Examples with Node com.alipay.sofa.jraft.Node used on opensource projects

Example 16 with Node

use of com.alipay.sofa.jraft.Node in project sofa-jraft by sofastack.

the class NodeTest method testReadIndexFromLearner.

@Test
public void testReadIndexFromLearner() throws Exception {
    final List<PeerId> peers = TestUtils.generatePeers(3);
    final TestCluster cluster = new TestCluster("unittest", this.dataPath, peers);
    for (final PeerId peer : peers) {
        assertTrue(cluster.start(peer.getEndpoint(), false, 300, true));
    }
    // elect leader
    cluster.waitLeader();
    // get leader
    final Node leader = cluster.getLeader();
    assertNotNull(leader);
    assertEquals(3, leader.listPeers().size());
    // apply tasks to leader
    this.sendTestTaskAndWait(leader);
    {
        // Adds a learner
        SynchronizedClosure done = new SynchronizedClosure();
        PeerId learnerPeer = new PeerId(TestUtils.getMyIp(), TestUtils.INIT_PORT + 3);
        // Start learner
        assertTrue(cluster.startLearner(learnerPeer));
        leader.addLearners(Arrays.asList(learnerPeer), done);
        assertTrue(done.await().isOk());
        assertEquals(1, leader.listAliveLearners().size());
        assertEquals(1, leader.listLearners().size());
    }
    Thread.sleep(100);
    // read from learner
    Node learner = cluster.getNodes().get(3);
    assertNotNull(leader);
    assertReadIndex(learner, 12);
    assertReadIndex(learner, 12);
    cluster.stopAll();
}

Example 17 with Node

use of com.alipay.sofa.jraft.Node in project sofa-jraft by sofastack.

the class NodeTest method testReadIndexChaos.

@Test
public void testReadIndexChaos() throws Exception {
    final List<PeerId> peers = TestUtils.generatePeers(3);
    final TestCluster cluster = new TestCluster("unittest", this.dataPath, peers);
    for (final PeerId peer : peers) {
        assertTrue(cluster.start(peer.getEndpoint(), false, 300, true));
    }
    // elect leader
    cluster.waitLeader();
    // get leader
    final Node leader = cluster.getLeader();
    assertNotNull(leader);
    assertEquals(3, leader.listPeers().size());
    final CountDownLatch latch = new CountDownLatch(10);
    for (int i = 0; i < 10; i++) {
        new Thread() {

            @Override
            public void run() {
                try {
                    for (int i = 0; i < 100; i++) {
                        try {
                            sendTestTaskAndWait(leader);
                        } catch (final InterruptedException e) {
                            Thread.currentThread().interrupt();
                        }
                        readIndexRandom(cluster);
                    }
                } finally {
                    latch.countDown();
                }
            }

            private void readIndexRandom(final TestCluster cluster) {
                final CountDownLatch readLatch = new CountDownLatch(1);
                final byte[] requestContext = TestUtils.getRandomBytes();
                cluster.getNodes().get(ThreadLocalRandom.current().nextInt(3)).readIndex(requestContext, new ReadIndexClosure() {

                    @Override
                    public void run(final Status status, final long index, final byte[] reqCtx) {
                        if (status.isOk()) {
                            assertTrue(status.toString(), status.isOk());
                            assertTrue(index > 0);
                            assertArrayEquals(requestContext, reqCtx);
                        }
                        readLatch.countDown();
                    }
                });
                try {
                    readLatch.await();
                } catch (final InterruptedException e) {
                    Thread.currentThread().interrupt();
                }
            }
        }.start();
    }
    latch.await();
    cluster.ensureSame();
    for (final MockStateMachine fsm : cluster.getFsms()) {
        assertEquals(10000, fsm.getLogs().size());
    }
    cluster.stopAll();
}

Example 18 with Node

use of com.alipay.sofa.jraft.Node in project sofa-jraft by sofastack.

the class NodeTest method testSingleNode.

@Test
public void testSingleNode() throws Exception {
    final Endpoint addr = new Endpoint(TestUtils.getMyIp(), TestUtils.INIT_PORT);
    final PeerId peer = new PeerId(addr, 0);
    NodeManager.getInstance().addAddress(addr);
    final NodeOptions nodeOptions = createNodeOptionsWithSharedTimer();
    final MockStateMachine fsm = new MockStateMachine(addr);
    nodeOptions.setFsm(fsm);
    nodeOptions.setLogUri(this.dataPath + File.separator + "log");
    nodeOptions.setRaftMetaUri(this.dataPath + File.separator + "meta");
    nodeOptions.setSnapshotUri(this.dataPath + File.separator + "snapshot");
    nodeOptions.setInitialConf(new Configuration(Collections.singletonList(peer)));
    final Node node = new NodeImpl("unittest", peer);
    assertTrue(node.init(nodeOptions));
    assertEquals(1, node.listPeers().size());
    assertTrue(node.listPeers().contains(peer));
    while (!node.isLeader()) {
        ;
    }
    sendTestTaskAndWait(node);
    assertEquals(10, fsm.getLogs().size());
    int i = 0;
    for (final ByteBuffer data : fsm.getLogs()) {
        assertEquals("hello" + i++, new String(data.array()));
    }
    node.shutdown();
    node.join();
}

Example 19 with Node

use of com.alipay.sofa.jraft.Node in project sofa-jraft by sofastack.

the class NodeTest method testJoinNodes.

