Package org.apache.zookeeper.test.ClientBase

Examples of org.apache.zookeeper.test.ClientBase.CountdownWatcher

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    {
        final Semaphore sem = new Semaphore(0);

        QuorumUtil qu = new QuorumUtil(1);
        qu.startAll();
        CountdownWatcher watcher1 = new CountdownWatcher();
        CountdownWatcher watcher2 = new CountdownWatcher();
        CountdownWatcher watcher3 = new CountdownWatcher();

        int index = 1;
        while(qu.getPeer(index).peer.leader == null) {
            index++;
        }
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        qu = new QuorumUtil(1);
        startAll();

        for (int i = 0; i < zkClients.length; i++) {
            zkClientWatchers[i] = new CountdownWatcher();
            PeerStruct peer = qu.getPeer(i + 1);
            zkClients[i] = new ZooKeeper(
                    "127.0.0.1:" + peer.clientPort,
                    ClientTest.CONNECTION_TIMEOUT, zkClientWatchers[i]);
        }
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            super(name);
        }

        public void run() {
            try {
                CountdownWatcher watcher = new CountdownWatcher();
                zk = new TestableZooKeeper(qb.hostPort, CONNECTION_TIMEOUT,
                        watcher);
                watcher.waitForConnected(CONNECTION_TIMEOUT);
                while(bang) {
                    incOutstanding(); // before create otw race
                    zk.create("/test-", new byte[0], Ids.OPEN_ACL_UNSAFE,
                            CreateMode.PERSISTENT_SEQUENTIAL, this, null);
                }
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     *
     * @throws Exception
     */
    @Test
    public void testLaggingFollowerResyncsUnderNewEpoch() throws Exception {
        CountdownWatcher watcher1 = new CountdownWatcher();
        CountdownWatcher watcher2 = new CountdownWatcher();
        CountdownWatcher watcher3 = new CountdownWatcher();

        QuorumUtil qu = new QuorumUtil(1);
        qu.shutdownAll();

        qu.start(1);
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    {
        final Semaphore sem = new Semaphore(0);

        QuorumUtil qu = new QuorumUtil(1);
        qu.startAll();
        CountdownWatcher watcher1 = new CountdownWatcher();
        CountdownWatcher watcher2 = new CountdownWatcher();
        CountdownWatcher watcher3 = new CountdownWatcher();

        int index = 1;
        while(qu.getPeer(index).peer.leader == null) {
            index++;
        }
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    {
        final Semaphore sem = new Semaphore(0);

        QuorumUtil qu = new QuorumUtil(1);
        qu.startAll();
        CountdownWatcher watcher1 = new CountdownWatcher();
        CountdownWatcher watcher2 = new CountdownWatcher();
        CountdownWatcher watcher3 = new CountdownWatcher();

        int index = 1;
        while(qu.getPeer(index).peer.leader == null) {
            index++;
        }
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    }

    private static TestableZooKeeper createTestableClient(String hp)
        throws IOException, TimeoutException, InterruptedException
    {
        CountdownWatcher watcher = new CountdownWatcher();
        return createTestableClient(watcher, hp);
    }
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     * See ZOOKEEPER-790 for details
     * */
    @Test
    public void testFollowersStartAfterLeader() throws Exception {
        QuorumUtil qu = new QuorumUtil(1);
        CountdownWatcher watcher = new CountdownWatcher();
        qu.startQuorum();
       
        int index = 1;
        while(qu.getPeer(index).peer.leader == null) {
            index++;
        }
       
        ZooKeeper zk = new ZooKeeper(
                "127.0.0.1:" + qu.getPeer((index == 1)?2:1).peer.getClientPort(),
                ClientBase.CONNECTION_TIMEOUT, watcher);
        watcher.waitForConnected(CONNECTION_TIMEOUT);
       
        // break the quorum
        qu.shutdown(index);

        // Wait until we disconnect to proceed
        watcher.waitForDisconnected(CONNECTION_TIMEOUT);
       
        // try to reestablish the quorum
        qu.start(index);

        try{
            watcher.waitForConnected(30000);     
        } catch(TimeoutException e) {
            Assert.fail("client could not connect to reestablished quorum: giving up after 30+ seconds.");
        }

        zk.close();
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     * Without the fix in ZOOKEEPER-1124, this fails with a ConnectionLoss KeeperException.
     */
    @Test
    public void testMultiToFollower() throws Exception {
        QuorumUtil qu = new QuorumUtil(1);
        CountdownWatcher watcher = new CountdownWatcher();
        qu.startQuorum();
       
        int index = 1;
        while(qu.getPeer(index).peer.leader == null) {
            index++;
        }
       
        ZooKeeper zk = new ZooKeeper(
                "127.0.0.1:" + qu.getPeer((index == 1)?2:1).peer.getClientPort(),
                ClientBase.CONNECTION_TIMEOUT, watcher);
        watcher.waitForConnected(CONNECTION_TIMEOUT);
       
        List<OpResult> results = new ArrayList<OpResult>();

        results = zk.multi(Arrays.asList(
                Op.create("/multi0", new byte[0], Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT),
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    /**
     * Test write operations using multi request.
     */
    @Test(timeout = 90000)
    public void testMultiTransaction() throws Exception {
        CountdownWatcher watcher = new CountdownWatcher();
        ZooKeeper zk = new ZooKeeper(qu.getConnString(), CONNECTION_TIMEOUT,
                watcher, true);
        watcher.waitForConnected(CONNECTION_TIMEOUT); // ensure zk got connected

        final String data = "Data to be read in RO mode";
        final String node1 = "/tnode1";
        final String node2 = "/tnode2";
        zk.create(node1, data.getBytes(), ZooDefs.Ids.OPEN_ACL_UNSAFE,
                CreateMode.PERSISTENT);

        watcher.reset();
        qu.shutdown(2);
        watcher.waitForConnected(CONNECTION_TIMEOUT);
        Assert.assertEquals("Should be in r-o mode", States.CONNECTEDREADONLY,
                zk.getState());

        // read operation during r/o mode
        String remoteData = new String(zk.getData(node1, false, null));
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Related Classes of org.apache.zookeeper.test.ClientBase.CountdownWatcher

  • org.apache.zookeeper.server.ZxidRolloverTest
  • org.apache.zookeeper.test.AsyncHammerTest$HammerThread
  • org.apache.zookeeper.test.DuplicateLocalSessionUpgradeTest
  • org.apache.zookeeper.test.FollowerResyncConcurrencyTest
  • org.apache.zookeeper.test.FollowerTest
  • org.apache.zookeeper.test.LocalSessionRequestTest
  • org.apache.zookeeper.test.LocalSessionsOnlyTest
  • org.apache.zookeeper.test.QuorumTest
  • org.apache.zookeeper.test.ReadOnlyModeTest
  • org.apache.zookeeper.test.SessionUpgradeTest
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