| /* |
| * 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.concurrent.Callable; |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.ThreadLocalRandom; |
| import java.util.concurrent.atomic.AtomicBoolean; |
| import java.util.concurrent.atomic.AtomicInteger; |
| import org.apache.ignite.Ignite; |
| import org.apache.ignite.IgniteCache; |
| import org.apache.ignite.IgniteCheckedException; |
| import org.apache.ignite.IgniteSystemProperties; |
| import org.apache.ignite.cache.affinity.Affinity; |
| import org.apache.ignite.cache.affinity.rendezvous.RendezvousAffinityFunction; |
| import org.apache.ignite.cluster.ClusterNode; |
| import org.apache.ignite.configuration.CacheConfiguration; |
| import org.apache.ignite.configuration.IgniteConfiguration; |
| import org.apache.ignite.internal.IgniteEx; |
| import org.apache.ignite.internal.IgniteInternalFuture; |
| import org.apache.ignite.internal.processors.affinity.AffinityTopologyVersion; |
| import org.apache.ignite.internal.util.typedef.G; |
| import org.apache.ignite.spi.discovery.tcp.TcpDiscoverySpi; |
| import org.apache.ignite.testframework.GridTestUtils; |
| import org.apache.ignite.testframework.junits.WithSystemProperty; |
| import org.apache.ignite.testframework.junits.common.GridCommonAbstractTest; |
| import org.junit.Test; |
| |
| import static java.util.concurrent.TimeUnit.MILLISECONDS; |
| import static org.apache.ignite.cache.CacheAtomicityMode.TRANSACTIONAL; |
| import static org.apache.ignite.cache.CacheMode.PARTITIONED; |
| import static org.apache.ignite.cache.CacheWriteSynchronizationMode.FULL_SYNC; |
| |
| /** |
| * Test for customer scenario. |
| */ |
| public class IgniteCacheClientReconnectTest extends GridCommonAbstractTest { |
| /** */ |
| private static final int SRV_CNT = 3; |
| |
| /** */ |
| private static final int CLIENTS_CNT = 3; |
| |
| /** */ |
| private static final int CACHES = 10; |
| |
| /** */ |
| private static final int PARTITIONS_CNT = 32; |
| |
| /** */ |
| private static final long TEST_TIME = 60_000; |
| |
| /** */ |
| private boolean forceServerMode; |
| |
| /** {@inheritDoc} */ |
| @Override protected IgniteConfiguration getConfiguration(String igniteInstanceName) throws Exception { |
| IgniteConfiguration cfg = super.getConfiguration(igniteInstanceName); |
| |
| cfg.setPeerClassLoadingEnabled(false); |
| |
| if (!cfg.isClientMode()) { |
| CacheConfiguration[] ccfgs = new CacheConfiguration[CACHES]; |
| |
| for (int i = 0; i < CACHES; i++) { |
| CacheConfiguration ccfg = new CacheConfiguration(); |
| |
| ccfg.setCacheMode(PARTITIONED); |
| ccfg.setAtomicityMode(TRANSACTIONAL); |
| ccfg.setBackups(1); |
| ccfg.setName("cache-" + i); |
| ccfg.setWriteSynchronizationMode(FULL_SYNC); |
| ccfg.setAffinity(new RendezvousAffinityFunction(PARTITIONS_CNT, null)); |
| |
| ccfgs[i] = ccfg; |
| } |
| |
| cfg.setCacheConfiguration(ccfgs); |
| } |
| else |
| ((TcpDiscoverySpi)cfg.getDiscoverySpi()).setForceServerMode(forceServerMode); |
| |
| return cfg; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override protected long getTestTimeout() { |
| return TEST_TIME + 60_000; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override protected void afterTest() throws Exception { |
| stopAllGrids(); |
| } |
| |
| /** |
| * If setting IGNITE_EXCHANGE_HISTORY_SIZE is set to small value |
| * it is possible that bunch of clients simultaneous start (amount > IGNITE_EXCHANGE_HISTORY_SIZE) |
| * may result in ExchangeFuture for some client being flushed from exchange history. |
| * |
| * In that case client attempts to reconnect until success. |
| * |
| * After that it should get correct information about topology version and affinity distribution. |
| * |
| * @throws Exception If failed |
| */ |
| @Test |
| @WithSystemProperty(key = IgniteSystemProperties.IGNITE_EXCHANGE_HISTORY_SIZE, value = "1") |
| public void testClientReconnectOnExchangeHistoryExhaustion() throws Exception { |
| startGrids(SRV_CNT); |
| |
| startClientGridsMultiThreaded(SRV_CNT, CLIENTS_CNT); |
| |
| waitForTopology(SRV_CNT + CLIENTS_CNT); |
| |
| awaitPartitionMapExchange(); |
| |
| verifyPartitionToNodeMappings(); |
| |
| verifyAffinityTopologyVersions(); |
| |
| verifyCacheOperationsOnClients(); |
| } |
| |
| /** |
| * Verifies that in case of exchange history exhaustion |
| * (refer to javadoc at {@link #testClientReconnectOnExchangeHistoryExhaustion()} for more info about it) |
| * clients with forceServerMode=true flag don't try to reconnect to the cluster and stop. |
| * |
