@Test
public void testLockConditionSignalAllShutDownKeyOwner() throws InterruptedException {
final TestHazelcastInstanceFactory nodeFactory = createHazelcastInstanceFactory(2);
final Config config = new Config();
final String name = "testLockConditionSignalAllShutDownKeyOwner";
final HazelcastInstance instance = nodeFactory.newHazelcastInstance(config);
final AtomicInteger count = new AtomicInteger(0);
final int size = 50;
int k = 0;
final HazelcastInstance keyOwner = nodeFactory.newHazelcastInstance(config);
while (!keyOwner
.getCluster()
.getLocalMember()
.equals(instance.getPartitionService().getPartition(++k).getOwner())) {
Thread.sleep(10);
}
final ILock lock = instance.getLock(k);
final ICondition condition = lock.newCondition(name);
final CountDownLatch awaitLatch = new CountDownLatch(size);
final CountDownLatch finalLatch = new CountDownLatch(size);
for (int i = 0; i < size; i++) {
new Thread(
new Runnable() {
public void run() {
lock.lock();
try {
awaitLatch.countDown();
condition.await();
Thread.sleep(5);
if (lock.isLockedByCurrentThread()) {
count.incrementAndGet();
}
} catch (InterruptedException ignored) {
} finally {
lock.unlock();
finalLatch.countDown();
}
}
})
.start();
}
final ILock lock1 = keyOwner.getLock(k);
final ICondition condition1 = lock1.newCondition(name);
awaitLatch.await(1, TimeUnit.MINUTES);
lock1.lock();
condition1.signalAll();
lock1.unlock();
keyOwner.getLifecycleService().shutdown();
finalLatch.await(2, TimeUnit.MINUTES);
Assert.assertEquals(size, count.get());
}
@Test
public void testIsLocked2() throws Exception {
final TestHazelcastInstanceFactory nodeFactory = createHazelcastInstanceFactory(2);
final Config config = new Config();
final HazelcastInstance instance1 = nodeFactory.newHazelcastInstance(config);
final HazelcastInstance instance2 = nodeFactory.newHazelcastInstance(config);
final int key = new Random().nextInt();
final ILock lock = instance1.getLock(key);
lock.lock();
assertTrue(lock.isLocked());
assertTrue(lock.isLockedByCurrentThread());
assertTrue(lock.tryLock());
assertTrue(lock.isLocked());
assertTrue(lock.isLockedByCurrentThread());
final AtomicBoolean result = new AtomicBoolean();
final Thread thread =
new Thread() {
public void run() {
result.set(lock.isLockedByCurrentThread());
}
};
thread.start();
thread.join();
assertFalse(result.get());
lock.unlock();
assertTrue(lock.isLocked());
assertTrue(lock.isLockedByCurrentThread());
}
@Test
public void testLockCount() throws Exception {
final TestHazelcastInstanceFactory nodeFactory = createHazelcastInstanceFactory(2);
final Config config = new Config();
final HazelcastInstance instance1 = nodeFactory.newHazelcastInstance(config);
final HazelcastInstance instance2 = nodeFactory.newHazelcastInstance(config);
final int key = new Random().nextInt();
final ILock lock = instance1.getLock(key);
lock.lock();
assertEquals(1, lock.getLockCount());
assertTrue(lock.tryLock());
assertEquals(2, lock.getLockCount());
lock.unlock();
assertEquals(1, lock.getLockCount());
assertTrue(lock.isLocked());
lock.unlock();
assertEquals(0, lock.getLockCount());
assertFalse(lock.isLocked());
assertEquals(-1L, lock.getRemainingLeaseTime());
}
private void testLockEviction(boolean localKey) throws Exception {
final TestHazelcastInstanceFactory nodeFactory = createHazelcastInstanceFactory(2);
final Config config = new Config();
final HazelcastInstance instance1 = nodeFactory.newHazelcastInstance(config);
final HazelcastInstance instance2 = nodeFactory.newHazelcastInstance(config);
warmUpPartitions(instance2, instance1);
final String key;
if (localKey) {
key = generateKeyOwnedBy(instance1);
} else {
key = generateKeyNotOwnedBy(instance1);
}
final ILock lock = instance1.getLock(key);
lock.lock(10, TimeUnit.SECONDS);
assertTrue(lock.getRemainingLeaseTime() > 0);
Assert.assertTrue(lock.isLocked());
final CountDownLatch latch = new CountDownLatch(1);
Thread t =
new Thread(
new Runnable() {
public void run() {
final ILock lock = instance2.getLock(key);
lock.lock();
latch.countDown();
}
});
t.start();
Assert.assertTrue(latch.await(30, TimeUnit.SECONDS));
}
@Test(timeout = 100000)
public void testKeyOwnerDies() throws Exception {
final TestHazelcastInstanceFactory nodeFactory = createHazelcastInstanceFactory(3);
