Examples with IgniteFuture org.apache.ignite.lang.IgniteFuture used on opensource projects

Example 36 with IgniteFuture

use of org.apache.ignite.lang.IgniteFuture in project ignite by apache.

the class ComputeAsyncExample method main.

/**
     * Executes example.
     *
     * @param args Command line arguments, none required.
     * @throws IgniteException If example execution failed.
     */
public static void main(String[] args) throws IgniteException {
    try (Ignite ignite = Ignition.start("examples/config/example-ignite.xml")) {
        System.out.println();
        System.out.println("Compute asynchronous example started.");
        // Enable asynchronous mode.
        IgniteCompute compute = ignite.compute().withAsync();
        Collection<IgniteFuture<?>> futs = new ArrayList<>();
        // Iterate through all words in the sentence and create runnable jobs.
        for (final String word : "Print words using runnable".split(" ")) {
            // Execute runnable on some node.
            compute.run(() -> {
                System.out.println();
                System.out.println(">>> Printing '" + word + "' on this node from ignite job.");
            });
            futs.add(compute.future());
        }
        // Wait for completion of all futures.
        futs.forEach(IgniteFuture::get);
        System.out.println();
        System.out.println(">>> Finished printing words using runnable execution.");
        System.out.println(">>> Check all nodes for output (this node is also part of the cluster).");
    }
}

Example 37 with IgniteFuture

use of org.apache.ignite.lang.IgniteFuture in project ignite by apache.

the class GridDiscoveryManager method start.

/** {@inheritDoc} */
@Override
public void start(boolean activeOnStart) throws IgniteCheckedException {
    long totSysMemory = -1;
    try {
        totSysMemory = U.<Long>property(os, "totalPhysicalMemorySize");
    } catch (RuntimeException ignored) {
    // No-op.
    }
    ctx.addNodeAttribute(IgniteNodeAttributes.ATTR_PHY_RAM, totSysMemory);
    DiscoverySpi spi = getSpi();
    discoOrdered = discoOrdered();
    histSupported = historySupported();
    isLocDaemon = ctx.isDaemon();
    hasRslvrs = !ctx.config().isClientMode() && !F.isEmpty(ctx.config().getSegmentationResolvers());
    segChkFreq = ctx.config().getSegmentCheckFrequency();
    if (hasRslvrs) {
        if (segChkFreq < 0)
            throw new IgniteCheckedException("Segment check frequency cannot be negative: " + segChkFreq);
        if (segChkFreq > 0 && segChkFreq < 2000)
            U.warn(log, "Configuration parameter 'segmentCheckFrequency' is too low " + "(at least 2000 ms recommended): " + segChkFreq);
        int segResAttemp = ctx.config().getSegmentationResolveAttempts();
        if (segResAttemp < 1)
            throw new IgniteCheckedException("Segment resolve attempts cannot be negative or zero: " + segResAttemp);
        checkSegmentOnStart();
    }
    metricsUpdateTask = ctx.timeout().schedule(new MetricsUpdater(), METRICS_UPDATE_FREQ, METRICS_UPDATE_FREQ);
    spi.setMetricsProvider(createMetricsProvider());
    if (ctx.security().enabled()) {
        if (isSecurityCompatibilityMode())
            ctx.addNodeAttribute(ATTR_SECURITY_COMPATIBILITY_MODE, true);
        spi.setAuthenticator(new DiscoverySpiNodeAuthenticator() {

            @Override
            public SecurityContext authenticateNode(ClusterNode node, SecurityCredentials cred) {
                try {
                    return ctx.security().authenticateNode(node, cred);
                } catch (IgniteCheckedException e) {
                    throw U.convertException(e);
                }
            }

            @Override
            public boolean isGlobalNodeAuthentication() {
                return ctx.security().isGlobalNodeAuthentication();
            }
        });
    }
    spi.setListener(new DiscoverySpiListener() {

        private long gridStartTime;

