Examples with MockScheduler org.apache.kafka.common.utils.MockScheduler used on opensource projects

Example 26 with MockScheduler

use of org.apache.kafka.common.utils.MockScheduler in project kafka by apache.

the class AgentTest method testWorkerCompletions.

@Test
public void testWorkerCompletions() throws Exception {
    MockTime time = new MockTime(0, 0, 0);
    MockScheduler scheduler = new MockScheduler(time);
    Agent agent = createAgent(scheduler);
    AgentClient client = new AgentClient.Builder().maxTries(10).target("localhost", agent.port()).build();
    new ExpectedTasks().waitFor(client);
    SampleTaskSpec fooSpec = new SampleTaskSpec(0, 900000, Collections.singletonMap("node01", 1L), "");
    client.createWorker(new CreateWorkerRequest(0, "foo", fooSpec));
    new ExpectedTasks().addTask(new ExpectedTaskBuilder("foo").workerState(new WorkerRunning("foo", fooSpec, 0, new TextNode("active"))).build()).waitFor(client);
    SampleTaskSpec barSpec = new SampleTaskSpec(0, 900000, Collections.singletonMap("node01", 2L), "baz");
    client.createWorker(new CreateWorkerRequest(1, "bar", barSpec));
    time.sleep(1);
    new ExpectedTasks().addTask(new ExpectedTaskBuilder("foo").workerState(new WorkerDone("foo", fooSpec, 0, 1, new TextNode("halted"), "")).build()).addTask(new ExpectedTaskBuilder("bar").workerState(new WorkerRunning("bar", barSpec, 0, new TextNode("active"))).build()).waitFor(client);
    time.sleep(1);
    new ExpectedTasks().addTask(new ExpectedTaskBuilder("foo").workerState(new WorkerDone("foo", fooSpec, 0, 1, new TextNode("halted"), "")).build()).addTask(new ExpectedTaskBuilder("bar").workerState(new WorkerDone("bar", barSpec, 0, 2, new TextNode("halted"), "baz")).build()).waitFor(client);
}

Example 27 with MockScheduler

use of org.apache.kafka.common.utils.MockScheduler in project kafka by apache.

the class AgentTest method testCreateExpiredWorkerIsNotScheduled.

@Test
public void testCreateExpiredWorkerIsNotScheduled() throws Exception {
    long initialTimeMs = 100;
    long tickMs = 15;
    final boolean[] toSleep = { true };
    MockTime time = new MockTime(tickMs, initialTimeMs, 0) {

        /**
         * Modify sleep() to call super.sleep() every second call
         * in order to avoid the endless loop in the tick() calls to the MockScheduler listener
         */
        @Override
        public void sleep(long ms) {
            toSleep[0] = !toSleep[0];
            if (toSleep[0])
                super.sleep(ms);
        }
    };
    MockScheduler scheduler = new MockScheduler(time);
    Agent agent = createAgent(scheduler);
    AgentClient client = new AgentClient.Builder().maxTries(10).target("localhost", agent.port()).build();
    AgentStatusResponse status = client.status();
    assertEquals(Collections.emptyMap(), status.workers());
    new ExpectedTasks().waitFor(client);
    final NoOpTaskSpec fooSpec = new NoOpTaskSpec(10, 10);
    client.createWorker(new CreateWorkerRequest(0, "foo", fooSpec));
    long actualStartTimeMs = initialTimeMs + tickMs;
    long doneMs = actualStartTimeMs + 2 * tickMs;
    new ExpectedTasks().addTask(new ExpectedTaskBuilder("foo").workerState(new WorkerDone("foo", fooSpec, actualStartTimeMs, doneMs, null, "worker expired")).taskState(new TaskDone(fooSpec, actualStartTimeMs, doneMs, "worker expired", false, null)).build()).waitFor(client);
}

Example 28 with MockScheduler

use of org.apache.kafka.common.utils.MockScheduler in project kafka by apache.

the class AgentTest method testDestroyWorkers.

@Test
public void testDestroyWorkers() throws Exception {
    MockTime time = new MockTime(0, 0, 0);
    MockScheduler scheduler = new MockScheduler(time);
    Agent agent = createAgent(scheduler);
    AgentClient client = new AgentClient.Builder().maxTries(10).target("localhost", agent.port()).build();
    new ExpectedTasks().waitFor(client);
    final NoOpTaskSpec fooSpec = new NoOpTaskSpec(0, 5);
    client.createWorker(new CreateWorkerRequest(0, "foo", fooSpec));
    new ExpectedTasks().addTask(new ExpectedTaskBuilder("foo").workerState(new WorkerRunning("foo", fooSpec, 0, new TextNode("active"))).build()).waitFor(client);
    time.sleep(1);
    client.destroyWorker(new DestroyWorkerRequest(0));
    client.destroyWorker(new DestroyWorkerRequest(0));
    client.destroyWorker(new DestroyWorkerRequest(1));
    new ExpectedTasks().waitFor(client);
    time.sleep(1);
    final NoOpTaskSpec fooSpec2 = new NoOpTaskSpec(2, 1);
    client.createWorker(new CreateWorkerRequest(1, "foo", fooSpec2));
    new ExpectedTasks().addTask(new ExpectedTaskBuilder("foo").workerState(new WorkerRunning("foo", fooSpec2, 2, new TextNode("active"))).build()).waitFor(client);
    time.sleep(2);
    new ExpectedTasks().addTask(new ExpectedTaskBuilder("foo").workerState(new WorkerDone("foo", fooSpec2, 2, 4, new TextNode("done"), "")).build()).waitFor(client);
    time.sleep(1);
    client.destroyWorker(new DestroyWorkerRequest(1));
    new ExpectedTasks().waitFor(client);
    agent.beginShutdown();
    agent.waitForShutdown();
}

Example 29 with MockScheduler

use of org.apache.kafka.common.utils.MockScheduler in project kafka by apache.

the class CoordinatorTest method testAgentFailureAndTaskExpiry.

