| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.ignite.internal.processors.cache.distributed; |
| |
| import java.util.HashSet; |
| import java.util.Iterator; |
| import java.util.Set; |
| import java.util.concurrent.Callable; |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.atomic.AtomicReference; |
| import java.util.concurrent.locks.Lock; |
| import javax.cache.Cache; |
| import org.apache.ignite.Ignite; |
| import org.apache.ignite.IgniteCache; |
| import org.apache.ignite.cache.CacheMode; |
| import org.apache.ignite.cache.affinity.Affinity; |
| import org.apache.ignite.configuration.CacheConfiguration; |
| import org.apache.ignite.configuration.IgniteConfiguration; |
| import org.apache.ignite.internal.IgniteInternalFuture; |
| import org.apache.ignite.testframework.GridTestThread; |
| import org.apache.ignite.testframework.GridTestUtils; |
| import org.apache.ignite.testframework.MvccFeatureChecker; |
| import org.apache.ignite.testframework.junits.common.GridCommonAbstractTest; |
| import org.jetbrains.annotations.Nullable; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| import static org.apache.ignite.cache.CacheAtomicityMode.TRANSACTIONAL; |
| import static org.apache.ignite.cache.CacheRebalanceMode.SYNC; |
| import static org.apache.ignite.cache.CacheWriteSynchronizationMode.FULL_ASYNC; |
| |
| /** |
| * Test cases for multi-threaded tests. |
| */ |
| public abstract class GridCacheLockAbstractTest extends GridCommonAbstractTest { |
| /** Grid1. */ |
| private static Ignite ignite1; |
| |
| /** Grid2. */ |
| private static Ignite ignite2; |
| |
| /** (for convenience). */ |
| private static IgniteCache<Integer, String> cache1; |
| |
| /** (for convenience). */ |
| private static IgniteCache<Integer, String> cache2; |
| |
| /** */ |
| @Before |
| public void beforeGridCacheLockAbstractTest() { |
| MvccFeatureChecker.skipIfNotSupported(MvccFeatureChecker.Feature.ENTRY_LOCK); |
| } |
| |
| /** |
| * |
| */ |
| protected GridCacheLockAbstractTest() { |
| super(false /*start grid. */); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override protected IgniteConfiguration getConfiguration(String igniteInstanceName) throws Exception { |
| IgniteConfiguration cfg = super.getConfiguration(igniteInstanceName); |
| |
| cfg.setCacheConfiguration(cacheConfiguration()); |
| |
| return cfg; |
| } |
| |
| /** |
| * @return Cache configuration. |
| */ |
| protected CacheConfiguration cacheConfiguration() { |
| MvccFeatureChecker.skipIfNotSupported(MvccFeatureChecker.Feature.ENTRY_LOCK); |
| |
| CacheConfiguration cacheCfg = defaultCacheConfiguration(); |
| |
| cacheCfg.setCacheMode(cacheMode()); |
| cacheCfg.setWriteSynchronizationMode(FULL_ASYNC); |
| cacheCfg.setRebalanceMode(SYNC); |
| cacheCfg.setAtomicityMode(TRANSACTIONAL); |
| |
| return cacheCfg; |
| } |
| |
| /** |
| * @return Cache mode. |
| */ |
| protected abstract CacheMode cacheMode(); |
| |
| /** {@inheritDoc} */ |
| @Override protected void beforeTestsStarted() throws Exception { |
| ignite1 = startGrid(1); |
| ignite2 = startGrid(2); |
| |
| cache1 = ignite1.cache(DEFAULT_CACHE_NAME); |
| cache2 = ignite2.cache(DEFAULT_CACHE_NAME); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override protected void afterTestsStopped() throws Exception { |
| super.afterTestsStopped(); |
| |
| ignite1 = null; |
| ignite2 = null; |
| |
| cache1 = null; |
| cache2 = null; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override protected void afterTest() throws Exception { |
| super.afterTest(); |
