Examples with ExecutionVertex org.apache.flink.runtime.executiongraph.ExecutionVertex used on opensource projects

Example 1 with ExecutionVertex

use of org.apache.flink.runtime.executiongraph.ExecutionVertex in project flink by apache.

the class BackPressureStatsTrackerTest method mockExecutionVertex.

private ExecutionVertex mockExecutionVertex(ExecutionJobVertex jobVertex, int subTaskIndex) {
    Execution exec = mock(Execution.class);
    when(exec.getAttemptId()).thenReturn(new ExecutionAttemptID());
    JobVertexID id = jobVertex.getJobVertexId();
    ExecutionVertex vertex = mock(ExecutionVertex.class);
    when(vertex.getJobvertexId()).thenReturn(id);
    when(vertex.getCurrentExecutionAttempt()).thenReturn(exec);
    when(vertex.getParallelSubtaskIndex()).thenReturn(subTaskIndex);
    return vertex;
}

Example 2 with ExecutionVertex

use of org.apache.flink.runtime.executiongraph.ExecutionVertex in project flink by apache.

the class StackTraceSampleCoordinatorTest method testCollectStackTraceForUnknownTask.

/** Tests that collecting for a unknown task fails. */
@Test(expected = IllegalArgumentException.class)
public void testCollectStackTraceForUnknownTask() throws Exception {
    ExecutionVertex[] vertices = new ExecutionVertex[] { mockExecutionVertex(new ExecutionAttemptID(), ExecutionState.RUNNING, true) };
    coord.triggerStackTraceSample(vertices, 1, Time.milliseconds(100L), 0);
    coord.collectStackTraces(0, new ExecutionAttemptID(), new ArrayList<StackTraceElement[]>());
}

Example 3 with ExecutionVertex

use of org.apache.flink.runtime.executiongraph.ExecutionVertex in project flink by apache.

the class StackTraceSampleCoordinatorTest method testCancelStackTraceSample.

/** Tests cancelling of a pending sample. */
@Test
public void testCancelStackTraceSample() throws Exception {
    ExecutionVertex[] vertices = new ExecutionVertex[] { mockExecutionVertex(new ExecutionAttemptID(), ExecutionState.RUNNING, true) };
    Future<StackTraceSample> sampleFuture = coord.triggerStackTraceSample(vertices, 1, Time.milliseconds(100L), 0);
    assertFalse(sampleFuture.isDone());
    // Cancel
    coord.cancelStackTraceSample(0, null);
    // Verify completed
    assertTrue(sampleFuture.isDone());
    // Verify no more pending samples
    assertEquals(0, coord.getNumberOfPendingSamples());
}

Example 4 with ExecutionVertex

use of org.apache.flink.runtime.executiongraph.ExecutionVertex in project flink by apache.

the class StackTraceSampleCoordinatorTest method testTriggerStackTraceSample.