/**
 * If an agent fails in the middle of a task and comes back up when the task is considered expired,
 * we want the task to be marked as DONE and not re-sent should a second failure happen.
 */
@Test
public void testAgentFailureAndTaskExpiry() throws Exception {
    MockTime time = new MockTime(0, 0, 0);
    Scheduler scheduler = new MockScheduler(time);
    try (MiniTrogdorCluster cluster = new MiniTrogdorCluster.Builder().addCoordinator("node01").addAgent("node02").scheduler(scheduler).build()) {
        CoordinatorClient coordinatorClient = cluster.coordinatorClient();
        NoOpTaskSpec fooSpec = new NoOpTaskSpec(1, 500);
        coordinatorClient.createTask(new CreateTaskRequest("foo", fooSpec));
        TaskState expectedState = new ExpectedTaskBuilder("foo").taskState(new TaskPending(fooSpec)).build().taskState();
        TaskState resp = coordinatorClient.task(new TaskRequest("foo"));
        assertEquals(expectedState, resp);
        time.sleep(2);
        new ExpectedTasks().addTask(new ExpectedTaskBuilder("foo").taskState(new TaskRunning(fooSpec, 2, new TextNode("active"))).workerState(new WorkerRunning("foo", fooSpec, 2, new TextNode("active"))).build()).waitFor(coordinatorClient).waitFor(cluster.agentClient("node02"));
        cluster.restartAgent("node02");
        time.sleep(550);
        // coordinator heartbeat sees that the agent is back up, re-schedules the task but the agent expires it
        new ExpectedTasks().addTask(new ExpectedTaskBuilder("foo").taskState(new TaskDone(fooSpec, 2, 552, "worker expired", false, null)).workerState(new WorkerDone("foo", fooSpec, 552, 552, null, "worker expired")).build()).waitFor(coordinatorClient).waitFor(cluster.agentClient("node02"));
        cluster.restartAgent("node02");
        // coordinator heartbeat sees that the agent is back up but does not re-schedule the task as it is DONE
        new ExpectedTasks().addTask(new ExpectedTaskBuilder("foo").taskState(new TaskDone(fooSpec, 2, 552, "worker expired", false, null)).build()).waitFor(coordinatorClient).waitFor(cluster.agentClient("node02"));
    }
}

Example 30 with MockScheduler

use of org.apache.kafka.common.utils.MockScheduler in project kafka by apache.

the class CoordinatorTest method testTaskDistribution.

@Test
public void testTaskDistribution() throws Exception {
    MockTime time = new MockTime(0, 0, 0);
    Scheduler scheduler = new MockScheduler(time);
    try (MiniTrogdorCluster cluster = new MiniTrogdorCluster.Builder().addCoordinator("node01").addAgent("node01").addAgent("node02").scheduler(scheduler).build()) {
        CoordinatorClient coordinatorClient = cluster.coordinatorClient();
        AgentClient agentClient1 = cluster.agentClient("node01");
        AgentClient agentClient2 = cluster.agentClient("node02");
        new ExpectedTasks().waitFor(coordinatorClient).waitFor(agentClient1).waitFor(agentClient2);
        NoOpTaskSpec fooSpec = new NoOpTaskSpec(5, 7);
        coordinatorClient.createTask(new CreateTaskRequest("foo", fooSpec));
        new ExpectedTasks().addTask(new ExpectedTaskBuilder("foo").taskState(new TaskPending(fooSpec)).build()).waitFor(coordinatorClient).waitFor(agentClient1).waitFor(agentClient2);
        time.sleep(11);
        ObjectNode status1 = new ObjectNode(JsonNodeFactory.instance);
        status1.set("node01", new TextNode("active"));
        status1.set("node02", new TextNode("active"));
        new ExpectedTasks().addTask(new ExpectedTaskBuilder("foo").taskState(new TaskRunning(fooSpec, 11, status1)).workerState(new WorkerRunning("foo", fooSpec, 11, new TextNode("active"))).build()).waitFor(coordinatorClient).waitFor(agentClient1).waitFor(agentClient2);
        time.sleep(7);
        ObjectNode status2 = new ObjectNode(JsonNodeFactory.instance);
        status2.set("node01", new TextNode("done"));
        status2.set("node02", new TextNode("done"));
        new ExpectedTasks().addTask(new ExpectedTaskBuilder("foo").taskState(new TaskDone(fooSpec, 11, 18, "", false, status2)).workerState(new WorkerDone("foo", fooSpec, 11, 18, new TextNode("done"), "")).build()).waitFor(coordinatorClient).waitFor(agentClient1).waitFor(agentClient2);
    }
}