Examples with EndpointChange io.reactivex.mantis.remote.observable.EndpointChange used on opensource projects

Example 1 with EndpointChange

use of io.reactivex.mantis.remote.observable.EndpointChange in project mantis by Netflix.

the class MasterClientWrapper method main.

public static void main(String[] args) throws InterruptedException {
    Properties zkProps = new Properties();
    zkProps.put("mantis.zookeeper.connectString", "ec2-50-19-255-1.compute-1.amazonaws.com:2181,ec2-54-235-159-245.compute-1.amazonaws.com:2181,ec2-50-19-255-97.compute-1.amazonaws.com:2181,ec2-184-73-152-248.compute-1.amazonaws.com:2181,ec2-50-17-247-179.compute-1.amazonaws.com:2181");
    zkProps.put("mantis.zookeeper.leader.announcement.path", "/leader");
    zkProps.put("mantis.zookeeper.root", "/mantis/master");
    String jobId = "GroupByIPNJ-12";
    MasterClientWrapper clientWrapper = new MasterClientWrapper(zkProps);
    clientWrapper.getMasterClientApi().flatMap(new Func1<MantisMasterClientApi, Observable<EndpointChange>>() {

        @Override
        public Observable<EndpointChange> call(MantisMasterClientApi mantisMasterClientApi) {
            Integer sinkStage = null;
            return mantisMasterClientApi.getSinkStageNum(jobId).take(// only need to figure out sink stage number once
            1).flatMap(new Func1<Integer, Observable<EndpointChange>>() {

                @Override
                public Observable<EndpointChange> call(Integer integer) {
                    logger.info("Getting sink locations for " + jobId);
                    return clientWrapper.getSinkLocations(jobId, integer, 0, 0);
                }
            });
        }
    }).toBlocking().subscribe((ep) -> {
        System.out.println("Endpoint Change -> " + ep);
    });
    Thread.sleep(50000);
}

Example 2 with EndpointChange

use of io.reactivex.mantis.remote.observable.EndpointChange in project mantis by Netflix.

the class StageExecutorsGroupByTest method testExecuteIntermediatStage.

@SuppressWarnings({ "rawtypes", "unchecked" })
@Test
public void testExecuteIntermediatStage() throws InterruptedException {
    // Note, this test has a timing issue, client starts
    // sending data before server is ready, resulting
    // in a RST (connection reset by peer)
    TestGroupByJob provider = new TestGroupByJob();
    Job<Pair> job = provider.getJobInstance();
    List<StageConfig<?, ?>> stages = job.getStages();
    PortSelectorWithinRange portSelector = new PortSelectorWithinRange(8000, 9000);
    final int publishPort = portSelector.acquirePort();
    final int consumerPort = portSelector.acquirePort();
    Observable<Observable<GroupedObservable<String, Integer>>> go = Observable.just(Observable.range(0, 10).groupBy(new Func1<Integer, String>() {

        @Override
        public String call(Integer t1) {
            if ((t1 % 2) == 0) {
                return "even";
            } else {
                return "odd";
            }
        }
    }));
    // mimic previous stage with a server
    ServeGroupedObservable<String, Integer> config = new ServeGroupedObservable.Builder<String, Integer>().keyEncoder(Codecs.string()).valueEncoder(Codecs.integer()).observable(go).build();
    RemoteRxServer server = new RemoteRxServer.Builder().addObservable(config).port(consumerPort).build();
    server.start();
    EndpointInjector staticEndpoints = new EndpointInjector() {

        @Override
        public Observable<EndpointChange> deltas() {
            return Observable.create(new OnSubscribe<EndpointChange>() {

