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| <div class="section"> |
| <h1 id="building"> |
| 10. Building a JMS Point-to-Point Test Plan<a class="sectionlink" href="#building" title="Link to here">¶</a> |
| </h1> |
| |
| <div class="clear"></div> |
| <div class="note"> |
| Make sure the required jar files are in JMeter's <span class="code">lib</span> directory. If they are not, shutdown JMeter, |
| copy the jar files over and restart JMeter. |
| See <a href="get-started.html#libraries_activemq">Getting Started</a> for details. |
| |
| </div> |
| <div class="clear"></div> |
| |
| <p> |
| In this section, you will learn how to create a |
| <a href="build-test-plan.html">Test Plan</a> to test a JMS Point-to-Point messaging solution. |
| The setup of the test is 1 threadgroup with 5 threads sending 4 messages each through a request queue. |
| A fixed reply queue will be used for monitoring the reply messages. |
| To construct the Test Plan, you will use the |
| following elements: |
| <a href="test_plan.html#thread_group">Thread Group</a>, |
| <a href="../usermanual/component_reference.html#JMS_Point-to-Point">JMS Point-to-Point</a>, and |
| <a href="../usermanual/component_reference.html#Graph_Results">Graph Results</a>. |
| |
| </p> |
| |
| <p> |
| General notes on JMS: There are currently two JMS samplers. One uses JMS topics |
| and the other uses queues. Topic messages are commonly known as pub/sub messaging. |
| Topic messaging is generally used in cases where a message is published by a producer and |
| consumed by multiple subscribers. A JMS sampler needs the JMS implementation jar files; |
| for example, from Apache ActiveMQ. See <a href="get-started.html#libraries_activemq">here</a> for the list |
| of jars provided by ActiveMQ. |
| </p> |
| |
| </div> |
| <div class="section"> |
| <h1 id="adding_threadgroup"> |
| 10.1 Adding a Thread Group<a class="sectionlink" href="#adding_threadgroup" title="Link to here">¶</a> |
| </h1> |
| |
| <p> |
| The first step you want to do with every JMeter Test Plan is to add a |
| <a href="test_plan.html#thread_group">Thread Group</a> element. The Thread Group tells |
| JMeter the number of users you want to simulate, how often the users should send |
| requests, and the how many requests they should send. |
| |
| </p> |
| |
| <p> |
| Go ahead and add the ThreadGroup element by first selecting the Test Plan, |
| clicking your right mouse button to get the <span class="menuchoice"><span class="guimenuitem">Add</span></span> menu, and then select |
| <span class="menuchoice"><span class="guimenuitem">Add</span> → <span class="guimenuitem">ThreadGroup</span></span>. |
| </p> |
| |
| <p>You should now see the Thread Group element under Test Plan. If you do not |
| see the element, then "expand" the Test Plan tree by clicking on the |
| Test Plan element.</p> |
| |
| <p>Next, you need to modify the default properties. Select the Thread Group element |
| in the tree, if you have not already selected it. You should now see the Thread |
| Group Control Panel in the right section of the JMeter window (see Figure 10.1 |
| below)</p> |
| |
| <figure> |
| <a href="../images/screenshots/webtest/threadgroup.png"><img src="../images/screenshots/webtest/threadgroup.png" width="" height="" alt=" |
| Figure 10.1. Thread Group with Default Values"></a> |
| <figcaption> |
| Figure 10.1. Thread Group with Default Values</figcaption> |
| </figure> |
| |
| <p> |
| Start by providing a more descriptive name for our Thread Group. In the name |
| field, enter <span class="code">Point-to-Point</span>. |
| </p> |
| |
| <p> |
| Next, increase the number of users (called threads) to <span class="code">5</span>. |
| </p> |
| |
| <p>In the next field, the Ramp-Up Period, leave set the value to 0 |
| seconds. This property tells JMeter how long to delay between starting each |
| user. For example, if you enter a Ramp-Up Period of 5 seconds, JMeter will |
| finish starting all of your users by the end of the 5 seconds. So, if we have |
| 5 users and a 5 second Ramp-Up Period, then the delay between starting users |
| would be 1 second (5 users / 5 seconds = 1 user per second). If you set the |
| value to 0, then JMeter will immediately start all of your users.</p> |
| |
| <p> |
| Clear the checkbox labeled "<span class="code">Forever</span>", and enter a value of <span class="code">4</span> in the Loop |
| Count field. This property tells JMeter how many times to repeat your test. |
| If you enter a loop count value of <span class="code">0</span>, then JMeter will run your test only |
