package org.infinispan.distribution.rehash;
import static org.testng.AssertJUnit.assertEquals;
import static org.testng.AssertJUnit.assertFalse;
import static org.testng.AssertJUnit.assertTrue;
import java.util.concurrent.Callable;
import java.util.concurrent.ConcurrentMap;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import org.infinispan.Cache;
import org.infinispan.commons.util.CollectionFactory;
import org.infinispan.configuration.cache.CacheMode;
import org.infinispan.configuration.cache.ConfigurationBuilder;
import org.infinispan.test.MultipleCacheManagersTest;
import org.infinispan.test.fwk.CleanupAfterMethod;
import org.infinispan.transaction.TransactionMode;
import org.infinispan.util.concurrent.locks.LockManager;
import org.testng.annotations.Test;
/**
* Tests data loss during state transfer when the originator of a put operation becomes the primary owner of the
* modified key. See https://issues.jboss.org/browse/ISPN-3357
*
* @author Dan Berindei
*/
@Test(groups = "functional", testName = "distribution.rehash.NonTxPutIfAbsentDuringJoinStressTest")
@CleanupAfterMethod
public class NonTxPutIfAbsentDuringJoinStressTest extends MultipleCacheManagersTest {
private static final int NUM_WRITERS = 4;
private static final int NUM_ORIGINATORS = 2;
private static final int NUM_KEYS = 100;
private final ConcurrentMap<String, String> insertedValues = CollectionFactory.makeConcurrentMap();
private volatile boolean stop = false;
@Override
protected void createCacheManagers() throws Throwable {
ConfigurationBuilder c = getConfigurationBuilder();
addClusterEnabledCacheManager(c);
addClusterEnabledCacheManager(c);
waitForClusterToForm();
}
private ConfigurationBuilder getConfigurationBuilder() {
ConfigurationBuilder c = new ConfigurationBuilder();
c.clustering().cacheMode(CacheMode.DIST_SYNC);
c.transaction().transactionMode(TransactionMode.NON_TRANSACTIONAL);
return c;
}
@Test(groups = "unstable", description = "See ISPN-3918")
public void testNodeJoiningDuringPutIfAbsent() throws Exception {
Future[] futures = new Future[NUM_WRITERS];
for (int i = 0; i < NUM_WRITERS; i++) {
final int writerIndex = i;
futures[i] = fork(new Callable() {
@Override
public Object call() throws Exception {
while (!stop) {
for (int j = 0; j < NUM_KEYS; j++) {
Cache<Object, Object> cache = cache(writerIndex % NUM_ORIGINATORS);
String key = "key_" + j;
String value = "value_" + j + "_" + writerIndex;
Object oldValue = cache.putIfAbsent(key, value);
Object newValue = cache.get(key);
if (oldValue == null) {
// succeeded
log.tracef("Successfully inserted value %s for key %s", value, key);
assertEquals(value, newValue);
boolean isFirst = insertedValues.putIfAbsent(key, value) == null;
assertTrue("A second putIfAbsent succeeded for " + key, isFirst);
} else {
// failed
assertEquals(oldValue, newValue);
}
}
}
return null;
}
});
}
addClusterEnabledCacheManager(getConfigurationBuilder());
waitForClusterToForm();
addClusterEnabledCacheManager(getConfigurationBuilder());
waitForClusterToForm();
stop = true;
for (int i = 0; i < NUM_WRITERS; i++) {
futures[i].get(10, TimeUnit.SECONDS);
for (int j = 0; j < NUM_KEYS; j++) {
for (int k = 0; k < caches().size(); k++) {
String key = "key_" + j;
assertEquals(insertedValues.get(key), cache(k).get(key));
}
}
}
for (int i = 0; i < caches().size(); i++) {
LockManager lockManager = advancedCache(i).getLockManager();
assertEquals(0, lockManager.getNumberOfLocksHeld());
for (int j = 0; j < NUM_KEYS; j++) {
String key = "key_" + j;
assertFalse(lockManager.isLocked(key));
}
}
}
}