Examples with JournalStructure com.questdb.store.factory.configuration.JournalStructure used on opensource projects

Example 61 with JournalStructure

use of com.questdb.store.factory.configuration.JournalStructure in project questdb by bluestreak01.

the class JournalTest method testInvalidColumnName.

@Test
public void testInvalidColumnName() {
    File base = getFactory().getConfiguration().getJournalBase();
    File dir = new File(base, "x");
    Assert.assertFalse(dir.exists());
    try {
        getFactory().writer(new JournalStructure("x").$sym("x").index().$sym("y").index().$sym("z\0is\0bad").index().$());
        Assert.fail();
    } catch (JournalException ignore) {
    }
    getFactory().expire();
    Assert.assertTrue(dir.exists());
    Assert.assertTrue(Files.delete(dir));
}

Example 62 with JournalStructure

use of com.questdb.store.factory.configuration.JournalStructure in project questdb by bluestreak01.

the class CachingReaderFactoryTest method testLockUnlockMultiple.

@Test
public void testLockUnlockMultiple() throws Exception {
    final JournalMetadata<?> m1 = new JournalStructure("x").$date("ts").$().build();
    getFactory().writer(m1).close();
    try (final CachingReaderFactory rf = new CachingReaderFactory(factoryContainer.getConfiguration(), 1000, 2)) {
        Journal r1 = rf.reader(m1);
        Journal r2 = rf.reader(m1);
        r1.close();
        try {
            rf.lock(m1.getName());
        } catch (RetryLockException e) {
            e.printStackTrace();
        }
        r2.close();
        rf.lock(m1.getName());
        rf.unlock(m1.getName());
    }
}

Example 63 with JournalStructure

use of com.questdb.store.factory.configuration.JournalStructure in project questdb by bluestreak01.

the class CachingReaderFactoryTest method testCloseWithInactiveReader.

@Test
public void testCloseWithInactiveReader() throws Exception {
    // create journal
    final JournalMetadata<?> m = new JournalStructure("x").$date("ts").$().build();
    ((WriterFactory) getFactory()).writer(m).close();
    try (final CachingReaderFactory rf = new CachingReaderFactory(factoryContainer.getConfiguration(), 1000, 2)) {
        Journal reader = rf.reader(m);
        Assert.assertNotNull(reader);
        reader.close();
        Assert.assertTrue(reader.isOpen());
        rf.close();
        Assert.assertFalse(reader.isOpen());
    }
}

Example 64 with JournalStructure

use of com.questdb.store.factory.configuration.JournalStructure in project questdb by bluestreak01.

the class CachingReaderFactoryTest method testLockBusyReader.

@Test
public void testLockBusyReader() throws Exception {
    final int readerCount = 5;
    int threadCount = 2;
    final int iterations = 10000;
    // create journals to read
    final JournalMetadata<?>[] meta = new JournalMetadata[readerCount];
    for (int i = 0; i < readerCount; i++) {
        final JournalMetadata<?> m = new JournalStructure("x" + i).$date("ts").$().build();
        ((WriterFactory) getFactory()).writer(m).close();
        meta[i] = m;
    }
    try {
        try (final CachingReaderFactory rf = new CachingReaderFactory(factoryContainer.getConfiguration(), 1000, 2)) {
            final CyclicBarrier barrier = new CyclicBarrier(threadCount);
            final CountDownLatch halt = new CountDownLatch(threadCount);
            final AtomicInteger errors = new AtomicInteger();
            final LongList lockTimes = new LongList();
            final LongList workerTimes = new LongList();
            new Thread(() -> {
                Rnd rnd = new Rnd();
                try {
                    barrier.await();
                    String name = null;
                    for (int i = 0; i < iterations; i++) {
                        if (name == null) {
                            name = meta[rnd.nextPositiveInt() % readerCount].getName();
                        }
                        while (true) {
                            try {
                                rf.lock(name);
                                lockTimes.add(System.currentTimeMillis());
                                LockSupport.parkNanos(100L);
                                rf.unlock(name);
                                name = null;
                                break;
                            } catch (JournalException e) {
                                if (!(e instanceof RetryLockException)) {
                                    e.printStackTrace();
                                    errors.incrementAndGet();
                                    break;
                                }
                            }
                        }
                    }
                } catch (Exception e) {
                    e.printStackTrace();
                    errors.incrementAndGet();
                }
                halt.countDown();
            }).start();
            new Thread(() -> {
                Rnd rnd = new Rnd();
                workerTimes.add(System.currentTimeMillis());
                for (int i = 0; i < iterations; i++) {
                    JournalMetadata<?> metadata = meta[rnd.nextPositiveInt() % readerCount];
                    try (Journal<?> ignored = rf.reader(metadata)) {
                        if (metadata == meta[readerCount - 1] && barrier.getNumberWaiting() > 0) {
                            barrier.await();
                        }
                        LockSupport.parkNanos(10L);
                    } catch (JournalLockedException ignored) {
                    } catch (Exception e) {
                        e.printStackTrace();
                        errors.incrementAndGet();
                    }
                }
                workerTimes.add(System.currentTimeMillis());
                halt.countDown();
            }).start();
            halt.await();
            Assert.assertEquals(0, errors.get());
            // check that there are lock times between worker times
            int count = 0;
            // ensure that we have worker times
            Assert.assertEquals(2, workerTimes.size());
            long lo = workerTimes.get(0);
            long hi = workerTimes.get(1);
            Assert.assertTrue(lockTimes.size() > 0);
            for (int i = 0, n = lockTimes.size(); i < n; i++) {
                long t = lockTimes.getQuick(i);
                if (t > lo && t < hi) {
                    count++;
                }
            }
            Assert.assertTrue(count > 0);
        }
    } catch (Throwable e) {
        e.printStackTrace();
    }
}

Example 65 with JournalStructure

use of com.questdb.store.factory.configuration.JournalStructure in project questdb by bluestreak01.

the class CachingWriterFactoryTest method testTwoThreadsRaceToAllocate.

@Test
public void testTwoThreadsRaceToAllocate() throws Exception {
    final JournalMetadata<?> m = new JournalStructure("x").$date("ts").$().build();
    int n = 2;
    final CyclicBarrier barrier = new CyclicBarrier(n);
    final CountDownLatch halt = new CountDownLatch(n);
    final AtomicInteger errors = new AtomicInteger();
    final AtomicInteger writerCount = new AtomicInteger();
    for (int i = 0; i < n; i++) {
        new Thread(() -> {
            try {
                barrier.await();
                try (JournalWriter ignored = wf.writer(m)) {
                    writerCount.incrementAndGet();
                } catch (WriterBusyException ignored) {
                }
            } catch (Exception e) {
                e.printStackTrace();
                errors.incrementAndGet();
            } finally {
                halt.countDown();
            }
        }).start();
    }
    halt.await();
    // this check is unreliable on slow build servers
    // it is very often the case that there are limited number of cores
    // available and threads execute sequentially rather than
    // simultaneously. We should check that none of the threads
    // receive error.
    // Assert.assertEquals(1, writerCount.get());
    Assert.assertEquals(0, errors.get());
    Assert.assertEquals(1, wf.countFreeWriters());
}