| /* |
| * 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.openejb.itest.failover; |
| |
| import org.apache.openejb.client.RemoteInitialContextFactory; |
| import org.apache.openejb.itest.failover.ejb.Calculator; |
| import org.apache.openejb.loader.Files; |
| import org.apache.openejb.loader.IO; |
| import org.apache.openejb.loader.Zips; |
| import org.apache.openejb.server.control.StandaloneServer; |
| import org.apache.openejb.util.Duration; |
| import org.apache.openejb.util.NetworkUtil; |
| import org.apache.openejb.util.OpenEjbVersion; |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| import javax.naming.Context; |
| import javax.naming.InitialContext; |
| import java.io.File; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.Properties; |
| import java.util.concurrent.TimeUnit; |
| |
| /** |
| * This test verifies the situation where none of the |
| * servers listed in the 'initialServers' list can be contacted. |
| * |
| * A server that is unable to connect to any of its peers should |
| * continue trying to connect to servers on the 'initialServers' |
| * list. How long to wait between attempts is dictated by the |
| * 'reconnectDelay' setting, which is 30 seconds by default. |
| */ |
| public class ReconnectDelayTest { |
| |
| private static final String MULTIPOINT = "multipoint"; |
| |
| @Test |
| public void test() throws Exception { |
| |
| // To run in an IDE, uncomment and update this line |
| System.setProperty("version", OpenEjbVersion.get().getVersion()); |
| |
| final Duration reconnectDelay = new Duration("1 second"); |
| |
| final File zip = Repository.getArtifact("org.apache.tomee", "openejb-standalone", "zip"); |
| final File app = Repository.getArtifact("org.apache.openejb.itests", "failover-ejb", "jar"); |
| |
| final File dir = Files.tmpdir(); |
| |
| System.setProperty("openejb.client.requestretry", "true"); |
| |
| final Map<String, StandaloneServer> servers = new HashMap<String, StandaloneServer>(); |
| |
| for (final String name : new String[]{"red", "green", "blue"}) { |
| final File home = new File(dir, name); |
| Files.mkdir(home); |
| Zips.unzip(zip, home, true); |
| |
| final StandaloneServer server = new StandaloneServer(home, home); |
| server.killOnExit(); |
| server.ignoreOut(); |
| server.getJvmOpts().add("-Dopenejb.classloader.forced-load=org.apache.openejb"); |
| server.getProperties().put("name", name); |
| server.getProperties().put("openejb.extract.configuration", "false"); |
| |
| IO.copy(app, Files.path(home, "apps", "itest.jar")); |
| IO.copy(IO.read("<openejb><Deployments dir=\"apps/\"/></openejb>"), Files.path(home, "conf", "openejb.xml")); |
| |
| final StandaloneServer.ServerService ejbd = server.getServerService("ejbd"); |
| ejbd.setDisabled(false); |
| ejbd.setBind("0.0.0.0"); |
| ejbd.setPort(getAvailablePort()); |
| ejbd.setThreads(5); |
| ejbd.set("discoveryHost", "localhost"); |
| ejbd.set("discovery", "ejb:ejbd://{discoveryHost}:{port}/" + name); |
| |
| final StandaloneServer.ServerService multipoint = server.getServerService(MULTIPOINT); |
| multipoint.setBind("0.0.0.0"); |
| multipoint.setPort(getAvailablePort()); |
| multipoint.setDisabled(false); |
| multipoint.set("discoveryHost", "localhost"); |
| multipoint.set("discoveryName", name); |
| multipoint.set("reconnectDelay", reconnectDelay.toString()); |
| |
| servers.put(name, server); |
| } |
| |
| final StandaloneServer red = servers.get("red"); |
| |
| // Set all the initialServers to point to RED |
| for (final Map.Entry<String, StandaloneServer> entry : servers.entrySet()) { |
| final StandaloneServer server = entry.getValue(); |
| final StandaloneServer.ServerService multipoint = server.getServerService(MULTIPOINT); |
| multipoint.set("initialServers", "localhost:" + red.getServerService(MULTIPOINT).getPort()); |
| } |
| |
| // Start all the servers except RED |
| for (final Map.Entry<String, StandaloneServer> entry : servers.entrySet()) { |
| if (entry.getKey().equals("red")) continue; |
| entry.getValue().start(1, TimeUnit.MINUTES); |
| } |
| |
| // Verify Failover is not yet functional |
| |
| { |
| // RED was never started so BLUE never found any peers |
| |
| // Lets invoke BLUE then shut it down and verify we have |
| // no other peers to invoke |
| final StandaloneServer blue = servers.get("blue"); |
| final Properties environment = new Properties(); |
| environment.put(Context.INITIAL_CONTEXT_FACTORY, RemoteInitialContextFactory.class.getName()); |
| environment.put(Context.PROVIDER_URL, "ejbd://localhost:" + blue.getServerService("ejbd").getPort()); |
| |
| final InitialContext context = new InitialContext(environment); |
| final Calculator bean = (Calculator) context.lookup("CalculatorBeanRemote"); |
| |
| // Invoke BLUE a few times |
| invoke(bean, 10, "blue"); |
| |
| // Kill BLUE |
| blue.kill(); |
| |
| // Invocations should now fail (and not failover) |
| try { |
| bean.name(); |
| Assert.fail("Server should be down and failover not hooked up"); |
| } catch (final Exception e) { |
| // pass |
| } |
| } |
| |
| // Now we start RED |
| red.start(1, TimeUnit.MINUTES); |
| |
| // Wait for the reconnectDelay so GREEN can find RED |
| Thread.sleep((long) (reconnectDelay.getTime(TimeUnit.MILLISECONDS) * 1.5)); |
| |
| // Verify Failover is now functional |
| |
| { |
| // RED was never started so GREEN never found any peers |
| |
| // Lets invoke GREEN then shut it down and verify we have |
| // no other peers to invoke |
| final StandaloneServer green = servers.get("green"); |
| final Properties environment = new Properties(); |
| environment.put(Context.INITIAL_CONTEXT_FACTORY, RemoteInitialContextFactory.class.getName()); |
| environment.put(Context.PROVIDER_URL, "ejbd://localhost:" + green.getServerService("ejbd").getPort()); |
| |
| final InitialContext context = new InitialContext(environment); |
| final Calculator bean = (Calculator) context.lookup("CalculatorBeanRemote"); |
| |
| |
| // Invoke GREEN a few times |
| invoke(bean, 10, "green"); |
| |
| // Kill GREEN |
| green.kill(); |
| |
| // Invocations should now failover to RED |
| invoke(bean, 10, "red"); |
| } |
| } |
| |
| private long invoke(final Calculator bean, final int max, final String expectedName) { |
| |
| long total = 0; |
| |
| for (int i = 0; i < max; i++) { |
| final long start = System.nanoTime(); |
| final String name = bean.name(); |
| System.out.println(name); |
| Assert.assertEquals(expectedName, name); |
| total += System.nanoTime() - start; |
| } |
| |
| return TimeUnit.NANOSECONDS.toMicros(total / max); |
| } |
| |
| private int getAvailablePort() { |
| return NetworkUtil.getNextAvailablePort(); |
| } |
| } |