                @Override
                public void call(Subscriber<? super EndpointChange> subscriber) {
                    subscriber.onNext(new EndpointChange(EndpointChange.Type.add, new Endpoint("localhost", consumerPort, "0")));
                    subscriber.onNext(new EndpointChange(EndpointChange.Type.add, new Endpoint("localhost", consumerPort, "1")));
                    subscriber.onCompleted();
                }
            });
        }
    };
    WorkerConsumer consumer = new WorkerConsumerRemoteObservable(null, staticEndpoints);
    WorkerPublisher producer = new WorkerPublisherRemoteObservable(publishPort, null, Observable.just(1), null);
    // execute source
    StageExecutors.executeIntermediate(consumer, stages.get(1), producer, new Context());
    ConnectToGroupedObservable<String, Integer> connectConfig = new ConnectToGroupedObservable.Builder<String, Integer>().host("localhost").port(publishPort).keyDecoder(Codecs.string()).valueDecoder(Codecs.integer()).build();
    Iterator<GroupedObservable<String, Integer>> iter = RemoteObservable.connect(connectConfig).getObservable().toBlocking().getIterator();
    // verify numbers are grouped by even/odd
    // even is first due to zero
    GroupedObservable<String, Integer> even = iter.next();
    Assert.assertEquals("even", even.getKey());
    Iterator<Integer> evenIter = even.toBlocking().getIterator();
    Assert.assertEquals(0, evenIter.next().intValue());
    Assert.assertEquals(4, evenIter.next().intValue());
    Assert.assertEquals(16, evenIter.next().intValue());
    Assert.assertEquals(36, evenIter.next().intValue());
    GroupedObservable<String, Integer> odd = iter.next();
    Assert.assertEquals("odd", odd.getKey());
    Iterator<Integer> oddIter = odd.toBlocking().getIterator();
    Assert.assertEquals(1, oddIter.next().intValue());
    Assert.assertEquals(9, oddIter.next().intValue());
    Assert.assertEquals(25, oddIter.next().intValue());
    Assert.assertEquals(49, oddIter.next().intValue());
    // should only have two groups
    Assert.assertEquals(false, iter.hasNext());
}

Example 3 with EndpointChange

use of io.reactivex.mantis.remote.observable.EndpointChange in project mantis by Netflix.

the class StageExecutorsTest method testExecuteIntermediatStage.

@SuppressWarnings({ "rawtypes", "unchecked" })
@Test
public void testExecuteIntermediatStage() throws InterruptedException {
    TestJob provider = new TestJob();
    Job<Integer> job = provider.getJobInstance();
    List<StageConfig<?, ?>> stages = job.getStages();
    PortSelectorWithinRange portSelector = new PortSelectorWithinRange(8000, 9000);
    final int publishPort = portSelector.acquirePort();
    final int consumerPort = portSelector.acquirePort();
    // mimic previous stage with a server
    RemoteRxServer server1 = RemoteObservable.serve(consumerPort, Observable.range(0, 10), Codecs.integer());
    server1.start();
    EndpointInjector staticEndpoints = new EndpointInjector() {

        @Override
        public Observable<EndpointChange> deltas() {
            return Observable.create(new OnSubscribe<EndpointChange>() {

                @Override
                public void call(Subscriber<? super EndpointChange> subscriber) {
                    subscriber.onNext(new EndpointChange(EndpointChange.Type.add, new Endpoint("localhost", consumerPort, "1")));
                    subscriber.onCompleted();
                }
            });
        }
    };
    WorkerConsumer consumer = new WorkerConsumerRemoteObservable(null, staticEndpoints);
    WorkerPublisher producer = new WorkerPublisherRemoteObservable(publishPort, null, Observable.just(1), null);
    // execute intermediate, flatten results
    StageExecutors.executeIntermediate(consumer, stages.get(1), producer, new Context());
    Iterator<Integer> iter = RemoteObservable.connect(new ConnectToObservable.Builder<Integer>().host("localhost").slotId("0").port(publishPort).decoder(Codecs.integer()).build()).getObservable().toBlocking().getIterator();
    // verify numbers are even
    Assert.assertEquals(0, iter.next().intValue());
    Assert.assertEquals(2, iter.next().intValue());
    Assert.assertEquals(4, iter.next().intValue());
}

Example 4 with EndpointChange

use of io.reactivex.mantis.remote.observable.EndpointChange in project mantis by Netflix.

the class StageExecutorsTest method testExecuteSink.

