Package com.facebook.presto.hive.HiveSplitSourceProvider

Examples of com.facebook.presto.hive.HiveSplitSourceProvider.HiveSplitSource

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    @Test
    public void testOutstandingSplitCount()
            throws Exception
    {
        SuspendingExecutor suspendingExecutor = createSuspendingExecutor();
        HiveSplitSource hiveSplitSource = new HiveSplitSource("test", 10, suspendingExecutor);

        // add 10 splits
        for (int i = 0; i < 10; i++) {
            hiveSplitSource.addToQueue(new TestSplit(i));
            assertEquals(hiveSplitSource.getOutstandingSplitCount(), i + 1);
        }

        // remove 1 split
        assertEquals(hiveSplitSource.getNextBatch(1).size(), 1);
        assertEquals(hiveSplitSource.getOutstandingSplitCount(), 9);

        // remove 4 splits
        assertEquals(hiveSplitSource.getNextBatch(4).size(), 4);
        assertEquals(hiveSplitSource.getOutstandingSplitCount(), 5);

        // try to remove 20 splits, and verify we only got 5
        assertEquals(hiveSplitSource.getNextBatch(20).size(), 5);
        assertEquals(hiveSplitSource.getOutstandingSplitCount(), 0);
    }
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    @Test
    public void testSuspendResume()
            throws Exception
    {
        SuspendingExecutor suspendingExecutor = createSuspendingExecutor();
        HiveSplitSource hiveSplitSource = new HiveSplitSource("test", 10, suspendingExecutor);

        // almost fill the source
        for (int i = 0; i < 9; i++) {
            hiveSplitSource.addToQueue(new TestSplit(i));
            assertEquals(hiveSplitSource.getOutstandingSplitCount(), i + 1);
            assertFalse(suspendingExecutor.isSuspended());
        }

        // add one more split so the source is now full and verify that the executor is suspended
        hiveSplitSource.addToQueue(new TestSplit(10));
        assertEquals(hiveSplitSource.getOutstandingSplitCount(), 10);
        assertTrue(suspendingExecutor.isSuspended());

        // remove one split so the source is no longer full and verify the executor is resumed
        assertEquals(hiveSplitSource.getNextBatch(1).size(), 1);
        assertEquals(hiveSplitSource.getOutstandingSplitCount(), 9);
        assertFalse(suspendingExecutor.isSuspended());

        // add two more splits so the source is now full and verify that the executor is suspended
        hiveSplitSource.addToQueue(new TestSplit(11));
        hiveSplitSource.addToQueue(new TestSplit(12));
        assertEquals(hiveSplitSource.getOutstandingSplitCount(), 11);
        assertTrue(suspendingExecutor.isSuspended());

        // remove two splits so the source is no longer full and verify the executor is resumed
        assertEquals(hiveSplitSource.getNextBatch(2).size(), 2);
        assertEquals(hiveSplitSource.getOutstandingSplitCount(), 9);
        assertFalse(suspendingExecutor.isSuspended());
    }
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    @Test
    public void testFail()
            throws Exception
    {
        SuspendingExecutor suspendingExecutor = createSuspendingExecutor();
        HiveSplitSource hiveSplitSource = new HiveSplitSource("test", 10, suspendingExecutor);

        // add some splits
        for (int i = 0; i < 5; i++) {
            hiveSplitSource.addToQueue(new TestSplit(i));
            assertEquals(hiveSplitSource.getOutstandingSplitCount(), i + 1);
        }

        // remove a split and verify
        assertEquals(hiveSplitSource.getNextBatch(1).size(), 1);
        assertEquals(hiveSplitSource.getOutstandingSplitCount(), 4);

        // fail source
        hiveSplitSource.fail(new RuntimeException("test"));
        assertEquals(hiveSplitSource.getOutstandingSplitCount(), 4);

        // try to remove a split and verify we got the expected exception
        try {
            hiveSplitSource.getNextBatch(1);
            fail("expected RuntimeException");
        }
        catch (RuntimeException e) {
            assertEquals(e.getMessage(), "test");
        }
        assertEquals(hiveSplitSource.getOutstandingSplitCount(), 4);

        // attempt to add another split and verify it does not work
        hiveSplitSource.addToQueue(new TestSplit(99));
        assertEquals(hiveSplitSource.getOutstandingSplitCount(), 4);

        // fail source again
        hiveSplitSource.fail(new RuntimeException("another failure"));
        assertEquals(hiveSplitSource.getOutstandingSplitCount(), 4);

        // try to remove a split and verify we got the first exception
        try {
            hiveSplitSource.getNextBatch(1);
            fail("expected RuntimeException");
        }
        catch (RuntimeException e) {
            assertEquals(e.getMessage(), "test");
        }
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    @Test
    public void testReaderWaitsForSplits()
            throws Exception
    {
        SuspendingExecutor suspendingExecutor = createSuspendingExecutor();
        final HiveSplitSource hiveSplitSource = new HiveSplitSource("test", 10, suspendingExecutor);

        final SettableFuture<Split> splits = SettableFuture.create();