| |
| info("Executing afterTest() callback..."); |
| |
| info("Before 1st removeAll()."); |
| |
| cache1.clear(); |
| cache1.removeAll(); |
| |
| // Fix for tests where mapping was removed at primary node |
| // but was not removed at others. |
| // removeAll() removes mapping only when it presents at a primary node. |
| // To remove all mappings used force remove by key. |
| if (cache1.size() > 0) { |
| Iterator<Cache.Entry<Integer, String>> it = cache1.iterator(); |
| while (it.hasNext()) |
| cache1.remove(it.next().getKey()); |
| } |
| |
| info("Before 2nd removeAll()."); |
| |
| cache2.clear(); |
| cache2.removeAll(); |
| |
| // Fix for tests where mapping was removed at primary node |
| // but was not removed at others. |
| // removeAll() removes mapping only when it presents at a primary node. |
| // To remove all mappings used force remove by key. |
| if (cache2.size() > 0) { |
| Iterator<Cache.Entry<Integer, String>> it = cache2.iterator(); |
| while (it.hasNext()) |
| cache2.remove(it.next().getKey()); |
| } |
| |
| assert cache1.size() == 0 : "Cache is not empty: " + cache1; |
| assert cache2.size() == 0 : "Cache is not empty: " + cache2; |
| } |
| |
| /** |
| * @return Partitioned flag. |
| */ |
| protected boolean isPartitioned() { |
| return false; |
| } |
| |
| /** |
| * @param k Key to check. |
| * @param idx Grid index. |
| * @return {@code True} if locked. |
| */ |
| private boolean locked(Integer k, int idx) { |
| if (isPartitioned()) |
| return near(idx).isLockedNearOnly(k); |
| |
| return jcache(idx).isLocalLocked(k, false); |
| } |
| |
| /** |
| * @param keys Keys to check. |
| * @param idx Grid index. |
| * @return {@code True} if locked. |
| */ |
| private boolean locked(Iterable<Integer> keys, int idx) { |
| if (isPartitioned()) |
| return near(idx).isAllLockedNearOnly(keys); |
| |
| for (Integer key : keys) { |
| if (!jcache(idx).isLocalLocked(key, true)) |
| return false; |
| } |
| |
| return true; |
| } |
| |
| /** |
| * @throws Exception If test failed. |
| */ |
| @SuppressWarnings({"TooBroadScope"}) |
| @Test |
| public void testLockSingleThread() throws Exception { |
| int k = 1; |
| String v = String.valueOf(k); |
| |
| info("Before lock for key: " + k); |
| |
| Lock lock = cache1.lock(k); |
| |
| lock.lock(); |
| |
| info("After lock for key: " + k); |
| |
| try { |
| assert cache1.isLocalLocked(k, false); |
| assert cache1.isLocalLocked(k, true); |
| |
| // Put to cache. |
| cache1.put(k, v); |
| |
| info("Put " + k + '=' + k + " key pair into cache."); |
| } |
| finally { |
| lock.unlock(); |
| |
| info("Unlocked key: " + k); |
| } |
| |
| assert !locked(k, 1); |
| assert !cache1.isLocalLocked(k, true); |
| } |
| |
| /** |
| * @throws Exception If test failed. |
| */ |
| @Test |
| public void testLock() throws Exception { |
| final int kv = 1; |
| |
| final CountDownLatch l1 = new CountDownLatch(1); |
| final CountDownLatch l2 = new CountDownLatch(1); |
| |
| final Lock lock = cache1.lock(kv); |
| |
| GridTestThread t1 = new GridTestThread(new Callable<Object>() { |
| @Nullable @Override public Object call() throws Exception { |
| info("Before lock for key: " + kv); |
| |
| lock.lock(); |
| |
| info("After lock for key: " + kv); |
| |
| try { |
| assert cache1.isLocalLocked(kv, false); |
| assert cache1.isLocalLocked(kv, true); |
| |
| l1.countDown(); |
| |
| info("Let thread2 proceed."); |
| |
| cache1.put(kv, Integer.toString(kv)); |
| |
| info("Put " + kv + '=' + Integer.toString(kv) + " key pair into cache."); |