@SuppressWarnings({ "rawtypes", "unchecked" })
@Test
public void testExecuteSink() throws InterruptedException {
    TestJob provider = new TestJob();
    Job<Integer> job = provider.getJobInstance();
    List<StageConfig<?, ?>> stages = job.getStages();
    PortSelectorWithinRange portSelector = new PortSelectorWithinRange(8000, 9000);
    final int consumerPort = portSelector.acquirePort();
    // mimic previous stage with a server
    RemoteRxServer server1 = RemoteObservable.serve(consumerPort, Observable.range(0, 10), Codecs.integer());
    server1.start();
    EndpointInjector staticEndpoints = new EndpointInjector() {

        @Override
        public Observable<EndpointChange> deltas() {
            return Observable.create(new OnSubscribe<EndpointChange>() {

                @Override
                public void call(Subscriber<? super EndpointChange> subscriber) {
                    subscriber.onNext(new EndpointChange(EndpointChange.Type.add, new Endpoint("localhost", consumerPort, "1")));
                    subscriber.onCompleted();
                }
            });
        }
    };
    Action0 noOpAction = new Action0() {

        @Override
        public void call() {
        }
    };
    Action1<Throwable> noOpError = new Action1<Throwable>() {

        @Override
        public void call(Throwable t) {
        }
    };
    WorkerConsumer consumer = new WorkerConsumerRemoteObservable(null, staticEndpoints);
    // execute source
    StageExecutors.executeSink(consumer, stages.get(1), job.getSink(), new TestPortSelector(), new RxMetrics(), new Context(), noOpAction, null, null, noOpAction, noOpError);
    Iterator<Integer> iter = provider.getItemsWritten().iterator();
    // verify numbers are even
    Assert.assertEquals(0, iter.next().intValue());
    Assert.assertEquals(2, iter.next().intValue());
    Assert.assertEquals(4, iter.next().intValue());
}

Example 5 with EndpointChange

use of io.reactivex.mantis.remote.observable.EndpointChange in project mantis by Netflix.

the class Reconciliator method startReconciliation.

private void startReconciliation() {
    if (startedReconciliation.compareAndSet(false, true)) {
        logger.info("Starting reconciliation for name: " + name);
        running.increment();
        subscription = Observable.combineLatest(currentExpectedSet, connectionSet.activeConnections(), new Func2<Set<Endpoint>, Set<Endpoint>, Void>() {

            @Override
            public Void call(Set<Endpoint> expected, Set<Endpoint> actual) {
                reconciliationCheck.increment();
                boolean check = expected.equals(actual);
                logger.debug("Check result: " + check + ", size expected: " + expected.size() + " actual: " + actual.size() + ", for values expected: " + expected + " versus actual: " + actual);
                if (!check) {
                    // reconcile adds
                    Set<Endpoint> expectedDiff = new HashSet<Endpoint>(expected);
                    expectedDiff.removeAll(actual);
                    if (expectedDiff.size() > 0) {
                        for (Endpoint endpoint : expectedDiff) {
                            logger.info("Connection missing from expected set, adding missing connection: " + endpoint);
                            reconciledChanges.onNext(new EndpointChange(Type.add, endpoint));
                        }
                    }
                    // reconile removes
                    Set<Endpoint> actualDiff = new HashSet<Endpoint>(actual);
                    actualDiff.removeAll(expected);
                    if (actualDiff.size() > 0) {
                        for (Endpoint endpoint : actualDiff) {
                            logger.info("Unexpected connection in active set, removing connection: " + endpoint);
                            reconciledChanges.onNext(new EndpointChange(Type.complete, endpoint));
                        }
                    }
                }
                return null;
            }
        }).onErrorResumeNext(new Func1<Throwable, Observable<? extends Void>>() {

            @Override
            public Observable<? extends Void> call(Throwable throwable) {
                logger.error("caught error in Reconciliation for {}", name, throwable);
                return Observable.empty();
            }
        }).doOnCompleted(new Action0() {

            @Override
            public void call() {
                logger.error("onComplete in Reconciliation observable chain for {}", name);
                stopReconciliation();
            }
        }).subscribe();
    } else {
        logger.info("reconciliation already started for {}", name);
    }
}