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*
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* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
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*
* This software is distributed in the hope that it will be useful,
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
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package org.infinispan.tx;
import org.infinispan.commands.ReplicableCommand;
import org.infinispan.commands.remote.recovery.TxCompletionNotificationCommand;
import org.infinispan.commands.tx.CommitCommand;
import org.infinispan.configuration.cache.CacheMode;
import org.infinispan.configuration.cache.ConfigurationBuilder;
import org.infinispan.container.DataContainer;
import org.infinispan.remoting.transport.Address;
import org.infinispan.test.MultipleCacheManagersTest;
import org.infinispan.test.TestingUtil;
import org.infinispan.test.fwk.CleanupAfterMethod;
import org.infinispan.transaction.TransactionTable;
import org.infinispan.transaction.lookup.DummyTransactionManagerLookup;
import org.infinispan.util.mocks.ControlledCommandFactory;
import org.testng.annotations.Test;
import java.util.HashSet;
import java.util.Set;
import java.util.concurrent.Callable;
import static org.junit.Assert.*;
/**
* test:
* - N1 starts a tx with 10 keys that map to the second node and prepares it
* - N3 is started and (hopefully) some of the keys touched by the transaction should be migrated over to N3
* - the transaction is finalized. The test makes sure that:
* - no data is lost during ST
* - the transaction is cleaned up correctly from all nodes
*
* @author Mircea Markus
* @since 5.2
*/
@Test (groups = "functional", testName = "tx.LockCleanupStateTransferTest")
@CleanupAfterMethod
public class LockCleanupStateTransferTest extends MultipleCacheManagersTest {
private static final int KEY_SET_SIZE = 10;
private ConfigurationBuilder dcc;
@Override
protected void createCacheManagers() throws Throwable {
dcc = getDefaultClusteredCacheConfig(CacheMode.DIST_SYNC, true);
dcc.transaction().transactionManagerLookup(new DummyTransactionManagerLookup());
dcc.clustering().hash().numOwners(1);
dcc.clustering().stateTransfer().fetchInMemoryState(true);
createCluster(dcc, 2);
waitForClusterToForm();
}
public void testBelatedCommit() throws Throwable {
testLockReleasedCorrectly(CommitCommand.class);
}
public void testBelatedTxCompletionNotificationCommand() throws Throwable {
testLockReleasedCorrectly(TxCompletionNotificationCommand.class);
}
private void testLockReleasedCorrectly(Class<? extends ReplicableCommand> toBlock ) throws Throwable {
final ControlledCommandFactory ccf = ControlledCommandFactory.registerControlledCommandFactory(advancedCache(1), toBlock);
ccf.gate.close();
final Set<Object> keys = new HashSet<Object>(KEY_SET_SIZE);
//fork it into another test as this is going to block in commit
fork(new Callable<Object>() {
@Override
public Object call() throws Exception {
tm(0).begin();
for (int i = 0; i < KEY_SET_SIZE; i++) {
Object k = getKeyForCache(1);
keys.add(k);
cache(0).put(k, k);
}
tm(0).commit();
return null;
}
});
//now wait for all the commits to block
eventually(new Condition() {
@Override
public boolean isSatisfied() throws Exception {
log.tracef("receivedCommands == %s", ccf.blockTypeCommandsReceived.get());
return ccf.blockTypeCommandsReceived.get() == 1;
}
});
if (toBlock == TxCompletionNotificationCommand.class) {
//at this stage everything should be committed locally
DataContainer dc = advancedCache(1).getDataContainer();
for (Object k : keys) {
assertEquals(k, dc.get(k).getValue());
}
}
log.trace("Before state transfer");
//now add a one new member
addClusterEnabledCacheManager(dcc);
waitForClusterToForm();
log.trace("After state transfer");
final Set<Object> migratedKeys = new HashSet<Object>(KEY_SET_SIZE);
for (Object key : keys) {
if (keyMapsToNode(key, 2)) {
migratedKeys.add(key);
}
}
log.tracef("Number of migrated keys is %s", migratedKeys.size());
if (migratedKeys.size() == 0) return;
eventually(new Condition() {
@Override
public boolean isSatisfied() throws Exception {
int remoteTxCount = TestingUtil.getTransactionTable(cache(2)).getRemoteTxCount();
log.tracef("remoteTxCount=%s", remoteTxCount);
return remoteTxCount == 1;
}
});
log.trace("Releasing the gate");
ccf.gate.open();
eventually(new Condition() {
@Override
public boolean isSatisfied() throws Exception {
int remoteTxCount = TestingUtil.getTransactionTable(cache(2)).getRemoteTxCount();
log.trace("remoteTxCount==" + remoteTxCount);
return remoteTxCount == 0;
}
});
for (int i = 0; i < 3; i++) {
TransactionTable tt = TestingUtil.getTransactionTable(cache(i));
assertEquals("For cache " + i, 0, tt.getLocalTxCount());
assertEquals("For cache " + i, 0, tt.getRemoteTxCount());
}
for (Object key : keys) {
assertNotLocked(key);
assertEquals(key, cache(0).get(key));
}
for (Object k : migratedKeys) {
assertFalse(advancedCache(0).getDataContainer().containsKey(k));
assertFalse(advancedCache(1).getDataContainer().containsKey(k));
assertTrue(advancedCache(2).getDataContainer().containsKey(k));
}
}
private boolean keyMapsToNode(Object key, int nodeIndex) {
Address owner = owner(key);
return owner.equals(address(nodeIndex));
}
private Address owner(Object key) {
return advancedCache(0).getDistributionManager().getConsistentHash().locateOwners(key).get(0);
}
}