final Config config = new Config();
final HazelcastInstance keyOwner = nodeFactory.newHazelcastInstance(config);
final HazelcastInstance instance1 = nodeFactory.newHazelcastInstance(config);
final HazelcastInstance instance2 = nodeFactory.newHazelcastInstance(config);
warmUpPartitions(keyOwner, instance1, instance2);
final String key = generateKeyOwnedBy(keyOwner);
final ILock lock1 = instance1.getLock(key);
lock1.lock();
final CountDownLatch latch = new CountDownLatch(1);
new Thread(
new Runnable() {
public void run() {
final ILock lock = instance2.getLock(key);
lock.lock();
latch.countDown();
}
})
.start();
Thread.sleep(1000);
keyOwner.getLifecycleService().shutdown();
Assert.assertTrue(lock1.isLocked());
Assert.assertTrue(lock1.isLockedByCurrentThread());
Assert.assertTrue(lock1.tryLock());
lock1.unlock();
lock1.unlock();
Assert.assertTrue(latch.await(10, TimeUnit.SECONDS));
}
@Test(timeout = 100000)
public void testLockOwnerDies() throws Exception {
final TestHazelcastInstanceFactory nodeFactory = createHazelcastInstanceFactory(2);
final Config config = new Config();
final HazelcastInstance lockOwner = nodeFactory.newHazelcastInstance(config);
final HazelcastInstance instance1 = nodeFactory.newHazelcastInstance(config);
final String name = "testLockOwnerDies";
final ILock lock = lockOwner.getLock(name);
lock.lock();
Assert.assertTrue(lock.isLocked());
final CountDownLatch latch = new CountDownLatch(1);
Thread t =
new Thread(
new Runnable() {
public void run() {
final ILock lock = instance1.getLock(name);
lock.lock();
latch.countDown();
}
});
t.start();
lockOwner.getLifecycleService().shutdown();
Assert.assertTrue(latch.await(10, TimeUnit.SECONDS));
}
@Test(expected = IllegalMonitorStateException.class)
public void testIllegalUnlock() {
final TestHazelcastInstanceFactory nodeFactory = createHazelcastInstanceFactory(1);
final HazelcastInstance instance = nodeFactory.newHazelcastInstance(new Config());
final ILock lock = instance.getLock("testIllegalUnlock");
lock.unlock();
}
@SuppressWarnings("LockAcquiredButNotSafelyReleased")
protected void handleLock(String[] args) {
String lockStr = args[0];
String key = args[1];
Lock lock = hazelcast.getLock(key);
if (lockStr.equalsIgnoreCase("lock")) {
lock.lock();
println("true");
} else if (lockStr.equalsIgnoreCase("unlock")) {
lock.unlock();
println("true");
} else if (lockStr.equalsIgnoreCase("trylock")) {
String timeout = args.length > 2 ? args[2] : null;
if (timeout == null) {
println(lock.tryLock());
} else {
long time = Long.valueOf(timeout);
try {
println(lock.tryLock(time, TimeUnit.SECONDS));
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}
@Test(expected = DistributedObjectDestroyedException.class)
public void testDestroyLockWhenOtherWaitingOnLock() throws InterruptedException {
final TestHazelcastInstanceFactory nodeFactory = createHazelcastInstanceFactory(1);
final HazelcastInstance instance = nodeFactory.newHazelcastInstance(new Config());
final ILock lock = instance.getLock("testLockDestroyWhenWaitingLock");
Thread t =
new Thread(
new Runnable() {
public void run() {
lock.lock();
}
});
t.start();
t.join();
new Thread(
new Runnable() {
@Override
public void run() {
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
lock.destroy();
}
})
.start();
lock.lock();
}
@Test
@Category(ProblematicTest.class) // TODO
public void testLockInterruption() throws InterruptedException {
Config config = new Config();
config.setProperty(GroupProperties.PROP_OPERATION_CALL_TIMEOUT_MILLIS, "5000");
final TestHazelcastInstanceFactory nodeFactory = createHazelcastInstanceFactory(1);
final HazelcastInstance hz = nodeFactory.newHazelcastInstance(config);
final Lock lock = hz.getLock("testLockInterruption2");
final CountDownLatch latch = new CountDownLatch(1);
Thread t =
new Thread(
new Runnable() {
public void run() {
try {
lock.tryLock(60, TimeUnit.SECONDS);
} catch (InterruptedException ignored) {
latch.countDown();
}
}
});
lock.lock();
t.start();
Thread.sleep(2000);
t.interrupt();
assertTrue("tryLock() is not interrupted!", latch.await(30, TimeUnit.SECONDS));
lock.unlock();
assertTrue("Could not acquire lock!", lock.tryLock());
}
@Test(expected = HazelcastInstanceNotActiveException.class)
