Examples with MinMulticastFlowControlSupplier io.aeron.driver.MinMulticastFlowControlSupplier used on opensource projects

Example 6 with MinMulticastFlowControlSupplier

use of io.aeron.driver.MinMulticastFlowControlSupplier in project aeron by real-logic.

the class BasicAuctionClusteredServiceNode method main.

/**
 * Main method for launching the process.
 *
 * @param args passed to the process.
 */
@SuppressWarnings("try")
public static // tag::main[]
void main(final String[] args) {
    // <1>
    final int nodeId = parseInt(System.getProperty("aeron.cluster.tutorial.nodeId"));
    final String[] hostnames = System.getProperty("aeron.cluster.tutorial.hostnames", "localhost,localhost,localhost").split(// <2>
    ",");
    final String hostname = hostnames[nodeId];
    // <3>
    final File baseDir = new File(System.getProperty("user.dir"), "node" + nodeId);
    final String aeronDirName = CommonContext.getAeronDirectoryName() + "-" + nodeId + "-driver";
    // <4>
    final ShutdownSignalBarrier barrier = new ShutdownSignalBarrier();
    // end::main[]
    // tag::media_driver[]
    final MediaDriver.Context mediaDriverContext = new MediaDriver.Context().aeronDirectoryName(aeronDirName).threadingMode(ThreadingMode.SHARED).termBufferSparseFile(true).multicastFlowControlSupplier(new MinMulticastFlowControlSupplier()).terminationHook(barrier::signal).errorHandler(BasicAuctionClusteredServiceNode.errorHandler("Media Driver"));
    // end::media_driver[]
    final AeronArchive.Context replicationArchiveContext = new AeronArchive.Context().controlResponseChannel("aeron:udp?endpoint=" + hostname + ":0");
    // tag::archive[]
    final Archive.Context archiveContext = new Archive.Context().aeronDirectoryName(aeronDirName).archiveDir(new File(baseDir, "archive")).controlChannel(udpChannel(nodeId, hostname, ARCHIVE_CONTROL_PORT_OFFSET)).archiveClientContext(replicationArchiveContext).localControlChannel("aeron:ipc?term-length=64k").recordingEventsEnabled(false).threadingMode(ArchiveThreadingMode.SHARED);
    // end::archive[]
    // tag::archive_client[]
    final AeronArchive.Context aeronArchiveContext = new AeronArchive.Context().lock(NoOpLock.INSTANCE).controlRequestChannel(archiveContext.localControlChannel()).controlResponseChannel(archiveContext.localControlChannel()).aeronDirectoryName(aeronDirName);
    // end::archive_client[]
    // tag::consensus_module[]
    final ConsensusModule.Context consensusModuleContext = new ConsensusModule.Context().errorHandler(errorHandler("Consensus Module")).clusterMemberId(// <1>
    nodeId).clusterMembers(// <2>
    clusterMembers(Arrays.asList(hostnames))).clusterDir(// <3>
    new File(baseDir, "cluster")).ingressChannel(// <4>
    "aeron:udp?term-length=64k").logChannel(// <5>
    logControlChannel(nodeId, hostname, LOG_CONTROL_PORT_OFFSET)).replicationChannel(// <6>
    logReplicationChannel(hostname)).archiveContext(// <7>
    aeronArchiveContext.clone());
    // end::consensus_module[]
    // tag::clustered_service[]
    final ClusteredServiceContainer.Context clusteredServiceContext = new ClusteredServiceContainer.Context().aeronDirectoryName(// <1>
    aeronDirName).archiveContext(// <2>
    aeronArchiveContext.clone()).clusterDir(new File(baseDir, "cluster")).clusteredService(// <3>
    new BasicAuctionClusteredService()).errorHandler(errorHandler("Clustered Service"));
    // tag::running[]
    try (ClusteredMediaDriver clusteredMediaDriver = ClusteredMediaDriver.launch(mediaDriverContext, archiveContext, // <1>
    consensusModuleContext);
        ClusteredServiceContainer container = ClusteredServiceContainer.launch(// <2>
        clusteredServiceContext)) {
        System.out.println("[" + nodeId + "] Started Cluster Node on " + hostname + "...");
        // <3>
        barrier.await();
        System.out.println("[" + nodeId + "] Exiting");
    }
// end::running[]
}

Example 7 with MinMulticastFlowControlSupplier

use of io.aeron.driver.MinMulticastFlowControlSupplier in project aeron by real-logic.

the class MinFlowControlSystemTest method shouldRemoveDeadTaggedReceiverWithMinMulticastFlowControlStrategy.

@Test
@InterruptAfter(10)
void shouldRemoveDeadTaggedReceiverWithMinMulticastFlowControlStrategy() {
    final int numMessagesToSend = NUM_MESSAGES_PER_TERM * 3;
    int numMessagesLeftToSend = numMessagesToSend;
    int numFragmentsReadFromA = 0, numFragmentsReadFromB = 0;
    driverBContext.imageLivenessTimeoutNs(TimeUnit.MILLISECONDS.toNanos(500));
    driverAContext.multicastFlowControlSupplier(new MinMulticastFlowControlSupplier());
    launch();
    subscriptionA = clientA.addSubscription(MULTICAST_URI, STREAM_ID);
    subscriptionB = clientB.addSubscription(MULTICAST_URI, STREAM_ID);
    publication = clientA.addPublication(MULTICAST_URI, STREAM_ID);
    while (!subscriptionA.isConnected() || !subscriptionB.isConnected() || !publication.isConnected()) {
        Tests.yield();
    }
    boolean isBClosed = false;
    while (numFragmentsReadFromA < numMessagesToSend) {
        if (numMessagesLeftToSend > 0) {
            if (publication.offer(buffer, 0, buffer.capacity()) >= 0L) {
                numMessagesLeftToSend--;
            }
        }
        // A keeps up
        numFragmentsReadFromA += subscriptionA.poll(fragmentHandlerA, 10);
        // B receives up to 1/8 of the messages, then stops
        if (numFragmentsReadFromB < (numMessagesToSend / 8)) {
            numFragmentsReadFromB += subscriptionB.poll(fragmentHandlerB, 10);
        } else if (!isBClosed) {
            subscriptionB.close();
            isBClosed = true;
        }
    }
    verify(fragmentHandlerA, times(numMessagesToSend)).onFragment(any(DirectBuffer.class), anyInt(), eq(MESSAGE_LENGTH), any(Header.class));
}