Examples with QuorumServer org.apache.zookeeper.server.quorum.QuorumPeer.QuorumServer used on opensource projects

Example 6 with QuorumServer

use of org.apache.zookeeper.server.quorum.QuorumPeer.QuorumServer in project zookeeper by apache.

the class BaseSysTest method fakeConfigureServers.

private void fakeConfigureServers(int count) throws IOException {
    peers = new HashMap<Long, QuorumServer>();
    qps = new QuorumPeer[count];
    qpsDirs = new File[count];
    for (int i = 1; i <= count; i++) {
        InetSocketAddress peerAddress = new InetSocketAddress("127.0.0.1", fakeBasePort + i);
        InetSocketAddress electionAddr = new InetSocketAddress("127.0.0.1", serverCount + fakeBasePort + i);
        peers.put(Long.valueOf(i), new QuorumServer(i, peerAddress, electionAddr));
    }
    StringBuilder sb = new StringBuilder();
    for (int i = 0; i < count; i++) {
        //make that testData exists otherwise it fails on windows
        testData.mkdirs();
        qpsDirs[i] = File.createTempFile("sysTest", ".tmp", testData);
        qpsDirs[i].delete();
        qpsDirs[i].mkdir();
        int port = fakeBasePort + 10 + i;
        if (sb.length() > 0) {
            sb.append(',');
        }
        sb.append("localhost:");
        sb.append(port);
    }
    serverHostPort = sb.toString();
}

Example 7 with QuorumServer

use of org.apache.zookeeper.server.quorum.QuorumPeer.QuorumServer in project zookeeper by apache.

the class FLEBackwardElectionRoundTest method testBackwardElectionRound.

/**
     * This test is checking the following case. A server S is
     * currently LOOKING and it receives notifications from
     * a quorum indicating they are following S. The election
     * round E of S is higher than the election round E' in the
     * notification messages, so S becomes the leader and sets
     * its epoch back to E'. In the meanwhile, one or more
     * followers turn to LOOKING and elect S in election round E.
     * Having leader and followers with different election rounds
     * might prevent other servers from electing a leader because
     * they can't get a consistent set of notifications from a
     * quorum.
     *
     * {@link https://issues.apache.org/jira/browse/ZOOKEEPER-1514}
     *
     *
     * @throws Exception
     */
@Test
public void testBackwardElectionRound() throws Exception {
    LOG.info("TestLE: {}, {}", getTestName(), count);
    for (int i = 0; i < count; i++) {
        int clientport = PortAssignment.unique();
        peers.put(Long.valueOf(i), new QuorumServer(i, new InetSocketAddress(clientport), new InetSocketAddress(PortAssignment.unique())));
        tmpdir[i] = ClientBase.createTmpDir();
        port[i] = clientport;
    }
    ByteBuffer initialMsg = FLETestUtils.createMsg(ServerState.FOLLOWING.ordinal(), 0, 0, 1);
    /*
         * Start server 0
         */
    QuorumPeer peer = new QuorumPeer(peers, tmpdir[0], tmpdir[0], port[0], 3, 0, 1000, 2, 2);
    peer.startLeaderElection();
    FLETestUtils.LEThread thread = new FLETestUtils.LEThread(peer, 0);
    thread.start();
    /*
         * Start mock server 1
         */
    QuorumPeer mockPeer = new QuorumPeer(peers, tmpdir[1], tmpdir[1], port[1], 3, 1, 1000, 2, 2);
    cnxManagers[0] = new QuorumCnxManager(mockPeer);
    cnxManagers[0].listener.start();
    cnxManagers[0].toSend(0l, initialMsg);
    /*
         * Start mock server 2
         */
    mockPeer = new QuorumPeer(peers, tmpdir[2], tmpdir[2], port[2], 3, 2, 1000, 2, 2);
    cnxManagers[1] = new QuorumCnxManager(mockPeer);
    cnxManagers[1].listener.start();
    cnxManagers[1].toSend(0l, initialMsg);
    /*
         * Run another instance of leader election.
         */
    thread.join(5000);
    thread = new FLETestUtils.LEThread(peer, 0);
    thread.start();
    /*
         * Send the same messages, this time should not make 0 the leader.
         */
    cnxManagers[0].toSend(0l, initialMsg);
    cnxManagers[1].toSend(0l, initialMsg);
    thread.join(5000);
    if (!thread.isAlive()) {
        Assert.fail("Should not have joined");
    }
}

Example 8 with QuorumServer

use of org.apache.zookeeper.server.quorum.QuorumPeer.QuorumServer in project zookeeper by apache.

the class FLELostMessageTest method testLostMessage.