        /** {@inheritDoc} */
        @Override
        public void onLocalNodeInitialized(ClusterNode locNode) {
            for (IgniteInClosure<ClusterNode> lsnr : localNodeInitLsnrs) lsnr.apply(locNode);
        }

        @Override
        public void onDiscovery(final int type, final long topVer, final ClusterNode node, final Collection<ClusterNode> topSnapshot, final Map<Long, Collection<ClusterNode>> snapshots, @Nullable DiscoverySpiCustomMessage spiCustomMsg) {
            DiscoveryCustomMessage customMsg = spiCustomMsg == null ? null : ((CustomMessageWrapper) spiCustomMsg).delegate();
            if (skipMessage(type, customMsg))
                return;
            final ClusterNode locNode = localNode();
            if (snapshots != null)
                topHist = snapshots;
            boolean verChanged;
            if (type == EVT_NODE_METRICS_UPDATED)
                verChanged = false;
            else {
                if (type != EVT_NODE_SEGMENTED && type != EVT_CLIENT_NODE_DISCONNECTED && type != EVT_CLIENT_NODE_RECONNECTED && type != DiscoveryCustomEvent.EVT_DISCOVERY_CUSTOM_EVT) {
                    minorTopVer = 0;
                    verChanged = true;
                } else
                    verChanged = false;
            }
            if (type == EVT_NODE_FAILED || type == EVT_NODE_LEFT) {
                for (DiscoCache c : discoCacheHist.values()) c.updateAlives(node);
                updateClientNodes(node.id());
            }
            final AffinityTopologyVersion nextTopVer;
            if (type == DiscoveryCustomEvent.EVT_DISCOVERY_CUSTOM_EVT) {
                assert customMsg != null;
                boolean incMinorTopVer = ctx.cache().onCustomEvent(customMsg, new AffinityTopologyVersion(topVer, minorTopVer));
                if (incMinorTopVer) {
                    minorTopVer++;
                    verChanged = true;
                }
                nextTopVer = new AffinityTopologyVersion(topVer, minorTopVer);
                if (verChanged)
                    ctx.cache().onDiscoveryEvent(type, node, nextTopVer);
            } else {
                nextTopVer = new AffinityTopologyVersion(topVer, minorTopVer);
                ctx.cache().onDiscoveryEvent(type, node, nextTopVer);
            }
            if (type == DiscoveryCustomEvent.EVT_DISCOVERY_CUSTOM_EVT) {
                for (Class cls = customMsg.getClass(); cls != null; cls = cls.getSuperclass()) {
                    List<CustomEventListener<DiscoveryCustomMessage>> list = customEvtLsnrs.get(cls);
                    if (list != null) {
                        for (CustomEventListener<DiscoveryCustomMessage> lsnr : list) {
                            try {
                                lsnr.onCustomEvent(nextTopVer, node, customMsg);
                            } catch (Exception e) {
                                U.error(log, "Failed to notify direct custom event listener: " + customMsg, e);
                            }
                        }
                    }
                }
            }
            final DiscoCache discoCache;
            // event notifications, since SPI notifies manager about all events from this listener.
            if (verChanged) {
                discoCache = createDiscoCache(locNode, topSnapshot);
                discoCacheHist.put(nextTopVer, discoCache);
                boolean set = updateTopologyVersionIfGreater(nextTopVer, discoCache);
                assert set || topVer == 0 : "Topology version has not been updated [this.topVer=" + topSnap + ", topVer=" + topVer + ", node=" + node + ", evt=" + U.gridEventName(type) + ']';
            } else
                // Current version.
                discoCache = discoCache();
            // If this is a local join event, just save it and do not notify listeners.
            if (type == EVT_NODE_JOINED && node.id().equals(locNode.id())) {
                if (gridStartTime == 0)
                    gridStartTime = getSpi().getGridStartTime();
                updateTopologyVersionIfGreater(new AffinityTopologyVersion(locNode.order()), discoCache);
                startLatch.countDown();
                DiscoveryEvent discoEvt = new DiscoveryEvent();
                discoEvt.node(ctx.discovery().localNode());
                discoEvt.eventNode(node);
                discoEvt.type(EVT_NODE_JOINED);
                discoEvt.topologySnapshot(topVer, new ArrayList<>(F.view(topSnapshot, FILTER_DAEMON)));
                locJoin.onDone(new T2<>(discoEvt, discoCache));
                return;
            } else if (type == EVT_CLIENT_NODE_DISCONNECTED) {
                assert locNode.isClient() : locNode;
                assert node.isClient() : node;
                ((IgniteKernal) ctx.grid()).onDisconnected();
                locJoin = new GridFutureAdapter<>();
                registeredCaches.clear();
                for (AffinityTopologyVersion histVer : discoCacheHist.keySet()) {
                    Object rmvd = discoCacheHist.remove(histVer);
                    assert rmvd != null : histVer;
                }
                topHist.clear();
                topSnap.set(new Snapshot(AffinityTopologyVersion.ZERO, createDiscoCache(locNode, Collections.<ClusterNode>emptySet())));
            } else if (type == EVT_CLIENT_NODE_RECONNECTED) {
                assert locNode.isClient() : locNode;
                assert node.isClient() : node;
                boolean clusterRestarted = gridStartTime != getSpi().getGridStartTime();
                gridStartTime = getSpi().getGridStartTime();
                ((IgniteKernal) ctx.grid()).onReconnected(clusterRestarted);
                ctx.cluster().clientReconnectFuture().listen(new CI1<IgniteFuture<?>>() {