@Test
public void testJoinNodes() throws Exception {
    final PeerId peer0 = new PeerId(TestUtils.getMyIp(), TestUtils.INIT_PORT);
    final PeerId peer1 = new PeerId(TestUtils.getMyIp(), TestUtils.INIT_PORT + 1);
    final PeerId peer2 = new PeerId(TestUtils.getMyIp(), TestUtils.INIT_PORT + 2);
    final PeerId peer3 = new PeerId(TestUtils.getMyIp(), TestUtils.INIT_PORT + 3);
    final ArrayList<PeerId> peers = new ArrayList<>();
    peers.add(peer0);
    // start single cluster
    final TestCluster cluster = new TestCluster("unittest", this.dataPath, peers);
    assertTrue(cluster.start(peer0.getEndpoint()));
    cluster.waitLeader();
    final Node leader = cluster.getLeader();
    assertNotNull(leader);
    Assert.assertEquals(leader.getNodeId().getPeerId(), peer0);
    this.sendTestTaskAndWait(leader);
    // start peer1
    assertTrue(cluster.start(peer1.getEndpoint(), true, 300));
    // add peer1
    CountDownLatch latch = new CountDownLatch(1);
    peers.add(peer1);
    leader.addPeer(peer1, new ExpectClosure(latch));
    waitLatch(latch);
    cluster.ensureSame(-1);
    assertEquals(2, cluster.getFsms().size());
    for (final MockStateMachine fsm : cluster.getFsms()) {
        assertEquals(10, fsm.getLogs().size());
    }
    // add peer2 but not start
    peers.add(peer2);
    latch = new CountDownLatch(1);
    leader.addPeer(peer2, new ExpectClosure(RaftError.ECATCHUP, latch));
    waitLatch(latch);
    // start peer2 after 2 seconds
    Thread.sleep(2000);
    assertTrue(cluster.start(peer2.getEndpoint(), true, 300));
    Thread.sleep(10000);
    // re-add peer2
    latch = new CountDownLatch(2);
    leader.addPeer(peer2, new ExpectClosure(latch));
    // concurrent configuration change
    leader.addPeer(peer3, new ExpectClosure(RaftError.EBUSY, latch));
    waitLatch(latch);
    try {
        leader.addPeer(peer2, new ExpectClosure(latch));
        fail();
    } catch (final IllegalArgumentException e) {
        assertEquals("Peer already exists in current configuration", e.getMessage());
    }
    cluster.ensureSame();
    assertEquals(3, cluster.getFsms().size());
    assertEquals(2, cluster.getFollowers().size());
    for (final MockStateMachine fsm : cluster.getFsms()) {
        assertEquals(10, fsm.getLogs().size());
    }
    cluster.stopAll();
}

Example 20 with Node

use of com.alipay.sofa.jraft.Node in project sofa-jraft by sofastack.

the class NodeTest method testChangePeersChaosWithSnapshot.

@Test
public void testChangePeersChaosWithSnapshot() throws Exception {
    // start cluster
    final List<PeerId> peers = new ArrayList<>();
    peers.add(new PeerId("127.0.0.1", TestUtils.INIT_PORT));
    final TestCluster cluster = new TestCluster("unittest", this.dataPath, peers, 1000);
    assertTrue(cluster.start(peers.get(0).getEndpoint(), false, 2));
    // start other peers
    for (int i = 1; i < 10; i++) {
        final PeerId peer = new PeerId("127.0.0.1", TestUtils.INIT_PORT + i);
        peers.add(peer);
        assertTrue(cluster.start(peer.getEndpoint()));
    }
    final ChangeArg arg = new ChangeArg(cluster, peers, false, false);
    final Future<?> future = startChangePeersThread(arg);
    for (int i = 0; i < 5000; ) {
        cluster.waitLeader();
        final Node leader = cluster.getLeader();
        if (leader == null) {
            continue;
        }
        final SynchronizedClosure done = new SynchronizedClosure();
        final Task task = new Task(ByteBuffer.wrap(("hello" + i).getBytes()), done);
        leader.apply(task);
        final Status status = done.await();
        if (status.isOk()) {
            if (++i % 100 == 0) {
                System.out.println("Progress:" + i);
            }
        } else {
            assertEquals(RaftError.EPERM, status.getRaftError());
        }
    }
    arg.stop = true;
    future.get();
    cluster.waitLeader();
    final SynchronizedClosure done = new SynchronizedClosure();
    final Node leader = cluster.getLeader();
    leader.changePeers(new Configuration(peers), done);
    final Status st = done.await();
    assertTrue(st.getErrorMsg(), st.isOk());
    cluster.ensureSame();
    assertEquals(10, cluster.getFsms().size());
    for (final MockStateMachine fsm : cluster.getFsms()) {
        assertTrue(fsm.getLogs().size() >= 5000);
    }
    cluster.stopAll();
}