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

Example 16 with InputChannel

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

the class InputGateMetrics method refreshAndGetTotal.

// ------------------------------------------------------------------------
// these methods are package private to make access from the nested classes faster
/**
 * Iterates over all input channels and collects the total number of queued buffers in a
 * best-effort way.
 *
 * @return total number of queued buffers
 */
long refreshAndGetTotal() {
    long total = 0;
    for (InputChannel channel : inputGate.getInputChannels().values()) {
        if (channel instanceof RemoteInputChannel) {
            RemoteInputChannel rc = (RemoteInputChannel) channel;
            total += rc.unsynchronizedGetNumberOfQueuedBuffers();
        }
    }
    return total;
}

Example 17 with InputChannel

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

the class NettyShuffleEnvironmentTest method testRegisterTaskWithLimitedBuffers.

private void testRegisterTaskWithLimitedBuffers(int bufferPoolSize) throws Exception {
    final NettyShuffleEnvironment network = new NettyShuffleEnvironmentBuilder().setNumNetworkBuffers(bufferPoolSize).build();
    final ConnectionManager connManager = createDummyConnectionManager();
    int channels = 2;
    int rp4Channels = 4;
    int floatingBuffers = network.getConfiguration().floatingNetworkBuffersPerGate();
    int exclusiveBuffers = network.getConfiguration().networkBuffersPerChannel();
    int expectedBuffers = channels * exclusiveBuffers + floatingBuffers;
    int expectedRp4Buffers = rp4Channels * exclusiveBuffers + floatingBuffers;
    // result partitions
    ResultPartition rp1 = createPartition(network, ResultPartitionType.PIPELINED, channels);
    ResultPartition rp2 = createPartition(network, fileChannelManager, ResultPartitionType.BLOCKING, channels);
    ResultPartition rp3 = createPartition(network, ResultPartitionType.PIPELINED_BOUNDED, channels);
    ResultPartition rp4 = createPartition(network, ResultPartitionType.PIPELINED_BOUNDED, rp4Channels);
    final ResultPartition[] resultPartitions = new ResultPartition[] { rp1, rp2, rp3, rp4 };
    // input gates
    SingleInputGate ig1 = createSingleInputGate(network, ResultPartitionType.PIPELINED, channels);
    SingleInputGate ig2 = createSingleInputGate(network, ResultPartitionType.BLOCKING, channels);
    SingleInputGate ig3 = createSingleInputGate(network, ResultPartitionType.PIPELINED_BOUNDED, channels);
    SingleInputGate ig4 = createSingleInputGate(network, ResultPartitionType.PIPELINED_BOUNDED, rp4Channels);
    InputChannel[] ic1 = new InputChannel[channels];
    InputChannel[] ic2 = new InputChannel[channels];
    InputChannel[] ic3 = new InputChannel[channels];
    InputChannel[] ic4 = new InputChannel[rp4Channels];
    final SingleInputGate[] inputGates = new SingleInputGate[] { ig1, ig2, ig3, ig4 };
    ic4[0] = createRemoteInputChannel(ig4, 0, rp1, connManager);
    ic4[1] = createRemoteInputChannel(ig4, 0, rp2, connManager);
    ic4[2] = createRemoteInputChannel(ig4, 0, rp3, connManager);
    ic4[3] = createRemoteInputChannel(ig4, 0, rp4, connManager);
    ig4.setInputChannels(ic4);
    ic1[0] = createRemoteInputChannel(ig1, 1, rp1, connManager);
    ic1[1] = createRemoteInputChannel(ig1, 1, rp4, connManager);
    ig1.setInputChannels(ic1);
    ic2[0] = createRemoteInputChannel(ig2, 1, rp2, connManager);
    ic2[1] = createRemoteInputChannel(ig2, 2, rp4, connManager);
    ig2.setInputChannels(ic2);
    ic3[0] = createRemoteInputChannel(ig3, 1, rp3, connManager);
    ic3[1] = createRemoteInputChannel(ig3, 3, rp4, connManager);
    ig3.setInputChannels(ic3);
    Task.setupPartitionsAndGates(resultPartitions, inputGates);
    // verify buffer pools for the result partitions
    assertEquals(Integer.MAX_VALUE, rp1.getBufferPool().getMaxNumberOfMemorySegments());
    assertEquals(Integer.MAX_VALUE, rp2.getBufferPool().getMaxNumberOfMemorySegments());
    assertEquals(expectedBuffers, rp3.getBufferPool().getMaxNumberOfMemorySegments());
    assertEquals(expectedRp4Buffers, rp4.getBufferPool().getMaxNumberOfMemorySegments());
    for (ResultPartition rp : resultPartitions) {
        assertEquals(rp.getNumberOfSubpartitions() + 1, rp.getBufferPool().getNumberOfRequiredMemorySegments());
        assertEquals(rp.getNumberOfSubpartitions() + 1, rp.getBufferPool().getNumBuffers());
    }
    // verify buffer pools for the input gates (NOTE: credit-based uses minimum required buffers
    // for exclusive buffers not managed by the buffer pool)
    assertEquals(1, ig1.getBufferPool().getNumberOfRequiredMemorySegments());
    assertEquals(1, ig2.getBufferPool().getNumberOfRequiredMemorySegments());
    assertEquals(1, ig3.getBufferPool().getNumberOfRequiredMemorySegments());
    assertEquals(1, ig4.getBufferPool().getNumberOfRequiredMemorySegments());
    assertEquals(floatingBuffers, ig1.getBufferPool().getMaxNumberOfMemorySegments());
    assertEquals(floatingBuffers, ig2.getBufferPool().getMaxNumberOfMemorySegments());
    assertEquals(floatingBuffers, ig3.getBufferPool().getMaxNumberOfMemorySegments());
    assertEquals(floatingBuffers, ig4.getBufferPool().getMaxNumberOfMemorySegments());
    verify(ig1, times(1)).setupChannels();
    verify(ig2, times(1)).setupChannels();
    verify(ig3, times(1)).setupChannels();
    verify(ig4, times(1)).setupChannels();
    for (ResultPartition rp : resultPartitions) {
        rp.release();
    }
    for (SingleInputGate ig : inputGates) {
        ig.close();
    }
    network.close();
}