| * @throws Exception If failed |
| */ |
| @Test |
| @WithSystemProperty(key = IgniteSystemProperties.IGNITE_EXCHANGE_HISTORY_SIZE, value = "1") |
| public void testClientInForceServerModeStopsOnExchangeHistoryExhaustion() throws Exception { |
| startGrids(SRV_CNT); |
| |
| forceServerMode = true; |
| |
| int clientNodes = 24; |
| |
| try { |
| startClientGridsMultiThreaded(SRV_CNT, clientNodes); |
| } |
| catch (IgniteCheckedException e) { |
| //Ignored: it is expected to get exception here |
| } |
| |
| awaitPartitionMapExchange(); |
| |
| int topSize = G.allGrids().size(); |
| |
| assertTrue("Actual size: " + topSize, topSize < SRV_CNT + clientNodes); |
| } |
| |
| /** |
| * Verifies basic cache operations from all clients. |
| */ |
| private void verifyCacheOperationsOnClients() { |
| for (int i = SRV_CNT; i < SRV_CNT + CLIENTS_CNT; i++) { |
| IgniteEx cl = grid(i); |
| |
| if (!forceServerMode) |
| assertTrue(cl.localNode().isClient()); |
| |
| for (int j = 0; j < CACHES; j++) { |
| IgniteCache<Object, Object> cache = cl.cache("cache-" + j); |
| |
| String keyPrefix = "cl-" + i + "_key-"; |
| |
| for (int k = 0; k < 1_000; k++) |
| cache.put(keyPrefix + k, "val-" + k); |
| |
| for (int k = 999; k >= 0; k--) |
| assertEquals("val-" + k, cache.get(keyPrefix + k)); |
| } |
| } |
| } |
| |
| /** |
| * Verifies that affinity mappings are the same on clients and servers. |
| */ |
| private void verifyPartitionToNodeMappings() { |
| IgniteEx refSrv = grid(0); |
| String cacheName; |
| |
| for (int i = 0; i < CACHES; i++) { |
| cacheName = "cache-" + i; |
| |
| Affinity<Object> refAffinity = refSrv.affinity(cacheName); |
| |
| for (int j = 0; j < PARTITIONS_CNT; j++) { |
| ClusterNode refAffNode = refAffinity.mapPartitionToNode(j); |
| |
| assertNotNull("Affinity node for " + j + " partition is null", refAffNode); |
| |
| for (int k = SRV_CNT; k < SRV_CNT + CLIENTS_CNT; k++) { |
| ClusterNode clAffNode = grid(k).affinity(cacheName).mapPartitionToNode(j); |
| |
| assertNotNull("Affinity node for " + k + " client and " + j + " partition is null", clAffNode); |
| |
| assertEquals("Affinity node for " |
| + k |
| + " client and " |
| + j |
| + " partition is different on client", |
| refAffNode.id(), |
| clAffNode.id()); |
| } |
| } |
| } |
| } |
| |
| /** |
| * Verifies {@link AffinityTopologyVersion}s: one obtained from coordinator and all from each client node. |
| */ |
| private void verifyAffinityTopologyVersions() { |
| IgniteEx srv = grid(0); |
| |
| AffinityTopologyVersion srvTopVer = srv.context().discovery().topologyVersionEx(); |
| |
| for (int i = SRV_CNT; i < SRV_CNT + CLIENTS_CNT; i++) { |
| AffinityTopologyVersion clntTopVer = grid(i).context().discovery().topologyVersionEx(); |
| |
| assertTrue(clntTopVer.equals(srvTopVer)); |
| } |
| } |
| |
| /** |
| * @throws Exception If failed. |
| */ |
| @Test |
| public void testClientReconnect() throws Exception { |
| startGrids(SRV_CNT); |
| |
| final AtomicBoolean stop = new AtomicBoolean(false); |
| |
| final AtomicInteger idx = new AtomicInteger(SRV_CNT); |
| |
| final CountDownLatch latch = new CountDownLatch(2); |
| |
| IgniteInternalFuture<?> fut = GridTestUtils.runMultiThreadedAsync(new Callable<Void>() { |
| @Override public Void call() throws Exception { |
| Ignite ignite = startClientGrid(idx.getAndIncrement()); |
| |
| latch.countDown(); |
| |
| assertTrue(ignite.cluster().localNode().isClient()); |
| |
| while (!stop.get()) |
| putGet(ignite); |
| |
| return null; |
| } |
| }, 2, "client-thread"); |
| |
| try { |
| assertTrue(latch.await(10_000, MILLISECONDS)); |
| |
| long end = System.currentTimeMillis() + TEST_TIME; |
| |
| int clientIdx = idx.getAndIncrement(); |
| |
| int cnt = 0; |
| |
| while (System.currentTimeMillis() < end) { |
| log.info("Iteration: " + cnt++); |
| |
| try (Ignite ignite = startClientGrid(clientIdx)) { |
| assertTrue(ignite.cluster().localNode().isClient()); |
| |
| assertEquals(6, ignite.cluster().nodes().size()); |
| |
| putGet(ignite); |
| } |
| } |
| |
| stop.set(true); |
| |
| fut.get(); |
| } |
| finally { |
| stop.set(true); |
| } |
| } |
| |
| /** |
| * @param ignite Ignite. |
| */ |
| private void putGet(Ignite ignite) { |
| ThreadLocalRandom rnd = ThreadLocalRandom.current(); |
| |
| for (int i = 0; i < CACHES; i++) { |
| IgniteCache<Object, Object> cache = ignite.cache("cache-" + i); |
| |
| assertNotNull(cache); |
| |
| Integer key = rnd.nextInt(0, 100_000); |
| |
| cache.put(key, key); |
| |
| assertEquals(key, cache.get(key)); |
| } |
| } |
| } |