/** Tests simple trigger and collect of stack trace samples. */
@Test
public void testTriggerStackTraceSample() throws Exception {
    ExecutionVertex[] vertices = new ExecutionVertex[] { mockExecutionVertex(new ExecutionAttemptID(), ExecutionState.RUNNING, true), mockExecutionVertex(new ExecutionAttemptID(), ExecutionState.RUNNING, true), mockExecutionVertex(new ExecutionAttemptID(), ExecutionState.RUNNING, true), mockExecutionVertex(new ExecutionAttemptID(), ExecutionState.RUNNING, true) };
    int numSamples = 1;
    Time delayBetweenSamples = Time.milliseconds(100L);
    int maxStackTraceDepth = 0;
    Future<StackTraceSample> sampleFuture = coord.triggerStackTraceSample(vertices, numSamples, delayBetweenSamples, maxStackTraceDepth);
    // Verify messages have been sent
    for (ExecutionVertex vertex : vertices) {
        ExecutionAttemptID expectedExecutionId = vertex.getCurrentExecutionAttempt().getAttemptId();
        TriggerStackTraceSample expectedMsg = new TriggerStackTraceSample(0, expectedExecutionId, numSamples, delayBetweenSamples, maxStackTraceDepth);
        verify(vertex.getCurrentExecutionAttempt()).requestStackTraceSample(eq(0), eq(numSamples), eq(delayBetweenSamples), eq(maxStackTraceDepth), any(Time.class));
    }
    assertFalse(sampleFuture.isDone());
    StackTraceElement[] stackTraceSample = Thread.currentThread().getStackTrace();
    List<StackTraceElement[]> traces = new ArrayList<>();
    traces.add(stackTraceSample);
    traces.add(stackTraceSample);
    traces.add(stackTraceSample);
    // Collect stack traces
    for (int i = 0; i < vertices.length; i++) {
        ExecutionAttemptID executionId = vertices[i].getCurrentExecutionAttempt().getAttemptId();
        coord.collectStackTraces(0, executionId, traces);
        if (i == vertices.length - 1) {
            assertTrue(sampleFuture.isDone());
        } else {
            assertFalse(sampleFuture.isDone());
        }
    }
    // Verify completed stack trace sample
    StackTraceSample sample = sampleFuture.get();
    assertEquals(0, sample.getSampleId());
    assertTrue(sample.getEndTime() >= sample.getStartTime());
    Map<ExecutionAttemptID, List<StackTraceElement[]>> tracesByTask = sample.getStackTraces();
    for (ExecutionVertex vertex : vertices) {
        ExecutionAttemptID executionId = vertex.getCurrentExecutionAttempt().getAttemptId();
        List<StackTraceElement[]> sampleTraces = tracesByTask.get(executionId);
        assertNotNull("Task not found", sampleTraces);
        assertTrue(traces.equals(sampleTraces));
    }
    // Verify no more pending sample
    assertEquals(0, coord.getNumberOfPendingSamples());
    // Verify no error on late collect
    coord.collectStackTraces(0, vertices[0].getCurrentExecutionAttempt().getAttemptId(), traces);
}

Example 5 with ExecutionVertex

use of org.apache.flink.runtime.executiongraph.ExecutionVertex in project flink by apache.

the class StackTraceSampleCoordinatorTest method testTriggerStackTraceSampleTimeout.

/** Tests that samples time out if they don't finish in time. */
@Test(timeout = 1000L)
public void testTriggerStackTraceSampleTimeout() throws Exception {
    int timeout = 100;
    coord = new StackTraceSampleCoordinator(system.dispatcher(), timeout);
    final ScheduledExecutorService scheduledExecutorService = new ScheduledThreadPoolExecutor(1);
    try {
        ExecutionVertex[] vertices = new ExecutionVertex[] { mockExecutionVertexWithTimeout(new ExecutionAttemptID(), ExecutionState.RUNNING, scheduledExecutorService, timeout) };
        Future<StackTraceSample> sampleFuture = coord.triggerStackTraceSample(vertices, 1, Time.milliseconds(100L), 0);
        // Wait for the timeout
        Thread.sleep(timeout * 2);
        boolean success = false;
        for (int i = 0; i < 10; i++) {
            if (sampleFuture.isDone()) {
                success = true;
                break;
            }
            Thread.sleep(timeout);
        }
        assertTrue("Sample did not time out", success);
        try {
            sampleFuture.get();
            fail("Expected exception.");
        } catch (ExecutionException e) {
            assertTrue(e.getCause().getCause().getMessage().contains("Timeout"));
        }
        // Collect after the timeout (should be ignored)
        ExecutionAttemptID executionId = vertices[0].getCurrentExecutionAttempt().getAttemptId();
        coord.collectStackTraces(0, executionId, new ArrayList<StackTraceElement[]>());
    } finally {
        scheduledExecutorService.shutdownNow();
    }
}