        // create a thread that will get a split
        final CountDownLatch started = new CountDownLatch(1);
        Thread getterThread = new Thread(new Runnable()
        {
            @Override
            public void run()
            {
                try {
                    started.countDown();
                    List<Split> batch = hiveSplitSource.getNextBatch(1);
                    assertEquals(batch.size(), 1);
                    splits.set(batch.get(0));
                }
                catch (Throwable e) {
                    splits.setException(e);
                }
            }
        });
        getterThread.start();

        try {
            // wait for the thread to be started
            assertTrue(started.await(1, TimeUnit.SECONDS));

            // sleep for a bit, and assure the thread is blocked
            TimeUnit.MILLISECONDS.sleep(200);
            assertTrue(!splits.isDone());

            // add a split
            hiveSplitSource.addToQueue(new TestSplit(33));

            // wait for thread to get the split
            Split split = splits.get(200, TimeUnit.MILLISECONDS);
            assertSame(split.getInfo(), 33);
        }
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    @Test
    public void testOutstandingSplitCount()
            throws Exception
    {
        SuspendingExecutor suspendingExecutor = createSuspendingExecutor();
        HiveSplitSource hiveSplitSource = new HiveSplitSource("test", 10, suspendingExecutor);

        // add 10 splits
        for (int i = 0; i < 10; i++) {
            hiveSplitSource.addToQueue(new TestSplit(i));
            assertEquals(hiveSplitSource.getOutstandingSplitCount(), i + 1);
        }

        // remove 1 split
        assertEquals(hiveSplitSource.getNextBatch(1).size(), 1);
        assertEquals(hiveSplitSource.getOutstandingSplitCount(), 9);

        // remove 4 splits
        assertEquals(hiveSplitSource.getNextBatch(4).size(), 4);
        assertEquals(hiveSplitSource.getOutstandingSplitCount(), 5);

        // try to remove 20 splits, and verify we only got 5
        assertEquals(hiveSplitSource.getNextBatch(20).size(), 5);
        assertEquals(hiveSplitSource.getOutstandingSplitCount(), 0);
    }
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    @Test
    public void testSuspendResume()
            throws Exception
    {
        SuspendingExecutor suspendingExecutor = createSuspendingExecutor();
        HiveSplitSource hiveSplitSource = new HiveSplitSource("test", 10, suspendingExecutor);

        // almost fill the source
        for (int i = 0; i < 9; i++) {
            hiveSplitSource.addToQueue(new TestSplit(i));
            assertEquals(hiveSplitSource.getOutstandingSplitCount(), i + 1);
            assertFalse(suspendingExecutor.isSuspended());
        }

        // add one more split so the source is now full and verify that the executor is suspended
        hiveSplitSource.addToQueue(new TestSplit(10));
        assertEquals(hiveSplitSource.getOutstandingSplitCount(), 10);
        assertTrue(suspendingExecutor.isSuspended());

        // remove one split so the source is no longer full and verify the executor is resumed
        assertEquals(hiveSplitSource.getNextBatch(1).size(), 1);
        assertEquals(hiveSplitSource.getOutstandingSplitCount(), 9);
        assertFalse(suspendingExecutor.isSuspended());

        // add two more splits so the source is now full and verify that the executor is suspended
        hiveSplitSource.addToQueue(new TestSplit(11));
        hiveSplitSource.addToQueue(new TestSplit(12));
        assertEquals(hiveSplitSource.getOutstandingSplitCount(), 11);
        assertTrue(suspendingExecutor.isSuspended());

        // remove two splits so the source is no longer full and verify the executor is resumed
        assertEquals(hiveSplitSource.getNextBatch(2).size(), 2);
        assertEquals(hiveSplitSource.getOutstandingSplitCount(), 9);
        assertFalse(suspendingExecutor.isSuspended());
    }
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    @Test
    public void testFail()
            throws Exception
    {
        SuspendingExecutor suspendingExecutor = createSuspendingExecutor();
        HiveSplitSource hiveSplitSource = new HiveSplitSource("test", 10, suspendingExecutor);

        // add some splits
        for (int i = 0; i < 5; i++) {
            hiveSplitSource.addToQueue(new TestSplit(i));
            assertEquals(hiveSplitSource.getOutstandingSplitCount(), i + 1);
        }

        // remove a split and verify
        assertEquals(hiveSplitSource.getNextBatch(1).size(), 1);
        assertEquals(hiveSplitSource.getOutstandingSplitCount(), 4);

        // fail source
        hiveSplitSource.fail(new RuntimeException("test"));
        assertEquals(hiveSplitSource.getOutstandingSplitCount(), 4);

        // try to remove a split and verify we got the expected exception
        try {
            hiveSplitSource.getNextBatch(1);
            fail("expected RuntimeException");
        }
        catch (RuntimeException e) {
            assertEquals(e.getCause().getMessage(), "test");
        }
        assertEquals(hiveSplitSource.getOutstandingSplitCount(), 4);

