Author: markt
Date: Fri Nov 1 23:17:16 2013
New Revision: 1538084
URL: http://svn.apache.org/r1538084
Log:
Simple test to see how many outgoing connections can be created on a single
machine.
Added:
tomcat/trunk/test/org/apache/tomcat/websocket/TesterConnectionLimit.java
(with props)
Added: tomcat/trunk/test/org/apache/tomcat/websocket/TesterConnectionLimit.java
URL:
http://svn.apache.org/viewvc/tomcat/trunk/test/org/apache/tomcat/websocket/TesterConnectionLimit.java?rev=1538084&view=auto
==============================================================================
--- tomcat/trunk/test/org/apache/tomcat/websocket/TesterConnectionLimit.java
(added)
+++ tomcat/trunk/test/org/apache/tomcat/websocket/TesterConnectionLimit.java
Fri Nov 1 23:17:16 2013
@@ -0,0 +1,107 @@
+/*
+ * 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.tomcat.websocket;
+
+import java.io.IOException;
+import java.net.URI;
+import java.util.concurrent.atomic.AtomicInteger;
+
+import javax.websocket.ClientEndpointConfig.Builder;
+import javax.websocket.ContainerProvider;
+import javax.websocket.DeploymentException;
+import javax.websocket.WebSocketContainer;
+
+import org.junit.Test;
+
+import org.apache.catalina.Context;
+import org.apache.catalina.servlets.DefaultServlet;
+import org.apache.catalina.startup.Tomcat;
+import org.apache.catalina.startup.TomcatBaseTest;
+import org.apache.tomcat.util.descriptor.web.ApplicationListener;
+import
org.apache.tomcat.websocket.TesterMessageCountClient.TesterProgrammaticEndpoint;
+
+
+public class TesterConnectionLimit extends TomcatBaseTest{
+
+ @Test
+ public void testSingleMachine() throws Exception {
+ Tomcat tomcat = getTomcatInstance();
+ // Must have a real docBase - just use temp
+ Context ctx =
+ tomcat.addContext("", System.getProperty("java.io.tmpdir"));
+ ctx.addApplicationListener(new ApplicationListener(
+ TesterEchoServer.Config.class.getName(), false));
+ Tomcat.addServlet(ctx, "default", new DefaultServlet());
+ ctx.addServletMapping("/", "default");
+
+ tomcat.getConnector().setAttribute("maxConnections", "-1");
+
+ tomcat.start();
+
+ URI uri = new URI("ws://localhost:" + getPort() +
+ TesterEchoServer.Config.PATH_ASYNC);
+ AtomicInteger counter = new AtomicInteger(0);
+
+ int threadCount = 50;
+
+ Thread[] threads = new ConnectionThread[threadCount];
+
+ for (int i = 0; i < threadCount; i++) {
+ threads[i] = new ConnectionThread(counter, uri);
+ threads[i].start();
+ }
+
+ // Wait for the threads to die
+ for (Thread thread : threads) {
+ thread.join();
+ }
+
+ System.out.println("Maximum connection count was " + counter.get());
+ }
+
+ private static class ConnectionThread extends Thread {
+
+ private final AtomicInteger counter;
+ private final URI uri;
+
+ private ConnectionThread(AtomicInteger counter, URI uri) {
+ this.counter = counter;
+ this.uri = uri;
+ }
+
+ @Override
+ public void run() {
+ WebSocketContainer wsContainer =
+ ContainerProvider.getWebSocketContainer();
+
+ int count = 0;
+
+ try {
+ while (true) {
+
wsContainer.connectToServer(TesterProgrammaticEndpoint.class,
+ Builder.create().build(), uri);
+ count = counter.incrementAndGet();
+ if (count % 100 == 0) {
+ System.out.println(count + " and counting...");
+ }
+ }
+ } catch (IOException | DeploymentException ioe) {
+ // Let thread die
+ }
+ }
+ }
+}
Propchange:
tomcat/trunk/test/org/apache/tomcat/websocket/TesterConnectionLimit.java
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