| } |
| finally { |
| Thread.sleep(1000); |
| |
| lock.unlock(); |
| |
| info("Unlocked key in thread 1: " + kv); |
| } |
| |
| l2.await(); |
| |
| assert !cache1.isLocalLocked(kv, true); |
| assert !locked(kv, 1); |
| |
| return null; |
| } |
| }); |
| |
| GridTestThread t2 = new GridTestThread(new Callable<Object>() { |
| @Nullable @Override public Object call() throws Exception { |
| info("Waiting for latch1..."); |
| |
| l1.await(); |
| |
| lock.lock(); |
| |
| try { |
| String v = cache2.get(kv); |
| |
| assert v != null : "Value is null for key: " + kv; |
| |
| assertEquals(Integer.toString(kv), v); |
| } |
| finally { |
| lock.unlock(); |
| |
| info("Unlocked key in thread 2: " + kv); |
| } |
| |
| assert !locked(kv, 2); |
| assert !cache2.isLocalLocked(kv, true); |
| |
| Thread.sleep(1000); |
| |
| l2.countDown(); |
| |
| return null; |
| } |
| }); |
| |
| t1.start(); |
| t2.start(); |
| |
| t1.join(); |
| t2.join(); |
| |
| t1.checkError(); |
| t2.checkError(); |
| } |
| |
| /** |
| * @throws Exception If test failed. |
| */ |
| @Test |
| public void testLockAndPut() throws Exception { |
| final CountDownLatch l1 = new CountDownLatch(1); |
| final CountDownLatch l2 = new CountDownLatch(1); |
| |
| GridTestThread t1 = new GridTestThread(new Callable<Object>() { |
| @Nullable @Override public Object call() throws Exception { |
| Lock lock = cache1.lock(1); |
| |
| lock.lock(); |
| |
| info("Locked cache key: 1"); |
| |
| try { |
| assert cache1.isLocalLocked(1, false); |
| assert cache1.isLocalLocked(1, true); |
| |
| info("Verified that cache key is locked: 1"); |
| |
| cache1.put(1, "1"); |
| |
| info("Put key value pair into cache: 1='1'"); |
| |
| l1.countDown(); |
| |
| info("Released latch1"); |
| |
| // Hold lock for a bit. |
| Thread.sleep(50); |
| |
| info("Woke up from sleep."); |
| } |
| finally { |
| lock.unlock(); |
| |
| info("Unlocked cache key: 1"); |
| } |
| |
| l2.await(); |
| |
| assert !locked(1, 1); |
| assert !cache1.isLocalLocked(1, true); |
| |
| return null; |
| } |
| }); |
| |
| GridTestThread t2 = new GridTestThread(new Callable<Object>() { |
| @Nullable @Override public Object call() throws Exception { |
| info("Beginning to await on latch 1"); |
| |
| l1.await(); |
| |
| info("Finished awaiting on latch 1"); |
| |
| assertEquals("1", cache1.get(1)); |
| |
| info("Retrieved value from cache for key: 1"); |
| |
| cache1.put(1, "2"); |
| |
| info("Put key-value pair into cache: 1='2'"); |
| |
| assertEquals("2", cache1.getAndRemove(1)); |
| |
| l2.countDown(); |
| |
| info("Removed key from cache: 1"); |
| |
| return null; |
| } |
| }); |
| |
| t1.start(); |
| t2.start(); |
| |
| t1.join(); |
| t2.join(); |
| |
| t1.checkError(); |
| t2.checkError(); |
| } |
| |
| /** |
| * @throws Exception If test failed. |
| */ |
| @Test |
| public void testLockTimeoutTwoThreads() throws Exception { |
| int keyCnt = 1; |
| |
| final Set<Integer> keys = new HashSet<>(); |
| |
| for (int i = 1; i <= keyCnt; i++) |
| keys.add(i); |
| |
| final CountDownLatch l1 = new CountDownLatch(1); |
| final CountDownLatch l2 = new CountDownLatch(1); |
| |
| IgniteInternalFuture<?> fut1 = GridTestUtils.runMultiThreadedAsync(new Callable<Object>() { |
| @Nullable @Override public Object call() throws Exception { |
| info("Before lock for keys."); |
| |
| Lock lock = cache1.lockAll(keys); |
| |
| lock.lock(); |
| |
| info("After lock for keys."); |
| |
| try { |
| for (Integer key : keys) { |
| assert cache1.isLocalLocked(key, false); |
| assert cache1.isLocalLocked(key, true); |
