Package net.kuujo.copycat.test

Examples of net.kuujo.copycat.test.TestNode

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   * Tests that a follower takes a snapshot of its state machine and compacts its log.
   */
  public void testFollowerTakesSnapshotAndCompactsLog() {
    Protocol<Member> protocol = new LocalProtocol();
    TestCluster cluster = new TestCluster();
    TestNode node1 = new TestNode()
      .withCluster("foo", "bar", "baz")
      .withProtocol(protocol)
      .withConfig(new CopycatConfig().withMaxLogSize(512))
      .withTerm(3)
      .withLeader("baz")
      .withStateMachine(new TestStateMachine())
      .withLog(new TestLog()
        .withEntry(new ConfigurationEntry(1, new ClusterConfig()
          .withLocalMember(new Member("foo"))
          .withRemoteMembers(new Member("bar"), new Member("baz"))))
        .withEntry(new OperationEntry(1, "foo", Arrays.asList("bar", "baz")))
        .withEntry(new OperationEntry(1, "foo", Arrays.asList("bar", "baz")))
        .withEntry(new OperationEntry(1, "foo", Arrays.asList("bar", "baz")))
        .withEntry(new OperationEntry(2, "foo", Arrays.asList("bar", "baz")))
        .withEntry(new OperationEntry(2, "foo", Arrays.asList("bar", "baz"))))
      .withState(CopycatState.FOLLOWER)
      .withCommitIndex(6)
      .withLastApplied(6);
    cluster.addNode(node1);

    TestNode node2 = new TestNode()
      .withCluster("bar", "foo", "baz")
      .withProtocol(protocol)
      .withConfig(new CopycatConfig().withMaxLogSize(512))
      .withTerm(3)
      .withLeader("baz")
      .withStateMachine(new TestStateMachine())
      .withLog(new TestLog()
        .withEntry(new ConfigurationEntry(1, new ClusterConfig()
          .withLocalMember(new Member("bar"))
          .withRemoteMembers(new Member("foo"), new Member("baz"))))
        .withEntry(new OperationEntry(1, "foo", Arrays.asList("bar", "baz")))
        .withEntry(new OperationEntry(1, "foo", Arrays.asList("bar", "baz")))
        .withEntry(new OperationEntry(1, "foo", Arrays.asList("bar", "baz")))
        .withEntry(new OperationEntry(2, "foo", Arrays.asList("bar", "baz")))
        .withEntry(new OperationEntry(2, "foo", Arrays.asList("bar", "baz"))))
      .withState(CopycatState.FOLLOWER)
      .withCommitIndex(6)
      .withLastApplied(6);
    cluster.addNode(node2);

    TestNode node3 = new TestNode()
      .withCluster("baz", "bar", "foo")
      .withProtocol(protocol)
      .withConfig(new CopycatConfig().withMaxLogSize(512))
      .withTerm(3)
      .withLeader("baz")
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      .withRemoteMembers(new Member("bar"), new Member("baz")),
      "Hello world!".getBytes());
    log1.compact(800, snapshot1);

    TestCluster cluster = new TestCluster();
    TestNode node1 = new TestNode()
      .withCluster("foo", "bar", "baz")
      .withProtocol(protocol)
      .withTerm(1)
      .withLeader("baz")
      .withStateMachine(new TestStateMachine())
      .withLog(log1)
      .withState(CopycatState.FOLLOWER)
      .withCommitIndex(999)
      .withLastApplied(999);
    cluster.addNode(node1);

    TestNode node2 = new TestNode()
      .withCluster("bar", "foo", "baz")
      .withProtocol(protocol)
      .withTerm(1)
      .withLeader("baz")
      .withStateMachine(new TestStateMachine())
      .withLog(new TestLog()
        .withEntry(new ConfigurationEntry(1, new ClusterConfig()
          .withLocalMember(new Member("bar"))
          .withRemoteMembers(new Member("foo"), new Member("baz"))))
        .withEntry(new OperationEntry(1, "foo", Arrays.asList("bar", "baz")))
        .withEntry(new OperationEntry(1, "foo", Arrays.asList("bar", "baz")))
        .withEntry(new OperationEntry(1, "foo", Arrays.asList("bar", "baz")))
        .withEntry(new OperationEntry(1, "foo", Arrays.asList("bar", "baz")))
        .withEntry(new OperationEntry(1, "foo", Arrays.asList("bar", "baz"))))
      .withState(CopycatState.FOLLOWER)
      .withCommitIndex(0)
      .withLastApplied(0);
    cluster.addNode(node2);

    TestLog log3 = new TestLog();
    log1.appendEntry(new ConfigurationEntry(1, new ClusterConfig()
      .withLocalMember(new Member("baz"))
      .withRemoteMembers(new Member("bar"), new Member("foo"))));
    for (long i = 0; i < 1000; i++) {
      log3.appendEntry(new OperationEntry(1, "foo", Arrays.asList("bar", "baz")));
    }
    SnapshotEntry snapshot3 = new SnapshotEntry(1, new ClusterConfig()
      .withLocalMember(new Member("baz"))
      .withRemoteMembers(new Member("bar"), new Member("foo")),
      "Hello world!".getBytes());
    log3.compact(800, snapshot3);

    TestNode node3 = new TestNode()
      .withCluster("baz", "bar", "foo")
      .withProtocol(protocol)
      .withTerm(1)
      .withLeader("baz")
      .withStateMachine(new TestStateMachine())
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Related Classes of net.kuujo.copycat.test.TestNode

  • net.kuujo.copycat.cluster.Member
  • net.kuujo.copycat.functional.ConfigurationTest
  • net.kuujo.copycat.functional.LeaderElectionTest
  • net.kuujo.copycat.functional.SnapshotTest
  • java.util.concurrent.CountDownLatch
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