Package org.apache.flink.runtime.instance

Examples of org.apache.flink.runtime.instance.Instance

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      final ExecutionVertex targetVertex = edge.getSource().getProducer();
      final ExecutionState executionState = targetVertex.getExecutionState();
     
      // common case - found task running
      if (executionState == ExecutionState.RUNNING) {
        Instance location = targetVertex.getCurrentAssignedResource().getInstance();
       
        if (location.getInstanceConnectionInfo().equals(caller)) {
          // Receiver runs on the same task manager
          return ConnectionInfoLookupResponse.createReceiverFoundAndReady(edge.getOutputChannelId());
        }
        else {
          // Receiver runs on a different task manager
          final InstanceConnectionInfo ici = location.getInstanceConnectionInfo();
          final InetSocketAddress isa = new InetSocketAddress(ici.address(), ici.dataPort());

          int connectionIdx = edge.getSource().getIntermediateResult().getConnectionIndex();
          return ConnectionInfoLookupResponse.createReceiverFoundAndReady(new RemoteReceiver(isa, connectionIdx));
        }
      }
      else if (executionState == ExecutionState.FINISHED) {
        // that should not happen. if there is data pending, the sender cannot yet be done
        // we need to fail the whole affair
        LOG.error("Receiver " + targetVertex + " set to FINISHED even though data is pending");
        fail(new Exception("Channels are not correctly registered"));
        return ConnectionInfoLookupResponse.createReceiverNotFound();
      }
      else if (executionState == ExecutionState.FAILED || executionState == ExecutionState.CANCELED ||
          executionState == ExecutionState.CANCELING)
      {
        return ConnectionInfoLookupResponse.createJobIsAborting();
      }
      else {
        // all other states should not be, because the sender cannot be in CREATED, SCHEDULED, or DEPLOYING
        // state when the receiver is already running
        LOG.error("Channel lookup (backwards) - sender " + targetVertex + " found in inconsistent state " + executionState);
        fail(new Exception("Channels are not correctly registered"));
        return ConnectionInfoLookupResponse.createReceiverNotFound();
      }
    }
   
    //  ----- Request was sent from an output channel (sender side), requesting the input channel (receiver side) ------
    //  -----                                 This is the case for forward data                                   ------
   
    final ExecutionVertex targetVertex = edge.getTarget();
    final ExecutionState executionState = targetVertex.getExecutionState();

    if (executionState == ExecutionState.RUNNING) {
     
      // already online
      Instance location = targetVertex.getCurrentAssignedResource().getInstance();
     
      if (location.getInstanceConnectionInfo().equals(caller)) {
        // Receiver runs on the same task manager
        return ConnectionInfoLookupResponse.createReceiverFoundAndReady(edge.getInputChannelId());
      }
      else {
        // Receiver runs on a different task manager
        final InstanceConnectionInfo ici = location.getInstanceConnectionInfo();
        final InetSocketAddress isa = new InetSocketAddress(ici.address(), ici.dataPort());

        final int connectionIdx = edge.getSource().getIntermediateResult().getConnectionIndex();
        return ConnectionInfoLookupResponse.createReceiverFoundAndReady(new RemoteReceiver(isa, connectionIdx));
      }
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      // task manager mock
      TaskOperationProtocol taskManager = mock(TaskOperationProtocol.class);
      when(taskManager.submitTask(Matchers.any(TaskDeploymentDescriptor.class))).thenReturn(new TaskOperationResult(execId, true));
      when(taskManager.cancelTask(execId)).thenReturn(new TaskOperationResult(execId, true), new TaskOperationResult(execId, false));
     
      Instance instance = getInstance(taskManager);
      AllocatedSlot slot = instance.allocateSlot(new JobID());
     
      vertex.deployToSlot(slot);
     
      assertEquals(ExecutionState.DEPLOYING, vertex.getExecutionState());
     
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      when(taskManager.submitTask(Matchers.any(TaskDeploymentDescriptor.class))).thenReturn(new TaskOperationResult(execId, true));
     
      // first return NOT SUCCESS (task not found, cancel call overtook deploy call), then success (cancel call after deploy call)
      when(taskManager.cancelTask(execId)).thenReturn(new TaskOperationResult(execId, false), new TaskOperationResult(execId, true));
     
      Instance instance = getInstance(taskManager);
      AllocatedSlot slot = instance.allocateSlot(new JobID());
     
      vertex.deployToSlot(slot);
     
      assertEquals(ExecutionState.DEPLOYING, vertex.getExecutionState());
     
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      final ExecutionAttemptID execId = vertex.getCurrentExecutionAttempt().getAttemptId();

      final TaskOperationProtocol taskManager = mock(TaskOperationProtocol.class);
      when(taskManager.cancelTask(execId)).thenReturn(new TaskOperationResult(execId, true));
     
      Instance instance = getInstance(taskManager);
      AllocatedSlot slot = instance.allocateSlot(new JobID());

      setVertexState(vertex, ExecutionState.RUNNING);
      setVertexResource(vertex, slot);
     
      assertEquals(ExecutionState.RUNNING, vertex.getExecutionState());
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      final ExecutionAttemptID execId = vertex.getCurrentExecutionAttempt().getAttemptId();

      final TaskOperationProtocol taskManager = mock(TaskOperationProtocol.class);
      when(taskManager.cancelTask(execId)).thenReturn(new TaskOperationResult(execId, true));
     
