Examples with CreateStreamRequest com.datatorrent.stram.plan.logical.requests.CreateStreamRequest used on opensource projects

Example 1 with CreateStreamRequest

use of com.datatorrent.stram.plan.logical.requests.CreateStreamRequest in project apex-core by apache.

the class StramRecoveryTest method testContainerManager.

/**
   * Test serialization of the container manager with mock execution layer.
   * @throws Exception
   */
private void testContainerManager(StorageAgent agent) throws Exception {
    dag.setAttribute(OperatorContext.STORAGE_AGENT, agent);
    StatsListeningOperator o1 = dag.addOperator("o1", StatsListeningOperator.class);
    FSRecoveryHandler recoveryHandler = new FSRecoveryHandler(dag.assertAppPath(), new Configuration(false));
    StreamingContainerManager scm = StreamingContainerManager.getInstance(recoveryHandler, dag, false);
    File expFile = new File(recoveryHandler.getDir(), FSRecoveryHandler.FILE_SNAPSHOT);
    Assert.assertTrue("snapshot file " + expFile, expFile.exists());
    PhysicalPlan plan = scm.getPhysicalPlan();
    assertEquals("number required containers", 1, plan.getContainers().size());
    PTOperator o1p1 = plan.getOperators(dag.getMeta(o1)).get(0);
    @SuppressWarnings("UnusedAssignment") MockContainer /* sneaky: the constructor does some changes to the container */
    mc = new MockContainer(scm, o1p1.getContainer());
    PTContainer originalContainer = o1p1.getContainer();
    Assert.assertNotNull(o1p1.getContainer().bufferServerAddress);
    assertEquals(PTContainer.State.ACTIVE, o1p1.getContainer().getState());
    assertEquals("state " + o1p1, PTOperator.State.PENDING_DEPLOY, o1p1.getState());
    // test restore initial snapshot + log
    dag = StramTestSupport.createDAG(testMeta);
    scm = StreamingContainerManager.getInstance(new FSRecoveryHandler(dag.assertAppPath(), new Configuration(false)), dag, false);
    dag = scm.getLogicalPlan();
    plan = scm.getPhysicalPlan();
    o1p1 = plan.getOperators(dag.getOperatorMeta("o1")).get(0);
    assertEquals("post restore state " + o1p1, PTOperator.State.PENDING_DEPLOY, o1p1.getState());
    o1 = (StatsListeningOperator) o1p1.getOperatorMeta().getOperator();
    assertEquals("containerId", originalContainer.getExternalId(), o1p1.getContainer().getExternalId());
    assertEquals("stats listener", 1, o1p1.statsListeners.size());
    // stats are not logged
    assertEquals("number stats calls", 0, o1.processStatsCnt);
    assertEquals("post restore 1", PTContainer.State.ALLOCATED, o1p1.getContainer().getState());
    assertEquals("post restore 1", originalContainer.bufferServerAddress, o1p1.getContainer().bufferServerAddress);
    StreamingContainerAgent sca = scm.getContainerAgent(originalContainer.getExternalId());
    Assert.assertNotNull("allocated container restored " + originalContainer, sca);
    assertEquals("memory usage allocated container", (int) OperatorContext.MEMORY_MB.defaultValue, sca.container.getAllocatedMemoryMB());
    // YARN-1490 - simulate container terminated on AM recovery
    scm.scheduleContainerRestart(originalContainer.getExternalId());
    assertEquals("memory usage of failed container", 0, sca.container.getAllocatedMemoryMB());
    Checkpoint firstCheckpoint = new Checkpoint(3, 0, 0);
    mc = new MockContainer(scm, o1p1.getContainer());
    checkpoint(scm, o1p1, firstCheckpoint);
    mc.stats(o1p1.getId()).deployState(OperatorHeartbeat.DeployState.ACTIVE).currentWindowId(3).checkpointWindowId(3);
    mc.sendHeartbeat();
    assertEquals("state " + o1p1, PTOperator.State.ACTIVE, o1p1.getState());
    // logical plan modification triggers snapshot
    CreateOperatorRequest cor = new CreateOperatorRequest();
    cor.setOperatorFQCN(GenericTestOperator.class.getName());
    cor.setOperatorName("o2");
    CreateStreamRequest csr = new CreateStreamRequest();
    csr.setSourceOperatorName("o1");
    csr.setSourceOperatorPortName("outport");
    csr.setSinkOperatorName("o2");
    csr.setSinkOperatorPortName("inport1");
    FutureTask<?> lpmf = scm.logicalPlanModification(Lists.newArrayList(cor, csr));
    while (!lpmf.isDone()) {
        scm.monitorHeartbeat(false);
    }
    // unmask exception, if any
    Assert.assertNull(lpmf.get());
    Assert.assertSame("dag references", dag, scm.getLogicalPlan());
    assertEquals("number operators after plan modification", 2, dag.getAllOperators().size());
    // set operator state triggers journal write
    o1p1.setState(PTOperator.State.INACTIVE);
    Checkpoint offlineCheckpoint = new Checkpoint(10, 0, 0);
    // write checkpoint while AM is out,
    // it needs to be picked up as part of restore
    checkpoint(scm, o1p1, offlineCheckpoint);
    // test restore
    dag = StramTestSupport.createDAG(testMeta);
    scm = StreamingContainerManager.getInstance(new FSRecoveryHandler(dag.assertAppPath(), new Configuration(false)), dag, false);
    Assert.assertNotSame("dag references", dag, scm.getLogicalPlan());
    assertEquals("number operators after restore", 2, scm.getLogicalPlan().getAllOperators().size());
    dag = scm.getLogicalPlan();
    plan = scm.getPhysicalPlan();
    o1p1 = plan.getOperators(dag.getOperatorMeta("o1")).get(0);
    assertEquals("post restore state " + o1p1, PTOperator.State.INACTIVE, o1p1.getState());
    o1 = (StatsListeningOperator) o1p1.getOperatorMeta().getOperator();
    assertEquals("stats listener", 1, o1p1.statsListeners.size());
    assertEquals("number stats calls post restore", 1, o1.processStatsCnt);
    assertEquals("post restore 1", PTContainer.State.ACTIVE, o1p1.getContainer().getState());
    assertEquals("post restore 1", originalContainer.bufferServerAddress, o1p1.getContainer().bufferServerAddress);
    // offline checkpoint detection
    assertEquals("checkpoints after recovery", Lists.newArrayList(firstCheckpoint, offlineCheckpoint), o1p1.checkpoints);
}