public void testShutDownNodeWhenOtherWaitingOnConditionAwait() throws InterruptedException {
final TestHazelcastInstanceFactory nodeFactory = createHazelcastInstanceFactory(2);
final HazelcastInstance instance = nodeFactory.newHazelcastInstance(new Config());
nodeFactory.newHazelcastInstance(new Config());
final String name = "testShutDownNodeWhenOtherWaitingOnConditionAwait";
final ILock lock = instance.getLock(name);
final ICondition condition = lock.newCondition("s");
final CountDownLatch latch = new CountDownLatch(1);
new Thread(
new Runnable() {
public void run() {
try {
latch.await(1, TimeUnit.MINUTES);
Thread.sleep(5000);
} catch (InterruptedException e) {
e.printStackTrace();
}
instance.getLifecycleService().shutdown();
}
})
.start();
lock.lock();
try {
latch.countDown();
condition.await();
} catch (InterruptedException e) {
}
lock.unlock();
}
@Test(expected = DistributedObjectDestroyedException.class)
public void testDestroyLockWhenOtherWaitingOnConditionAwait() {
final TestHazelcastInstanceFactory nodeFactory = createHazelcastInstanceFactory(2);
final HazelcastInstance instance = nodeFactory.newHazelcastInstance(new Config());
final ILock lock = instance.getLock("testDestroyLockWhenOtherWaitingOnConditionAwait");
final ICondition condition = lock.newCondition("condition");
final CountDownLatch latch = new CountDownLatch(1);
new Thread(
new Runnable() {
public void run() {
try {
latch.await(30, TimeUnit.SECONDS);
Thread.sleep(5000);
} catch (InterruptedException e) {
e.printStackTrace();
}
lock.destroy();
}
})
.start();
lock.lock();
try {
latch.countDown();
condition.await();
} catch (InterruptedException e) {
}
lock.unlock();
}
@Test(expected = IllegalMonitorStateException.class)
public void testIllegalConditionUsage2() {
final TestHazelcastInstanceFactory nodeFactory = createHazelcastInstanceFactory(1);
final HazelcastInstance instance = nodeFactory.newHazelcastInstance(new Config());
final ILock lock = instance.getLock("testIllegalConditionUsage");
final ICondition condition = lock.newCondition("condition");
condition.signal();
}
/** Test for issue #39 */
@Test
public void testIsLocked() throws InterruptedException {
Config config = new Config();
final TestHazelcastInstanceFactory nodeFactory = createHazelcastInstanceFactory(3);
final HazelcastInstance h1 = nodeFactory.newHazelcastInstance(config);
final HazelcastInstance h2 = nodeFactory.newHazelcastInstance(config);
final HazelcastInstance h3 = nodeFactory.newHazelcastInstance(config);
final String key = "testLockIsLocked";
final ILock lock = h1.getLock(key);
final ILock lock2 = h2.getLock(key);
assertFalse(lock.isLocked());
assertFalse(lock2.isLocked());
lock.lock();
assertTrue(lock.isLocked());
assertTrue(lock2.isLocked());
final CountDownLatch latch = new CountDownLatch(1);
final CountDownLatch latch2 = new CountDownLatch(1);
Thread thread =
new Thread(
new Runnable() {
public void run() {
ILock lock3 = h3.getLock(key);
assertTrue(lock3.isLocked());
try {
latch2.countDown();
while (lock3.isLocked()) {
Thread.sleep(100);
}
latch.countDown();
} catch (InterruptedException e) {
throw new RuntimeException(e);
}
}
});
thread.start();
latch2.await(3, TimeUnit.SECONDS);
Thread.sleep(500);
lock.unlock();
assertTrue(latch.await(5, TimeUnit.SECONDS));
}
@Test(expected = IllegalMonitorStateException.class)
public void testIllegalConditionUsage1() {
final TestHazelcastInstanceFactory nodeFactory = createHazelcastInstanceFactory(1);
final HazelcastInstance instance = nodeFactory.newHazelcastInstance(new Config());
final ILock lock = instance.getLock("testIllegalConditionUsage");
final ICondition condition = lock.newCondition("condition");
try {
condition.await();
} catch (InterruptedException e) {
}
}
@Test(timeout = 100000)
public void testKeyOwnerDiesOnCondition() throws Exception {
final TestHazelcastInstanceFactory nodeFactory = createHazelcastInstanceFactory(3);
final Config config = new Config();
final HazelcastInstance keyOwner = nodeFactory.newHazelcastInstance(config);
final HazelcastInstance instance1 = nodeFactory.newHazelcastInstance(config);
final HazelcastInstance instance2 = nodeFactory.newHazelcastInstance(config);
int k = 0;