                    @Override
                    public void apply(IgniteFuture<?> fut) {
                        try {
                            fut.get();
                            discoWrk.addEvent(type, nextTopVer, node, discoCache, topSnapshot, null);
                        } catch (IgniteException ignore) {
                        // No-op.
                        }
                    }
                });
                return;
            }
            if (type == EVT_CLIENT_NODE_DISCONNECTED || type == EVT_NODE_SEGMENTED || !ctx.clientDisconnected())
                discoWrk.addEvent(type, nextTopVer, node, discoCache, topSnapshot, customMsg);
        }
    });
    spi.setDataExchange(new DiscoverySpiDataExchange() {

        @Override
        public DiscoveryDataBag collect(DiscoveryDataBag dataBag) {
            assert dataBag != null;
            assert dataBag.joiningNodeId() != null;
            if (ctx.localNodeId().equals(dataBag.joiningNodeId())) {
                for (GridComponent c : ctx.components()) c.collectJoiningNodeData(dataBag);
            } else {
                for (GridComponent c : ctx.components()) c.collectGridNodeData(dataBag);
            }
            return dataBag;
        }

        @Override
        public void onExchange(DiscoveryDataBag dataBag) {
            if (ctx.localNodeId().equals(dataBag.joiningNodeId())) {
                //NodeAdded msg reached joining node after round-trip over the ring
                for (GridComponent c : ctx.components()) {
                    if (c.discoveryDataType() != null)
                        c.onGridDataReceived(dataBag.gridDiscoveryData(c.discoveryDataType().ordinal()));
                }
            } else {
                //discovery data from newly joined node has to be applied to the current old node
                for (GridComponent c : ctx.components()) {
                    if (c.discoveryDataType() != null) {
                        JoiningNodeDiscoveryData data = dataBag.newJoinerDiscoveryData(c.discoveryDataType().ordinal());
                        if (data != null)
                            c.onJoiningNodeDataReceived(data);
                    }
                }
            }
        }
    });
    startSpi();
    registeredDiscoSpi = true;
    try {
        U.await(startLatch);
    } catch (IgniteInterruptedException e) {
        throw new IgniteCheckedException("Failed to start discovery manager (thread has been interrupted).", e);
    }
    // Start segment check worker only if frequency is greater than 0.
    if (hasRslvrs && segChkFreq > 0) {
        segChkWrk = new SegmentCheckWorker();
        segChkThread = new IgniteThread(segChkWrk);
        segChkThread.start();
    }
    locNode = spi.getLocalNode();
    checkAttributes(discoCache().remoteNodes());
    ctx.service().initCompatibilityMode(discoCache().remoteNodes());
    // Start discovery worker.
    new IgniteThread(discoWrk).start();
    if (log.isDebugEnabled())
        log.debug(startInfo());
}

Example 38 with IgniteFuture

use of org.apache.ignite.lang.IgniteFuture in project ignite by apache.

the class ClusterGroupAbstractTest method forkjoin1.

