CreditBasedPartitionRequestClientHandlerTest method testReceiveBuffer.

/**
 * Verifies that {@link RemoteInputChannel#onBuffer(Buffer, int, int)} is called when a {@link
 * BufferResponse} is received.
 */
@Test
public void testReceiveBuffer() throws Exception {
    final NetworkBufferPool networkBufferPool = new NetworkBufferPool(10, 32);
    final SingleInputGate inputGate = createSingleInputGate(1, networkBufferPool);
    final RemoteInputChannel inputChannel = InputChannelBuilder.newBuilder().buildRemoteChannel(inputGate);
    try {
        inputGate.setInputChannels(inputChannel);
        final BufferPool bufferPool = networkBufferPool.createBufferPool(8, 8);
        inputGate.setBufferPool(bufferPool);
        inputGate.setupChannels();
        final CreditBasedPartitionRequestClientHandler handler = new CreditBasedPartitionRequestClientHandler();
        handler.addInputChannel(inputChannel);
        final int backlog = 2;
        final BufferResponse bufferResponse = createBufferResponse(TestBufferFactory.createBuffer(32), 0, inputChannel.getInputChannelId(), backlog, new NetworkBufferAllocator(handler));
        handler.channelRead(mock(ChannelHandlerContext.class), bufferResponse);
        assertEquals(1, inputChannel.getNumberOfQueuedBuffers());
        assertEquals(2, inputChannel.getSenderBacklog());
    } finally {
        releaseResource(inputGate, networkBufferPool);
    }
}

Example 19 with SingleInputGate

use of org.apache.flink.runtime.io.network.partition.consumer.SingleInputGate in project flink by apache.

the class CreditBasedPartitionRequestClientHandlerTest method testNotifyCreditAvailableAfterReleased.

/**
 * Verifies that {@link RemoteInputChannel} is enqueued in the pipeline, but {@link AddCredit}
 * message is not sent actually when this input channel is released.
 */
@Test
public void testNotifyCreditAvailableAfterReleased() throws Exception {
    final CreditBasedPartitionRequestClientHandler handler = new CreditBasedPartitionRequestClientHandler();
    final EmbeddedChannel channel = new EmbeddedChannel(handler);
    final PartitionRequestClient client = new NettyPartitionRequestClient(channel, handler, mock(ConnectionID.class), mock(PartitionRequestClientFactory.class));
    final NetworkBufferPool networkBufferPool = new NetworkBufferPool(10, 32);
    final SingleInputGate inputGate = createSingleInputGate(1, networkBufferPool);
    final RemoteInputChannel inputChannel = createRemoteInputChannel(inputGate, client);
    try {
        inputGate.setInputChannels(inputChannel);
        final BufferPool bufferPool = networkBufferPool.createBufferPool(6, 6);
        inputGate.setBufferPool(bufferPool);
        inputGate.setupChannels();
        inputChannel.requestSubpartition();
        // This should send the partition request
        Object readFromOutbound = channel.readOutbound();
        assertThat(readFromOutbound, instanceOf(PartitionRequest.class));
        assertEquals(2, ((PartitionRequest) readFromOutbound).credit);
        // Trigger request floating buffers via buffer response to notify credits available
        final BufferResponse bufferResponse = createBufferResponse(TestBufferFactory.createBuffer(32), 0, inputChannel.getInputChannelId(), 1, new NetworkBufferAllocator(handler));
        handler.channelRead(mock(ChannelHandlerContext.class), bufferResponse);
        assertEquals(2, inputChannel.getUnannouncedCredit());
        // Release the input channel
        inputGate.close();
        // it should send a close request after releasing the input channel,
        // but will not notify credits for a released input channel.
        readFromOutbound = channel.readOutbound();
        assertThat(readFromOutbound, instanceOf(CloseRequest.class));
        channel.runPendingTasks();
        assertNull(channel.readOutbound());
    } finally {
        releaseResource(inputGate, networkBufferPool);
        channel.close();
    }
}

Example 20 with SingleInputGate

use of org.apache.flink.runtime.io.network.partition.consumer.SingleInputGate in project flink by apache.

the class TestCheckpointedInputGateBuilder method buildMixedGate.

private SingleInputGate buildMixedGate(Integer... testChannelIds) throws IOException {
    Set<Integer> testChannelIdSet = new HashSet<>(Arrays.asList(testChannelIds));
    SingleInputGate gate = buildRemoteGate();
    InputChannel[] channels = new InputChannel[numChannels];
    for (int i = 0; i < numChannels; i++) {
        if (testChannelIdSet.contains(i)) {
            channels[i] = new TestInputChannel(gate, i, false, true);
        } else {
            channels[i] = gate.getChannel(i);
        }
    }
    gate.setInputChannels(channels);
    return gate;
}