        // attempt to add another split and verify it does not work
        hiveSplitSource.addToQueue(new TestSplit(99));
        assertEquals(hiveSplitSource.getOutstandingSplitCount(), 4);

        // fail source again
        hiveSplitSource.fail(new RuntimeException("another failure"));
        assertEquals(hiveSplitSource.getOutstandingSplitCount(), 4);

        // try to remove a split and verify we got the first exception
        try {
            hiveSplitSource.getNextBatch(1);
            fail("expected RuntimeException");
        }
        catch (RuntimeException e) {
            assertEquals(e.getCause().getMessage(), "test");
        }
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    @Test
    public void testReaderWaitsForSplits()
            throws Exception
    {
        SuspendingExecutor suspendingExecutor = createSuspendingExecutor();
        final HiveSplitSource hiveSplitSource = new HiveSplitSource("test", 10, suspendingExecutor);

        final SettableFuture<Split> splits = SettableFuture.create();

        // create a thread that will get a split
        final CountDownLatch started = new CountDownLatch(1);
        Thread getterThread = new Thread(new Runnable()
        {
            @Override
            public void run()
            {
                try {
                    started.countDown();
                    List<Split> batch = hiveSplitSource.getNextBatch(1);
                    assertEquals(batch.size(), 1);
                    splits.set(batch.get(0));
                }
                catch (Throwable e) {
                    splits.setException(e);
                }
            }
        });
        getterThread.start();

        try {
            // wait for the thread to be started
            assertTrue(started.await(1, TimeUnit.SECONDS));

            // sleep for a bit, and assure the thread is blocked
            TimeUnit.MILLISECONDS.sleep(200);
            assertTrue(!splits.isDone());

            // add a split
            hiveSplitSource.addToQueue(new TestSplit(33));

            // wait for thread to get the split
            Split split = splits.get(200, TimeUnit.MILLISECONDS);
            assertSame(split.getInfo(), 33);
        }
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    @Test
    public void testOutstandingSplitCount()
            throws Exception
    {
        SuspendingExecutor suspendingExecutor = createSuspendingExecutor();
        HiveSplitSource hiveSplitSource = new HiveSplitSource("test", 10, suspendingExecutor);

        // add 10 splits
        for (int i = 0; i < 10; i++) {
            hiveSplitSource.addToQueue(new TestSplit(i));
            assertEquals(hiveSplitSource.getOutstandingSplitCount(), i + 1);
        }

        // remove 1 split
        assertEquals(hiveSplitSource.getNextBatch(1).size(), 1);
        assertEquals(hiveSplitSource.getOutstandingSplitCount(), 9);

        // remove 4 splits
        assertEquals(hiveSplitSource.getNextBatch(4).size(), 4);
        assertEquals(hiveSplitSource.getOutstandingSplitCount(), 5);

        // try to remove 20 splits, and verify we only got 5
        assertEquals(hiveSplitSource.getNextBatch(20).size(), 5);
        assertEquals(hiveSplitSource.getOutstandingSplitCount(), 0);
    }
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    @Test
    public void testSuspendResume()
            throws Exception
    {
        SuspendingExecutor suspendingExecutor = createSuspendingExecutor();
        HiveSplitSource hiveSplitSource = new HiveSplitSource("test", 10, suspendingExecutor);

        // almost fill the source
        for (int i = 0; i < 9; i++) {
            hiveSplitSource.addToQueue(new TestSplit(i));
            assertEquals(hiveSplitSource.getOutstandingSplitCount(), i + 1);
            assertFalse(suspendingExecutor.isSuspended());
        }

        // add one more split so the source is now full and verify that the executor is suspended
        hiveSplitSource.addToQueue(new TestSplit(10));
        assertEquals(hiveSplitSource.getOutstandingSplitCount(), 10);
        assertTrue(suspendingExecutor.isSuspended());

        // remove one split so the source is no longer full and verify the executor is resumed
        assertEquals(hiveSplitSource.getNextBatch(1).size(), 1);
        assertEquals(hiveSplitSource.getOutstandingSplitCount(), 9);
        assertFalse(suspendingExecutor.isSuspended());

        // add two more splits so the source is now full and verify that the executor is suspended
        hiveSplitSource.addToQueue(new TestSplit(11));
        hiveSplitSource.addToQueue(new TestSplit(12));
        assertEquals(hiveSplitSource.getOutstandingSplitCount(), 11);
        assertTrue(suspendingExecutor.isSuspended());

        // remove two splits so the source is no longer full and verify the executor is resumed
        assertEquals(hiveSplitSource.getNextBatch(2).size(), 2);
        assertEquals(hiveSplitSource.getOutstandingSplitCount(), 9);
        assertFalse(suspendingExecutor.isSuspended());
    }
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  • com.facebook.presto.hive.TestHiveSplitSource
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