/**
 * @param cnt Counter.
 * @throws Exception If failed.
 */
private void forkjoin1(AtomicInteger cnt) throws Exception {
    Collection<String> args = F.asList("a", "b", "c");
    IgniteFuture fut = compute(prj).applyAsync(clrJob, args, rdc);
    waitForExecution(fut);
    cnt.set(0);
    compute(prj).apply(clrJob, args, rdc);
    waitForValue(cnt, args.size());
}

Example 39 with IgniteFuture

use of org.apache.ignite.lang.IgniteFuture in project ignite by apache.

the class GridTaskExecutionSelfTest method testJobIdCollision.

/**
 * Test for https://issues.apache.org/jira/browse/IGNITE-1384
 *
 * @throws Exception If failed.
 */
public void testJobIdCollision() throws Exception {
    fail("Test refactoring is needed: https://issues.apache.org/jira/browse/IGNITE-4706");
    long locId = IgniteUuid.lastLocalId();
    ArrayList<IgniteFuture<Object>> futs = new ArrayList<>(2016);
    IgniteCompute compute = grid(1).compute(grid(1).cluster().forNodeId(grid(3).localNode().id()));
    for (int i = 0; i < 1000; i++) {
        futs.add(compute.callAsync(new IgniteCallable<Object>() {

            @JobContextResource
            ComputeJobContext ctx;

            boolean held;

            @Override
            public Object call() throws Exception {
                if (!held) {
                    ctx.holdcc(1000);
                    held = true;
                }
                return null;
            }
        }));
    }
    info("Finished first loop.");
    AtomicLong idx = U.field(IgniteUuid.class, "cntGen");
    idx.set(locId);
    IgniteCompute compute1 = grid(2).compute(grid(2).cluster().forNodeId(grid(3).localNode().id()));
    for (int i = 0; i < 100; i++) {
        futs.add(compute1.callAsync(new IgniteCallable<Object>() {

            @JobContextResource
            ComputeJobContext ctx;

            boolean held;

            @Override
            public Object call() throws Exception {
                if (!held) {
                    ctx.holdcc(1000);
                    held = true;
                }
                return null;
            }
        }));
    }
    for (IgniteFuture<Object> fut : futs) fut.get();
}

Example 40 with IgniteFuture

use of org.apache.ignite.lang.IgniteFuture in project ignite by apache.

the class GridTaskListenerSelfTest method testGridTaskListener.

/**
 * Checks that GridTaskListener is only called once per task.
 *
 * @throws Exception If failed.
 */
@SuppressWarnings({ "BusyWait", "unchecked" })
public void testGridTaskListener() throws Exception {
    final AtomicInteger cnt = new AtomicInteger(0);
    IgniteInClosure<IgniteFuture<?>> lsnr = new CI1<IgniteFuture<?>>() {

        @Override
        public void apply(IgniteFuture<?> fut) {
            assert fut != null;
            cnt.incrementAndGet();
        }
    };
    Ignite ignite = G.ignite(getTestIgniteInstanceName());
    assert ignite != null;
    ignite.compute().localDeployTask(TestTask.class, TestTask.class.getClassLoader());
    ComputeTaskFuture<?> fut = executeAsync(ignite.compute(), TestTask.class.getName(), null);
    fut.listen(lsnr);
    fut.get();
    while (cnt.get() == 0) {
        try {
            Thread.sleep(1000);
        } catch (InterruptedException e) {
            error("Got interrupted while sleep.", e);
            break;
        }
    }
    assert cnt.get() == 1 : "Unexpected GridTaskListener apply count [count=" + cnt.get() + ", expected=1]";
}