| /* |
| * 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; |
| |
| import java.util.Arrays; |
| import java.util.concurrent.atomic.AtomicBoolean; |
| import org.apache.ignite.Ignite; |
| import org.apache.ignite.IgniteCheckedException; |
| import org.apache.ignite.cluster.ClusterNode; |
| import org.apache.ignite.configuration.IgniteConfiguration; |
| import org.apache.ignite.internal.util.nio.GridCommunicationClient; |
| import org.apache.ignite.internal.util.typedef.internal.U; |
| import org.apache.ignite.testframework.junits.common.GridCommonAbstractTest; |
| import org.junit.Test; |
| |
| /** |
| * Tests client to be able restore connection to cluster on subsequent attempts after communication problems. |
| */ |
| public class IgniteClientConnectAfterCommunicationFailureTest extends GridCommonAbstractTest { |
| /** {@inheritDoc} */ |
| @Override protected void afterTest() throws Exception { |
| stopAllGrids(); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override protected IgniteConfiguration getConfiguration(String gridName) throws Exception { |
| return super.getConfiguration(gridName) |
| .setNetworkTimeout(500) |
| .setCommunicationSpi(new TcpCommunicationSpi(gridName.contains("block"))); |
| } |
| |
| /** |
| * @throws Exception If failed. |
| */ |
| @Test |
| public void testClientReconnects() throws Exception { |
| Ignite srv1 = startGrid("server1"); |
| Ignite srv2 = startGrid("server2"); |
| startClientGrid("client-block"); |
| |
| assertEquals(1, srv2.cluster().forClients().nodes().size()); |
| assertEquals(1, srv1.cluster().forClients().nodes().size()); |
| } |
| |
| /** |
| * @throws Exception If failed. |
| */ |
| @Test |
| public void testClientThreadsSuspended() throws Exception { |
| Ignite srv1 = startGrid("server1"); |
| Ignite srv2 = startGrid("server2"); |
| Ignite client = startClientGrid("client"); |
| |
| boolean blockedAnything = false; |
| |
| for (Thread thread : Thread.getAllStackTraces().keySet()) { |
| if (thread.getName().contains("%client%")) { |
| thread.suspend(); |
| blockedAnything = true; |
| } |
| } |
| |
| Thread.sleep(10000); |
| |
| for (Thread thread : Thread.getAllStackTraces().keySet()) { |
| if (thread.getName().contains("%client%")) |
| thread.resume(); |
| } |
| |
| for (int j = 0; j < 10; j++) { |
| boolean topOk = true; |
| |
| for (Ignite node : Arrays.asList(srv1, srv2, client)) { |
| if (node.cluster().nodes().size() != 3) { |
| U.warn(log, "Grid size is incorrect (will re-run check in 1000 ms) " + |
| "[name=" + node.name() + ", size=" + node.cluster().nodes().size() + ']'); |
| |
| topOk = false; |
| |
| break; |
| } |
| } |
| |
| if (topOk) |
| return; |
| else |
| Thread.sleep(1000); |
| } |
| |
| assertTrue(blockedAnything); |
| assertEquals(1, srv2.cluster().forClients().nodes().size()); |
| assertEquals(1, srv1.cluster().forClients().nodes().size()); |
| } |
| |
| /** |
| * Will never connect with the first node id, normal operation after. |
| */ |
| private class TcpCommunicationSpi extends org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi { |
| /** |
| * Whether this instance should actually block. |
| */ |
| private final AtomicBoolean isBlocking; |
| |
| /** |
| * |
| * @param isBlocking Whether this instance should actually block. |
| */ |
| public TcpCommunicationSpi(boolean isBlocking) { |
| this.isBlocking = new AtomicBoolean(isBlocking); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override protected GridCommunicationClient createTcpClient(ClusterNode node, int connIdx) |
| throws IgniteCheckedException { |
| if (blockHandshakeOnce()) |
| throw new IgniteCheckedException("Node is blocked"); |
| |
| return super.createTcpClient(node, connIdx); |
| } |
| |
| /** Check if this connection is blocked. */ |
| private boolean blockHandshakeOnce() { |
| return isBlocking.compareAndSet(true, false); |
| } |
| } |
| } |