      Instance instance = getInstance(taskManager);
      AllocatedSlot slot = instance.allocateSlot(new JobID());

      setVertexState(vertex, ExecutionState.RUNNING);
      setVertexResource(vertex, slot);
     
      assertEquals(ExecutionState.RUNNING, vertex.getExecutionState());
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      final ExecutionAttemptID execId = vertex.getCurrentExecutionAttempt().getAttemptId();

      final TaskOperationProtocol taskManager = mock(TaskOperationProtocol.class);
      when(taskManager.cancelTask(execId)).thenReturn(new TaskOperationResult(execId, false));
     
      Instance instance = getInstance(taskManager);
      AllocatedSlot slot = instance.allocateSlot(new JobID());

      setVertexState(vertex, ExecutionState.RUNNING);
      setVertexResource(vertex, slot);
     
      assertEquals(ExecutionState.RUNNING, vertex.getExecutionState());
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      final ExecutionAttemptID execId = vertex.getCurrentExecutionAttempt().getAttemptId();

      final TaskOperationProtocol taskManager = mock(TaskOperationProtocol.class);
      when(taskManager.cancelTask(execId)).thenThrow(new IOException("RPC call failed"));
     
      Instance instance = getInstance(taskManager);
      AllocatedSlot slot = instance.allocateSlot(new JobID());

      setVertexState(vertex, ExecutionState.RUNNING);
      setVertexResource(vertex, slot);
     
      assertEquals(ExecutionState.RUNNING, vertex.getExecutionState());
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      final ExecutionAttemptID execId = vertex.getCurrentExecutionAttempt().getAttemptId();

      final TaskOperationProtocol taskManager = mock(TaskOperationProtocol.class);
      when(taskManager.cancelTask(execId)).thenThrow(new IOException("RPC call failed"));
     
      Instance instance = getInstance(taskManager);
      AllocatedSlot slot = instance.allocateSlot(new JobID());

      setVertexState(vertex, ExecutionState.RUNNING);
      setVertexResource(vertex, slot);
     
      assertEquals(ExecutionState.RUNNING, vertex.getExecutionState());
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      // 2)
      // deploying after canceling from CREATED needs to raise an exception, because
      // the scheduler (or any caller) needs to know that the slot should be released
      try {
        TaskOperationProtocol taskManager = mock(TaskOperationProtocol.class);
        Instance instance = getInstance(taskManager);
        AllocatedSlot slot = instance.allocateSlot(new JobID());
       
        vertex.deployToSlot(slot);
        fail("Method should throw an exception");
      }
      catch (IllegalStateException e) {
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  @Test
  public void testAddAndRemoveInstance() {
    try {
      Scheduler scheduler = new Scheduler();
     
      Instance i1 = getRandomInstance(2);
      Instance i2 = getRandomInstance(2);
      Instance i3 = getRandomInstance(2);
     
      assertEquals(0, scheduler.getNumberOfAvailableInstances());
      assertEquals(0, scheduler.getNumberOfAvailableSlots());
      scheduler.newInstanceAvailable(i1);
      assertEquals(1, scheduler.getNumberOfAvailableInstances());
      assertEquals(2, scheduler.getNumberOfAvailableSlots());
      scheduler.newInstanceAvailable(i2);
      assertEquals(2, scheduler.getNumberOfAvailableInstances());
      assertEquals(4, scheduler.getNumberOfAvailableSlots());
      scheduler.newInstanceAvailable(i3);
      assertEquals(3, scheduler.getNumberOfAvailableInstances());
      assertEquals(6, scheduler.getNumberOfAvailableSlots());
     
      // cannot add available instance again
      try {
        scheduler.newInstanceAvailable(i2);
        fail("Scheduler accepted instance twice");
      }
      catch (IllegalArgumentException e) {
        // bueno!
      }
     
      // some instances die
      assertEquals(3, scheduler.getNumberOfAvailableInstances());
      assertEquals(6, scheduler.getNumberOfAvailableSlots());
      scheduler.instanceDied(i2);
      assertEquals(2, scheduler.getNumberOfAvailableInstances());
      assertEquals(4, scheduler.getNumberOfAvailableSlots());
     
      // try to add a dead instance
      try {
        scheduler.newInstanceAvailable(i2);
        fail("Scheduler accepted dead instance");
      }
      catch (IllegalArgumentException e) {
        // stimmt
       
      }
           
      scheduler.instanceDied(i1);
      assertEquals(1, scheduler.getNumberOfAvailableInstances());
      assertEquals(2, scheduler.getNumberOfAvailableSlots());
      scheduler.instanceDied(i3);
      assertEquals(0, scheduler.getNumberOfAvailableInstances());
      assertEquals(0, scheduler.getNumberOfAvailableSlots());
     
      assertFalse(i1.isAlive());
      assertFalse(i2.isAlive());
      assertFalse(i3.isAlive());
    }
    catch (Exception e) {
      e.printStackTrace();
      fail(e.getMessage());
    }
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Related Classes of org.apache.flink.runtime.instance.Instance

  • org.apache.flink.runtime.executiongraph.Execution
  • org.apache.flink.runtime.executiongraph.ExecutionGraph
  • org.apache.flink.runtime.executiongraph.ExecutionGraphDeploymentTest
  • org.apache.flink.runtime.executiongraph.ExecutionGraphRestartTest
  • org.apache.flink.runtime.executiongraph.ExecutionGraphTestUtils
  • org.apache.flink.runtime.executiongraph.ExecutionVertexCancelTest
  • org.apache.flink.runtime.executiongraph.ExecutionVertexDeploymentTest
  • org.apache.flink.runtime.executiongraph.ExecutionVertexSchedulingTest
  • org.apache.flink.runtime.executiongraph.TaskManagerLossFailsTasksTest
  • org.apache.flink.runtime.jobmanager.scheduler.Scheduler
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