final AtomicInteger atomicInteger = new AtomicInteger(0);
while (keyOwner
.getCluster()
.getLocalMember()
.equals(instance1.getPartitionService().getPartition(k++).getOwner())) {
Thread.sleep(10);
}
final int key = k;
final ILock lock1 = instance1.getLock(key);
final String name = "testKeyOwnerDiesOnCondition";
final ICondition condition1 = lock1.newCondition(name);
Thread t =
new Thread(
new Runnable() {
public void run() {
final ILock lock = instance2.getLock(key);
final ICondition condition = lock.newCondition(name);
lock.lock();
try {
condition.await();
} catch (InterruptedException e) {
e.printStackTrace();
} finally {
lock.unlock();
}
atomicInteger.incrementAndGet();
}
});
t.start();
Thread.sleep(1000);
lock1.lock();
keyOwner.getLifecycleService().shutdown();
condition1.signal();
lock1.unlock();
Thread.sleep(1000);
t.join();
Assert.assertEquals(1, atomicInteger.get());
}
@Test(timeout = 100000)
public void testScheduledLockActionForDeadMember() throws Exception {
final TestHazelcastInstanceFactory nodeFactory = createHazelcastInstanceFactory(2);
final HazelcastInstance h1 = nodeFactory.newHazelcastInstance(new Config());
final ILock lock1 = h1.getLock("default");
final HazelcastInstance h2 = nodeFactory.newHazelcastInstance(new Config());
final ILock lock2 = h2.getLock("default");
assertTrue(lock1.tryLock());
final AtomicBoolean error = new AtomicBoolean(false);
final Thread thread =
new Thread(
new Runnable() {
public void run() {
try {
lock2.lock();
error.set(true);
} catch (Throwable ignored) {
}
}
});
thread.start();
Thread.sleep(5000);
assertTrue(lock1.isLocked());
h2.getLifecycleService().shutdown();
thread.join(10000);
assertFalse(thread.isAlive());
assertFalse(error.get());
assertTrue(lock1.isLocked());
lock1.unlock();
assertFalse(lock1.isLocked());
assertTrue(lock1.tryLock());
}
private void testShutDownNodeWhenOtherWaitingOnLock(boolean localKey)
throws InterruptedException {
final TestHazelcastInstanceFactory nodeFactory = createHazelcastInstanceFactory(2);
final HazelcastInstance instance = nodeFactory.newHazelcastInstance(new Config());
final HazelcastInstance instance2 = nodeFactory.newHazelcastInstance(new Config());
warmUpPartitions(instance2, instance);
final String key;
if (localKey) {
key = generateKeyOwnedBy(instance);
} else {
key = generateKeyNotOwnedBy(instance);
}
final ILock lock = instance.getLock(key);
final Thread thread =
new Thread(
new Runnable() {
public void run() {
lock.lock();
}
});
thread.start();
thread.join();
new Thread(
new Runnable() {
public void run() {
try {
Thread.sleep(3000);
} catch (InterruptedException e) {
e.printStackTrace();
}
instance.getLifecycleService().shutdown();
}
})
.start();
lock.lock();
}
@Test
public void testSimpleUsage() throws InterruptedException {
final TestHazelcastInstanceFactory nodeFactory = createHazelcastInstanceFactory(1);
final Config config = new Config();
final HazelcastInstance instance = nodeFactory.newHazelcastInstance(config);
final AtomicInteger atomicInteger = new AtomicInteger(0);
final ILock lock = instance.getLock("testSimpleUsage");
Assert.assertEquals("testSimpleUsage", lock.getName());
final Runnable tryLockRunnable =
new Runnable() {
public void run() {
if (lock.tryLock()) atomicInteger.incrementAndGet();
}
};
final Runnable lockRunnable =
new Runnable() {
public void run() {
lock.lock();
}
};
Assert.assertEquals(false, lock.isLocked());
lock.lock();
Assert.assertEquals(true, lock.isLocked());
Assert.assertEquals(true, lock.tryLock());
lock.unlock();
Thread thread1 = new Thread(tryLockRunnable);
thread1.start();
thread1.join();
Assert.assertEquals(0, atomicInteger.get());
lock.unlock();
Thread thread2 = new Thread(tryLockRunnable);
thread2.start();
thread2.join();
Assert.assertEquals(1, atomicInteger.get());
Assert.assertEquals(true, lock.isLocked());
lock.forceUnlock();
Thread thread3 = new Thread(lockRunnable);
thread3.start();
thread3.join();
Assert.assertEquals(true, lock.isLocked());
Assert.assertEquals(false, lock.tryLock(2, TimeUnit.SECONDS));
Thread thread4 = new Thread(lockRunnable);
thread4.start();
assertTrueEventually(
new AssertTask() {
@Override
public void run() {
Assert.assertEquals(true, lock.isLocked());
}
});
lock.forceUnlock();
thread4.join();
}