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

Example 11 with Node

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

the class NodeTest method testReadIndex.

@Test
public void testReadIndex() 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);
    // first call will fail-fast when no connection
    if (!assertReadIndex(leader, 11)) {
        assertTrue(assertReadIndex(leader, 11));
    }
    // read from follower
    for (final Node follower : cluster.getFollowers()) {
        assertNotNull(follower);
        assertReadIndex(follower, 11);
    }
    // read with null request context
    final CountDownLatch latch = new CountDownLatch(1);
    leader.readIndex(null, new ReadIndexClosure() {

        @Override
        public void run(final Status status, final long index, final byte[] reqCtx) {
            assertNull(reqCtx);
            assertTrue(status.isOk());
            latch.countDown();
        }
    });
    latch.await();
    cluster.stopAll();
}

Example 12 with Node

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

the class NodeTest method testRecoverFollower.

@Test
public void testRecoverFollower() throws Exception {
    final List<PeerId> peers = TestUtils.generatePeers(3);
    final TestCluster cluster = new TestCluster("unitest", this.dataPath, peers);
    for (final PeerId peer : peers) {
        assertTrue(cluster.start(peer.getEndpoint()));
    }
    cluster.waitLeader();
    final Node leader = cluster.getLeader();
    assertNotNull(leader);
    Thread.sleep(100);
    final List<Node> followers = cluster.getFollowers();
    assertEquals(2, followers.size());
    final Endpoint followerAddr = followers.get(0).getNodeId().getPeerId().getEndpoint().copy();
    assertTrue(cluster.stop(followerAddr));
    this.sendTestTaskAndWait(leader);
    for (int i = 10; i < 30; i++) {
        final ByteBuffer data = ByteBuffer.wrap(("no clusre" + i).getBytes());
        final Task task = new Task(data, null);
        leader.apply(task);
    }
    // wait leader to compact logs
    Thread.sleep(5000);
    // restart follower
    assertTrue(cluster.start(followerAddr));
    assertTrue(cluster.ensureSame(30));
    assertEquals(3, cluster.getFsms().size());
    for (final MockStateMachine fsm : cluster.getFsms()) {
        assertEquals(30, fsm.getLogs().size());
    }
    cluster.stopAll();
}

Example 13 with Node

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

the class NodeTest method testLeaderTransferBeforeLogIsCompleted.

@Test
public void testLeaderTransferBeforeLogIsCompleted() throws Exception {
    final List<PeerId> peers = TestUtils.generatePeers(3);
    final TestCluster cluster = new TestCluster("unitest", this.dataPath, peers, 300);
    for (final PeerId peer : peers) {
        assertTrue(cluster.start(peer.getEndpoint(), false, 1));
    }
    cluster.waitLeader();
    Node leader = cluster.getLeader();
    assertNotNull(leader);
    Thread.sleep(100);
    final List<Node> followers = cluster.getFollowers();
    assertEquals(2, followers.size());
    final PeerId targetPeer = followers.get(0).getNodeId().getPeerId().copy();
    assertTrue(cluster.stop(targetPeer.getEndpoint()));
    this.sendTestTaskAndWait(leader);
    LOG.info("Transfer leadership from {} to {}", leader, targetPeer);
    assertTrue(leader.transferLeadershipTo(targetPeer).isOk());
    final CountDownLatch latch = new CountDownLatch(1);
    final Task task = new Task(ByteBuffer.wrap("aaaaa".getBytes()), new ExpectClosure(RaftError.EBUSY, latch));
    leader.apply(task);
    waitLatch(latch);
    assertTrue(cluster.start(targetPeer.getEndpoint()));
    Thread.sleep(5000);
    cluster.waitLeader();
    leader = cluster.getLeader();
    Assert.assertEquals(targetPeer, leader.getNodeId().getPeerId());
    assertTrue(cluster.ensureSame(5));
    cluster.stopAll();
}

Example 14 with Node

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

the class NodeTest method testInstallLargeSnapshotWithThrottle.

@Test
public void testInstallLargeSnapshotWithThrottle() throws Exception {
    final List<PeerId> peers = TestUtils.generatePeers(4);
    final TestCluster cluster = new TestCluster("unitest", this.dataPath, peers.subList(0, 3));
    for (int i = 0; i < peers.size() - 1; i++) {
        final PeerId peer = peers.get(i);
        final boolean started = cluster.start(peer.getEndpoint(), false, 200, false);
        assertTrue(started);
    }
    cluster.waitLeader();
    // get leader
    final Node leader = cluster.getLeader();
    assertNotNull(leader);
    // apply tasks to leader
    sendTestTaskAndWait(leader, 0, RaftError.SUCCESS);
    cluster.ensureSame();
    // apply something more
    for (int i = 1; i < 100; i++) {
        sendTestTaskAndWait(leader, i * 10, RaftError.SUCCESS);
    }
    Thread.sleep(1000);
    // trigger leader snapshot
    triggerLeaderSnapshot(cluster, leader);
    // apply something more
    for (int i = 100; i < 200; i++) {
        sendTestTaskAndWait(leader, i * 10, RaftError.SUCCESS);
    }
    // trigger leader snapshot
    triggerLeaderSnapshot(cluster, leader, 2);
    // wait leader to compact logs
    Thread.sleep(1000);
    // add follower
    final PeerId newPeer = peers.get(3);
    final SnapshotThrottle snapshotThrottle = new ThroughputSnapshotThrottle(128, 1);
    final boolean started = cluster.start(newPeer.getEndpoint(), true, 300, false, snapshotThrottle);
    assertTrue(started);
    final CountDownLatch latch = new CountDownLatch(1);
    leader.addPeer(newPeer, status -> {
        assertTrue(status.toString(), status.isOk());
        latch.countDown();
    });
    waitLatch(latch);
    cluster.ensureSame();
    assertEquals(4, cluster.getFsms().size());
    for (final MockStateMachine fsm : cluster.getFsms()) {
        assertEquals(2000, fsm.getLogs().size());
    }
    cluster.stopAll();
}

Example 15 with Node

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

the class NodeTest method testNodeTaskOverload.

@Test
public void testNodeTaskOverload() 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 RaftOptions raftOptions = new RaftOptions();
    raftOptions.setDisruptorBufferSize(2);
    nodeOptions.setRaftOptions(raftOptions);
    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()) {
        ;
    }
    final List<Task> tasks = new ArrayList<>();
    final AtomicInteger c = new AtomicInteger(0);
    for (int i = 0; i < 10; i++) {
        final ByteBuffer data = ByteBuffer.wrap(("hello" + i).getBytes());
        final Task task = new Task(data, new JoinableClosure(status -> {
            System.out.println(status);
            if (!status.isOk()) {
                assertTrue(status.getRaftError() == RaftError.EBUSY || status.getRaftError() == RaftError.EPERM);
            }
            c.incrementAndGet();
        }));
        node.apply(task);
        tasks.add(task);
    }
    try {
        Task.joinAll(tasks, TimeUnit.SECONDS.toMillis(30));
        assertEquals(10, c.get());
    } finally {
        node.shutdown();
        node.join();
    }
}