Examples with ExtendedLatch org.apache.drill.common.concurrent.ExtendedLatch used on opensource projects

Example 6 with ExtendedLatch

use of org.apache.drill.common.concurrent.ExtendedLatch in project drill by apache.

the class TestPauseInjection method pauseOnSpecificBit.

@Test
public void pauseOnSpecificBit() {
    final RemoteServiceSet remoteServiceSet = RemoteServiceSet.getLocalServiceSet();
    final ZookeeperHelper zkHelper = new ZookeeperHelper();
    zkHelper.startZookeeper(1);
    // Creating two drillbits
    final Drillbit drillbit1, drillbit2;
    final DrillConfig drillConfig = zkHelper.getConfig();
    try {
        drillbit1 = Drillbit.start(drillConfig, remoteServiceSet);
        drillbit2 = Drillbit.start(drillConfig, remoteServiceSet);
    } catch (final DrillbitStartupException e) {
        throw new RuntimeException("Failed to start two drillbits.", e);
    }
    final DrillbitContext drillbitContext1 = drillbit1.getContext();
    final DrillbitContext drillbitContext2 = drillbit2.getContext();
    final UserSession session = UserSession.Builder.newBuilder().withCredentials(UserCredentials.newBuilder().setUserName("foo").build()).withUserProperties(UserProperties.getDefaultInstance()).withOptionManager(drillbitContext1.getOptionManager()).build();
    final DrillbitEndpoint drillbitEndpoint1 = drillbitContext1.getEndpoint();
    final String controls = Controls.newBuilder().addPauseOnBit(DummyClass.class, DummyClass.PAUSES, drillbitEndpoint1).build();
    ControlsInjectionUtil.setControls(session, controls);
    {
        final long expectedDuration = 1000L;
        final ExtendedLatch trigger = new ExtendedLatch(1);
        final Pointer<Exception> ex = new Pointer<>();
        final QueryContext queryContext = new QueryContext(session, drillbitContext1, QueryId.getDefaultInstance());
        (new ResumingThread(queryContext, trigger, ex, expectedDuration)).start();
        // test that the pause happens
        final DummyClass dummyClass = new DummyClass(queryContext, trigger);
        final long actualDuration = dummyClass.pauses();
        assertTrue(String.format("Test should stop for at least %d milliseconds.", expectedDuration), expectedDuration <= actualDuration);
        assertTrue("No exception should be thrown.", ex.value == null);
        try {
            queryContext.close();
        } catch (final Exception e) {
            fail("Failed to close query context: " + e);
        }
    }
    {
        final ExtendedLatch trigger = new ExtendedLatch(1);
        final QueryContext queryContext = new QueryContext(session, drillbitContext2, QueryId.getDefaultInstance());
        // if the resume did not happen, the test would hang
        final DummyClass dummyClass = new DummyClass(queryContext, trigger);
        dummyClass.pauses();
        try {
            queryContext.close();
        } catch (final Exception e) {
            fail("Failed to close query context: " + e);
        }
    }
}

Example 7 with ExtendedLatch

use of org.apache.drill.common.concurrent.ExtendedLatch in project drill by apache.

the class TestPauseInjection method pauseInjected.

@Test
public void pauseInjected() {
    final long expectedDuration = 1000L;
    final ExtendedLatch trigger = new ExtendedLatch(1);
    final Pointer<Exception> ex = new Pointer<>();
    final String controls = Controls.newBuilder().addPause(DummyClass.class, DummyClass.PAUSES).build();
    ControlsInjectionUtil.setControls(session, controls);
    final QueryContext queryContext = new QueryContext(session, bits[0].getContext(), QueryId.getDefaultInstance());
    (new ResumingThread(queryContext, trigger, ex, expectedDuration)).start();
    // test that the pause happens
    final DummyClass dummyClass = new DummyClass(queryContext, trigger);
    final long actualDuration = dummyClass.pauses();
    assertTrue(String.format("Test should stop for at least %d milliseconds.", expectedDuration), expectedDuration <= actualDuration);
    assertTrue("No exception should be thrown.", ex.value == null);
    try {
        queryContext.close();
    } catch (final Exception e) {
        fail("Failed to close query context: " + e);
    }
}