package org.infinispan.statetransfer;
import static org.testng.AssertJUnit.assertEquals;
import static org.testng.AssertJUnit.assertNotNull;
import static org.testng.AssertJUnit.assertNull;
import static org.testng.AssertJUnit.assertTrue;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicInteger;
import org.infinispan.Cache;
import org.infinispan.commands.VisitableCommand;
import org.infinispan.commands.write.PutKeyValueCommand;
import org.infinispan.configuration.cache.CacheMode;
import org.infinispan.configuration.cache.ConfigurationBuilder;
import org.infinispan.container.DataContainer;
import org.infinispan.container.entries.InternalCacheEntry;
import org.infinispan.context.InvocationContext;
import org.infinispan.context.impl.FlagBitSets;
import org.infinispan.distribution.ch.ConsistentHash;
import org.infinispan.interceptors.base.CommandInterceptor;
import org.infinispan.interceptors.impl.InvocationContextInterceptor;
import org.infinispan.test.MultipleCacheManagersTest;
import org.infinispan.test.fwk.CleanupAfterMethod;
import org.infinispan.topology.CacheTopology;
import org.infinispan.transaction.LockingMode;
import org.infinispan.transaction.TransactionMode;
import org.infinispan.transaction.lookup.EmbeddedTransactionManagerLookup;
import org.testng.annotations.Test;
/**
* Tests that config option StateTransferConfiguration.awaitInitialTransfer() is honored correctly.
*
* @author anistor@redhat.com
* @since 5.2
*/
@Test(groups = "functional", testName = "statetransfer.InitialStateTransferCompletionTest")
@CleanupAfterMethod
public class InitialStateTransferCompletionTest extends MultipleCacheManagersTest {
private ConfigurationBuilder cacheConfigBuilder;
@Override
protected void createCacheManagers() throws Throwable {
cacheConfigBuilder = getDefaultClusteredCacheConfig(CacheMode.DIST_SYNC, true, true);
cacheConfigBuilder.transaction().transactionMode(TransactionMode.TRANSACTIONAL)
.transactionManagerLookup(new EmbeddedTransactionManagerLookup())
.lockingMode(LockingMode.PESSIMISTIC)
.clustering().hash().numOwners(10) // a number bigger than actual number of nodes will make this distributed cluster behave as if fully replicated
.stateTransfer().fetchInMemoryState(true)
.awaitInitialTransfer(true); // setting this to false will lead to test failure
createCluster(cacheConfigBuilder, 2);
waitForClusterToForm();
}
public void testStateTransferCompletion() throws Exception {
final int numKeys = 100;
// populate cache
Cache<Object, Object> cache0 = cache(0);
for (int i = 0; i < numKeys; i++) {
cache0.put("k" + i, "v" + i);
}
final AtomicBoolean ignoreFurtherStateTransfer = new AtomicBoolean();
final AtomicInteger transferredKeys = new AtomicInteger();
cacheConfigBuilder.customInterceptors().addInterceptor().before(InvocationContextInterceptor.class).interceptor(new CommandInterceptor() {
@Override
protected Object handleDefault(InvocationContext ctx, VisitableCommand cmd) throws Throwable {
if (cmd instanceof PutKeyValueCommand &&
((PutKeyValueCommand) cmd).hasAnyFlag(FlagBitSets.PUT_FOR_STATE_TRANSFER)) {
if (ignoreFurtherStateTransfer.get()) {
return null;
}
Object result = super.handleDefault(ctx, cmd);
transferredKeys.incrementAndGet();
return result;
}
return super.handleDefault(ctx, cmd);
}
});
// add the third member
log.trace("Adding new member ...");
addClusterEnabledCacheManager(cacheConfigBuilder);
Cache<String, String> cache2 = cache(2); //this must return only when all state was received
ignoreFurtherStateTransfer.set(true);
log.trace("Successfully added a new member");
// check number of transferred keys
int actualTransferredKeys = transferredKeys.get();
assertEquals(numKeys, actualTransferredKeys);
// check the current topology
CacheTopology cacheTopology = cache2.getAdvancedCache().getComponentRegistry().getStateTransferManager().getCacheTopology();
assertNull(cacheTopology.getPendingCH());
ConsistentHash readCh = cacheTopology.getReadConsistentHash();
assertTrue(readCh.getMembers().contains(address(2)));
// check number of keys directly in data container
DataContainer dc2 = cache(2).getAdvancedCache().getDataContainer();
assertEquals(numKeys, dc2.size());
// check the expected values of these keys
for (int i = 0; i < numKeys; i++) {
String key = "k" + i;
String expectedValue = "v" + i;
assertTrue(readCh.isKeyLocalToNode(address(2), key));
InternalCacheEntry entry = dc2.get(key);
assertNotNull(entry);
assertEquals(expectedValue, entry.getValue());
}
}
}