@Test
public void testLostMessage() throws Exception {
    LOG.info("TestLE: {}, {}", getTestName(), count);
    for (int i = 0; i < count; i++) {
        int clientport = PortAssignment.unique();
        peers.put(Long.valueOf(i), new QuorumServer(i, new InetSocketAddress(clientport), new InetSocketAddress(PortAssignment.unique())));
        tmpdir[i] = ClientBase.createTmpDir();
        port[i] = clientport;
    }
    /*
         * Start server 0
         */
    QuorumPeer peer = new QuorumPeer(peers, tmpdir[1], tmpdir[1], port[1], 3, 1, 1000, 2, 2);
    peer.startLeaderElection();
    FLETestUtils.LEThread thread = new FLETestUtils.LEThread(peer, 1);
    thread.start();
    /*
         * Start mock server 1
         */
    mockServer();
    thread.join(5000);
    if (thread.isAlive()) {
        Assert.fail("Threads didn't join");
    }
}

Example 9 with QuorumServer

use of org.apache.zookeeper.server.quorum.QuorumPeer.QuorumServer in project zookeeper by apache.

the class QuorumPeerTest method testQuorumPeerListendOnSpecifiedClientIP.

/**
     * Test case for https://issues.apache.org/jira/browse/ZOOKEEPER-2301
     */
@Test
public void testQuorumPeerListendOnSpecifiedClientIP() throws IOException {
    long myId = 1;
    File dataDir = ClientBase.createTmpDir();
    int clientPort = PortAssignment.unique();
    Map<Long, QuorumServer> peersView = new HashMap<Long, QuorumServer>();
    InetAddress clientIP = InetAddress.getLoopbackAddress();
    peersView.put(Long.valueOf(myId), new QuorumServer(myId, new InetSocketAddress(clientIP, PortAssignment.unique()), new InetSocketAddress(clientIP, PortAssignment.unique()), new InetSocketAddress(clientIP, clientPort), LearnerType.PARTICIPANT));
    /**
         * QuorumPeer constructor without QuorumVerifier
         */
    QuorumPeer peer1 = new QuorumPeer(peersView, dataDir, dataDir, clientPort, electionAlg, myId, tickTime, initLimit, syncLimit);
    String hostString1 = peer1.cnxnFactory.getLocalAddress().getHostString();
    assertEquals(clientIP.getHostAddress(), hostString1);
    // cleanup
    peer1.shutdown();
    /**
         * QuorumPeer constructor with QuorumVerifier
         */
    peersView.clear();
    clientPort = PortAssignment.unique();
    peersView.put(Long.valueOf(myId), new QuorumServer(myId, new InetSocketAddress(clientIP, PortAssignment.unique()), new InetSocketAddress(clientIP, PortAssignment.unique()), new InetSocketAddress(clientIP, clientPort), LearnerType.PARTICIPANT));
    QuorumPeer peer2 = new QuorumPeer(peersView, dataDir, dataDir, clientPort, electionAlg, myId, tickTime, initLimit, syncLimit);
    String hostString2 = peer2.cnxnFactory.getLocalAddress().getHostString();
    assertEquals(clientIP.getHostAddress(), hostString2);
    // cleanup
    peer2.shutdown();
}

Example 10 with QuorumServer

use of org.apache.zookeeper.server.quorum.QuorumPeer.QuorumServer in project zookeeper by apache.

the class QuorumServerTest method testToString.

@Test
public void testToString() throws ConfigException {
    String config = "127.0.0.1:1234:1236:participant;0.0.0.0:1237";
    String expected = "127.0.0.1:1234:1236:participant;0.0.0.0:1237";
    QuorumServer qs = new QuorumServer(0, config);
    Assert.assertEquals("Use IP address", expected, qs.toString());
    config = "127.0.0.1:1234:1236;0.0.0.0:1237";
    expected = "127.0.0.1:1234:1236:participant;0.0.0.0:1237";
    qs = new QuorumServer(0, config);
    Assert.assertEquals("Type unspecified", expected, qs.toString());
    config = "127.0.0.1:1234:1236:observer;0.0.0.0:1237";
    expected = "127.0.0.1:1234:1236:observer;0.0.0.0:1237";
    qs = new QuorumServer(0, config);
    Assert.assertEquals("Observer type", expected, qs.toString());
    config = "127.0.0.1:1234:1236:participant;1237";
    expected = "127.0.0.1:1234:1236:participant;0.0.0.0:1237";
    qs = new QuorumServer(0, config);
    Assert.assertEquals("Client address unspecified", expected, qs.toString());
    config = "127.0.0.1:1234:1236:participant;1.2.3.4:1237";
    expected = "127.0.0.1:1234:1236:participant;1.2.3.4:1237";
    qs = new QuorumServer(0, config);
    Assert.assertEquals("Client address specified", expected, qs.toString());
    config = "example.com:1234:1236:participant;1237";
    expected = "example.com:1234:1236:participant;0.0.0.0:1237";
    qs = new QuorumServer(0, config);
    Assert.assertEquals("Use hostname", expected, qs.toString());
}