Example 18 with InputChannel

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

the class InputGateFairnessTest method testFairConsumptionLocalChannels.

@Test
public void testFairConsumptionLocalChannels() throws Exception {
    final int numberOfChannels = 37;
    final int buffersPerChannel = 27;
    PipelinedResultPartition[] resultPartitions = IntStream.range(0, numberOfChannels).mapToObj(i -> (PipelinedResultPartition) new ResultPartitionBuilder().build()).toArray(PipelinedResultPartition[]::new);
    try (BufferConsumer bufferConsumer = createFilledFinishedBufferConsumer(42)) {
        // ----- create some source channels and fill them with one buffer each -----
        final PipelinedSubpartition[] sources = Arrays.stream(resultPartitions).map(resultPartition -> resultPartition.getAllPartitions()[0]).toArray(PipelinedSubpartition[]::new);
        // ----- create reading side -----
        final SingleInputGate gate = createFairnessVerifyingInputGate(numberOfChannels);
        final InputChannel[] inputChannels = IntStream.range(0, numberOfChannels).mapToObj(i -> InputChannelBuilder.newBuilder().setChannelIndex(i).setPartitionManager(resultPartitions[i].partitionManager).setPartitionId(resultPartitions[i].getPartitionId()).buildLocalChannel(gate)).toArray(InputChannel[]::new);
        for (ResultPartition rp : resultPartitions) {
            rp.setup();
        }
        // seed one initial buffer
        sources[12].add(bufferConsumer.copy());
        setupInputGate(gate, inputChannels);
        // read all the buffers and the EOF event
        for (int i = 0; i < numberOfChannels * buffersPerChannel; i++) {
            assertNotNull(gate.getNext());
            int min = Integer.MAX_VALUE;
            int max = 0;
            for (PipelinedSubpartition source : sources) {
                int size = source.getNumberOfQueuedBuffers();
                min = Math.min(min, size);
                max = Math.max(max, size);
            }
            assertTrue(max == min || max == min + 1);
            if (i % (2 * numberOfChannels) == 0) {
                // add three buffers to each channel, in random order
                fillRandom(sources, 3, bufferConsumer);
            }
        }
    // there is still more in the queues
    }
}

Example 19 with InputChannel

use of org.apache.flink.runtime.io.network.partition.consumer.InputChannel in project flink-mirror by flink-ci.

the class FloatingBuffersUsageGauge method calculateUsedBuffers.

@Override
public int calculateUsedBuffers(SingleInputGate inputGate) {
    int availableFloatingBuffers = 0;
    BufferPool bufferPool = inputGate.getBufferPool();
    if (bufferPool != null) {
        int requestedFloatingBuffers = bufferPool.bestEffortGetNumOfUsedBuffers();
        for (InputChannel ic : inputGate.getInputChannels().values()) {
            if (ic instanceof RemoteInputChannel) {
                availableFloatingBuffers += ((RemoteInputChannel) ic).unsynchronizedGetFloatingBuffersAvailable();
            }
        }
        return Math.max(0, requestedFloatingBuffers - availableFloatingBuffers);
    }
    return 0;
}

Example 20 with InputChannel

use of org.apache.flink.runtime.io.network.partition.consumer.InputChannel in project flink-mirror by flink-ci.

the class InputGateMetrics method refreshAndGetTotal.

// ------------------------------------------------------------------------
// these methods are package private to make access from the nested classes faster
/**
 * Iterates over all input channels and collects the total number of queued buffers in a
 * best-effort way.
 *
 * @return total number of queued buffers
 */
long refreshAndGetTotal() {
    long total = 0;
    for (InputChannel channel : inputGate.getInputChannels().values()) {
        if (channel instanceof RemoteInputChannel) {
            RemoteInputChannel rc = (RemoteInputChannel) channel;
            total += rc.unsynchronizedGetNumberOfQueuedBuffers();
        }
    }
    return total;
}