| } |
| |
| l1.countDown(); |
| |
| info("Let thread2 proceed."); |
| |
| for (int i : keys) { |
| info("Before put key: " + i); |
| |
| cache1.put(i, Integer.toString(i)); |
| |
| if (i % 50 == 0) |
| info("Stored key pairs in cache: " + i); |
| } |
| } |
| finally { |
| l2.await(); |
| |
| info("Before unlock keys in thread 1: " + keys); |
| |
| lock.unlock(); |
| |
| info("Unlocked entry for keys."); |
| } |
| |
| assert !locked(keys, 1); |
| |
| return null; |
| } |
| }, 1, "TEST-THREAD-1"); |
| |
| IgniteInternalFuture<?> fut2 = GridTestUtils.runMultiThreadedAsync(new Callable<Object>() { |
| @Nullable @Override public Object call() throws Exception { |
| info("Waiting for latch1..."); |
| |
| try { |
| l1.await(); |
| |
| // This call should not acquire the lock since |
| // other thread is holding it. |
| assert !cache1.lockAll(keys).tryLock(); |
| |
| info("Before unlock keys in thread 2: " + keys); |
| |
| GridTestUtils.assertThrows(null, new Callable<Object>() { |
| @Override public Object call() throws Exception { |
| cache1.lockAll(keys).unlock(); |
| return null; |
| } |
| }, IllegalStateException.class, null); |
| |
| // The keys should still be locked. |
| for (Integer key : keys) |
| assert cache1.isLocalLocked(key, false); |
| } |
| finally { |
| l2.countDown(); |
| } |
| |
| return null; |
| } |
| }, 1, "TEST-THREAD-2"); |
| |
| fut1.get(); |
| fut2.get(); |
| } |
| |
| /** |
| * @throws Throwable If failed. |
| */ |
| @Test |
| public void testLockReentrancy() throws Throwable { |
| /** |
| * awaitPartitionMapExchange is needed, otherwise deadlock is possible: |
| * main thread acquires lock and starts and wait for new thread while lock is acquired. |
| * New thread tries to get lock, at this moment exchanges starts and new thread |
| * waits for it. But exchange is not able to finish since there is acquired lock. |
| */ |
| awaitPartitionMapExchange(); |
| |
| Affinity<Integer> aff = ignite1.affinity(DEFAULT_CACHE_NAME); |
| |
| for (int i = 10; i < 100; i++) { |
| log.info("Test lock [key=" + i + |
| ", primary=" + aff.isPrimary(ignite1.cluster().localNode(), i) + |
| ", backup=" + aff.isBackup(ignite1.cluster().localNode(), i) + ']'); |
| |
| final int i0 = i; |
| |
| final Lock lock = cache1.lock(i); |
| |
| lock.lockInterruptibly(); |
| |
| try { |
| final AtomicReference<Throwable> err = new AtomicReference<>(); |
| |
| Thread t = new Thread(new Runnable() { |
| @Override public void run() { |
| try { |
| assert !lock.tryLock(); |
| assert !lock.tryLock(100, TimeUnit.MILLISECONDS); |
| |
| assert !cache1.lock(i0).tryLock(); |
| assert !cache1.lock(i0).tryLock(100, TimeUnit.MILLISECONDS); |
| } |
| catch (Throwable e) { |
| err.set(e); |
| } |
| } |
| }); |
| |
| t.start(); |
| t.join(); |
| |
| if (err.get() != null) |
| throw err.get(); |
| |
| lock.lock(); |
| lock.unlock(); |
| |
| t = new Thread(new Runnable() { |
| @Override public void run() { |
| try { |
| assert !lock.tryLock(); |
| assert !lock.tryLock(100, TimeUnit.MILLISECONDS); |
| |
| assert !cache1.lock(i0).tryLock(); |
| assert !cache1.lock(i0).tryLock(100, TimeUnit.MILLISECONDS); |
| } |
| catch (Throwable e) { |
| err.set(e); |
| } |
| } |
| }); |
| |
| t.start(); |
| t.join(); |
| |
| if (err.get() != null) |
| throw err.get(); |
| } |
| finally { |
| lock.unlock(); |
| } |
| |
| GridTestUtils.runAsync(new Runnable() { |
| @Override public void run() { |
| assertTrue(lock.tryLock()); |
| |
| lock.unlock(); |
| } |
| }, "lock-thread"); |
| } |
| } |
| } |