Examples with ExponentialBackoffRetry org.apache.flink.shaded.curator5.org.apache.curator.retry.ExponentialBackoffRetry used on opensource projects

Example 91 with ExponentialBackoffRetry

use of org.apache.flink.shaded.curator5.org.apache.curator.retry.ExponentialBackoffRetry in project xian by happyyangyuan.

the class TestInterProcessMutexBase method testReentrant.

@Test
public void testReentrant() throws Exception {
    CuratorFramework client = CuratorFrameworkFactory.newClient(server.getConnectString(), new ExponentialBackoffRetry(100, 3));
    client.start();
    try {
        InterProcessLock mutex = makeLock(client);
        foo(mutex);
        Assert.assertFalse(mutex.isAcquiredInThisProcess());
    } finally {
        client.close();
    }
}

Example 92 with ExponentialBackoffRetry

use of org.apache.flink.shaded.curator5.org.apache.curator.retry.ExponentialBackoffRetry in project xian by happyyangyuan.

the class TestInterProcessMutexBase method testWaitingProcessKilledServer.

@Test
public void testWaitingProcessKilledServer() throws Exception {
    final Timing timing = new Timing();
    final CuratorFramework client = CuratorFrameworkFactory.newClient(server.getConnectString(), timing.session(), timing.connection(), new ExponentialBackoffRetry(100, 3));
    try {
        client.start();
        final CountDownLatch latch = new CountDownLatch(1);
        ConnectionStateListener listener = new ConnectionStateListener() {

            @Override
            public void stateChanged(CuratorFramework client, ConnectionState newState) {
                if (newState == ConnectionState.LOST) {
                    latch.countDown();
                }
            }
        };
        client.getConnectionStateListenable().addListener(listener);
        final AtomicBoolean isFirst = new AtomicBoolean(true);
        ExecutorCompletionService<Object> service = new ExecutorCompletionService<Object>(Executors.newFixedThreadPool(2));
        for (int i = 0; i < 2; ++i) {
            service.submit(new Callable<Object>() {

                @Override
                public Object call() throws Exception {
                    InterProcessLock lock = makeLock(client);
                    lock.acquire();
                    try {
                        if (isFirst.compareAndSet(true, false)) {
                            timing.sleepABit();
                            server.stop();
                            Assert.assertTrue(timing.awaitLatch(latch));
                            server.restart();
                        }
                    } finally {
                        try {
                            lock.release();
                        } catch (Exception e) {
                        // ignore
                        }
                    }
                    return null;
                }
            });
        }
        for (int i = 0; i < 2; ++i) {
            service.take().get(timing.forWaiting().milliseconds(), TimeUnit.MILLISECONDS);
        }
    } finally {
        CloseableUtils.closeQuietly(client);
    }
}

Example 93 with ExponentialBackoffRetry

use of org.apache.flink.shaded.curator5.org.apache.curator.retry.ExponentialBackoffRetry in project xian by happyyangyuan.

the class TestLockACLs method createClient.

private CuratorFramework createClient(ACLProvider provider) throws Exception {
    RetryPolicy retryPolicy = new ExponentialBackoffRetry(1000, 3);
    CuratorFramework client = CuratorFrameworkFactory.builder().namespace("ns").connectString(server.getConnectString()).retryPolicy(retryPolicy).aclProvider(provider).build();
    client.start();
    return client;
}

Example 94 with ExponentialBackoffRetry

use of org.apache.flink.shaded.curator5.org.apache.curator.retry.ExponentialBackoffRetry in project xian by happyyangyuan.

the class TestRetryLoop method testExponentialBackoffRetryLimit.

@Test
public void testExponentialBackoffRetryLimit() {
    RetrySleeper sleeper = new RetrySleeper() {

        @Override
        public void sleepFor(long time, TimeUnit unit) throws InterruptedException {
            Assert.assertTrue(unit.toMillis(time) <= 100);
        }
    };
    ExponentialBackoffRetry retry = new ExponentialBackoffRetry(1, Integer.MAX_VALUE, 100);
    for (int i = 0; i >= 0; ++i) {
        retry.allowRetry(i, 0, sleeper);
    }
}

Example 95 with ExponentialBackoffRetry

use of org.apache.flink.shaded.curator5.org.apache.curator.retry.ExponentialBackoffRetry in project xian by happyyangyuan.

the class TestExhibitorEnsembleProvider method testSimple.

@Test
public void testSimple() throws Exception {
    Exhibitors exhibitors = new Exhibitors(Lists.newArrayList("foo", "bar"), 1000, dummyConnectionStringProvider);
    ExhibitorRestClient mockRestClient = new ExhibitorRestClient() {

        @Override
        public String getRaw(String hostname, int port, String uriPath, String mimeType) throws Exception {
            return "count=1&port=" + server.getPort() + "&server0=localhost";
        }
    };
    ExhibitorEnsembleProvider provider = new ExhibitorEnsembleProvider(exhibitors, mockRestClient, "/foo", 10, new RetryOneTime(1));
    provider.pollForInitialEnsemble();
    Timing timing = new Timing();
    CuratorZookeeperClient client = new CuratorZookeeperClient(provider, timing.session(), timing.connection(), null, new ExponentialBackoffRetry(timing.milliseconds(), 3));
    client.start();
    try {
        client.blockUntilConnectedOrTimedOut();
        client.getZooKeeper().exists("/", false);
    } catch (Exception e) {
        Assert.fail("provider.getConnectionString(): " + provider.getConnectionString() + " server.getPort(): " + server.getPort(), e);
    } finally {
        client.close();
    }
}