package org.infinispan.affinity.impl;
import org.infinispan.Cache;
import org.infinispan.affinity.KeyAffinityServiceFactory;
import org.infinispan.affinity.impl.KeyAffinityServiceImpl;
import org.infinispan.affinity.impl.RndKeyGenerator;
import org.infinispan.distribution.ch.ConsistentHash;
import org.infinispan.manager.EmbeddedCacheManager;
import org.infinispan.remoting.transport.Address;
import org.testng.annotations.Test;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;
import java.util.concurrent.CountDownLatch;
import static junit.framework.Assert.assertEquals;
/**
* @author Mircea.Markus@jboss.com
* @since 4.1
*/
@Test(groups = "functional", testName = "affinity.KeyAffinityServiceTest")
public class KeyAffinityServiceTest extends BaseKeyAffinityServiceTest {
@Override
protected void createCacheManagers() throws Throwable {
super.INIT_CLUSTER_SIZE = 2;
super.createCacheManagers();
assertEquals(2, topology(caches.get(0).getCacheManager()).size());
assertEquals(2, topology(caches.get(1).getCacheManager()).size());
cache(0, cacheName).put("k", "v");
assertEquals("v", cache(0, cacheName).get("k"));
assertEquals("v", cache(1, cacheName).get("k"));
keyAffinityService = (KeyAffinityServiceImpl<Object>) KeyAffinityServiceFactory.newKeyAffinityService(manager(0).getCache(cacheName),
executor, new RndKeyGenerator(), 100);
}
public void testKeysAreCorrectlyCreated() throws Exception {
assertEventualFullCapacity();
assertKeyAffinityCorrectness();
}
@Test (dependsOnMethods = "testKeysAreCorrectlyCreated")
public void testConcurrentConsumptionOfKeys() throws InterruptedException {
List<KeyConsumer> consumers = new ArrayList<KeyConsumer>();
int keysToConsume = 1000;
CountDownLatch consumersStart = new CountDownLatch(1);
for (int i = 0; i < 10; i++) {
consumers.add(new KeyConsumer(keysToConsume, consumersStart));
}
consumersStart.countDown();
for (KeyConsumer kc : consumers) {
kc.join();
}
for (KeyConsumer kc : consumers) {
assertEquals(null, kc.exception);
}
assertCorrectCapacity();
}
@Test (dependsOnMethods = "testConcurrentConsumptionOfKeys")
public void testServerAdded() throws InterruptedException {
EmbeddedCacheManager cm = addClusterEnabledCacheManager();
cm.defineConfiguration(cacheName, configuration.build());
Cache<Object, String> cache = cm.getCache(cacheName);
caches.add(cache);
waitForClusterToResize();
eventually(new Condition() {
@Override
public boolean isSatisfied() throws Exception {
return keyAffinityService.getAddress2KeysMapping().keySet().size() == 3;
}
});
assertEquals(3, keyAffinityService.getAddress2KeysMapping().keySet().size());
assertEventualFullCapacity();
assertKeyAffinityCorrectness();
}
@Test(dependsOnMethods = "testServerAdded")
public void testServersDropped() throws InterruptedException {
caches.get(2).getCacheManager().stop();
caches.remove(2);
waitForClusterToResize();
eventually(new Condition() {
@Override
public boolean isSatisfied() throws Exception {
return keyAffinityService.getAddress2KeysMapping().keySet().size() == 2;
}
});
assertEquals(2, keyAffinityService.getAddress2KeysMapping().keySet().size());
assertEventualFullCapacity();
assertKeyAffinityCorrectness();
}
@Test (dependsOnMethods = "testServersDropped")
public void testCollocatedKey() {
ConsistentHash hash = manager(0).getCache(cacheName).getAdvancedCache().getDistributionManager().getConsistentHash();
for (int i = 0; i < 1000; i++) {
List<Address> addresses = hash.locateOwners(i);
Object collocatedKey = keyAffinityService.getCollocatedKey(i);
List<Address> addressList = hash.locateOwners(collocatedKey);
assertEquals(addresses, addressList);
}
}
public class KeyConsumer extends Thread {
volatile Exception exception;
private final int keysToConsume;
private CountDownLatch consumersStart;
private final List<Address> topology = topology();
private final Random rnd = new Random();
public KeyConsumer(int keysToConsume, CountDownLatch consumersStart) {
super("KeyConsumer");
this.keysToConsume = keysToConsume;
this.consumersStart = consumersStart;
start();
}
@Override
public void run() {
try {
consumersStart.await();
} catch (InterruptedException e) {
e.printStackTrace();
return;
}
for (int i = 0; i < keysToConsume; i++) {
Address whichAddr = topology.get(rnd.nextInt(topology.size()));
try {
Object keyForAddress = keyAffinityService.getKeyForAddress(whichAddr);
assertMapsToAddress(keyForAddress, whichAddr);
} catch (Exception e) {
this.exception = e;
break;
}
}
}
}
}