| once. To have JMeter repeatedly run your Test Plan, select the <span class="code">Forever</span> |
| checkbox. |
| </p> |
| |
| <div class="clear"></div> |
| <div class="note">In most applications, you have to manually accept |
| changes you make in a Control Panel. However, in JMeter, the Control Panel |
| automatically accepts your changes as you make them. If you change the |
| name of an element, the tree will be updated with the new text after you |
| leave the Control Panel (for example, when selecting another tree element).</div> |
| <div class="clear"></div> |
| |
| </div> |
| <div class="section"> |
| <h1 id="adding_point_to_point_sampler"> |
| 10.2 Adding JMS Point-to-Point Sampler<a class="sectionlink" href="#adding_point_to_point_sampler" title="Link to here">¶</a> |
| </h1> |
| |
| <p> |
| Start by adding the sampler <a href="../usermanual/component_reference.html#JMS_Point-to-Point">JMS Point-to-Point</a> |
| to the Point-to-Point element |
| (<span class="menuchoice"><span class="guimenuitem">Add</span> → <span class="guimenuitem">Sampler</span> → <span class="guimenuitem">JMS Point-to-Point</span></span>). |
| Then, select the JMS Point-to-Point sampler element in the tree. |
| In building the example a configuration will be provided that works with ActiveMQ 3.0. |
| |
| </p> |
| |
| <p> |
| |
| <table> |
| |
| <thead></thead> |
| |
| <tr> |
| <th>Name</th> |
| <th>Value</th> |
| <th>Description</th> |
| |
| </tr> |
| |
| <tbody></tbody> |
| |
| <tr> |
| <th colspan="3">JMS Resources</th> |
| |
| </tr> |
| |
| <tr> |
| <td colspan="1">QueueConnectionFactory</td> |
| <td><span class="code">ConnectionFactory</span></td> |
| <td> This is the default JNDI entry for the connection factory within ActiveMQ.</td> |
| |
| </tr> |
| |
| <tr> |
| <td>JNDI Name Request Queue</td> |
| <td><span class="code">Q.REQ</span></td> |
| <td>This is equal to the JNDI name defined in the JNDI properties.</td> |
| |
| </tr> |
| |
| <tr> |
| <td>JNDI Name Reply Queue</td> |
| <td><span class="code">Q.RPL</span></td> |
| <td>This is equal to the JNDI name defined in the JNDI properties.</td> |
| |
| </tr> |
| |
| <tr> |
| <th colspan="3">Message Properties</th> |
| |
| </tr> |
| |
| <tr> |
| <td colspan="1">Communication Style</td> |
| <td><span class="code">Request Response</span></td> |
| <td>This means that you need at least a service running outside of JMeter and that will respond to the requests. |
| This service must listen to the Request Queue and send messages to the queue referenced by the <span class="code">message.getJMSReplyTo()</span></td> |
| |
| </tr> |
| |
| <tr> |
| <td>Content</td> |
| <td><span class="code">test</span></td> |
| <td>This is just the content of the message.</td> |
| |
| </tr> |
| |
| <tr> |
| <td>JMS Properties</td> |
| <td></td> |
| <td>Nothing needed for ActiveMQ.</td> |
| |
| </tr> |
| |
| <tr> |
| <th colspan="3">JNDI Properties</th> |
| |
| </tr> |
| |
| <tr> |
| <td colspan="1">InitialContextFactory</td> |
| <td><span class="code">org.apache.activemq.jndi.ActiveMQInitialContextFactory</span></td> |
| <td>The standard InitialContextFactory for ActiveMQ</td> |
| |
| </tr> |
| |
| <tr> |
| <th colspan="3"> Properties</th> |
| |
| </tr> |
| |
| <tr> |
| <td colspan="1"><span class="code">queue.Q.REQ</span></td> |
| <td><span class="code">example.A</span></td> |
| <td>This defines a JNDI name <span class="code">Q.REQ</span> for the request queue that points to the queue <span class="code">example.A</span></td> |
| |
| </tr> |
| |
| <tr> |
| <td colspan="1"><span class="code">queue.Q.RPL</span></td> |
| <td><span class="code">example.B</span></td> |
| <td>This defines a JNDI name <span class="code">Q.RPL</span> for the reply queue that points to the queue <span class="code">example.B</span></td> |
| |
| </tr> |
| |
| <tr> |
| <th colspan="3">Provider URL</th> |
| |
| </tr> |
| |
| <tr> |
| <td colspan="1">Provider URL</td> |
| <td><span class="code">tcp://localhost:61616</span></td> |
| <td>This defines the URL of the ActiveMQ messaging system.</td> |
| |
| </tr> |
| |
| </table> |
| |
| </p> |
| |
| </div> |
| <div class="section"> |
| <h1 id="adding_listener"> |
| 10.3 Adding a Listener to View Store the Test Results<a class="sectionlink" href="#adding_listener" title="Link to here">¶</a> |
| </h1> |
| |
| <p> |
| The final element you need to add to your Test Plan is a |
| <a href="component_reference.html#listeners">Listener</a>. This element is |
| responsible for storing all of the results of your JMS requests in a file and presenting |
| a visual model of the data. |
| |
| </p> |
| |
| <p> |
| Select the Thread Group element and add a |
| <a href="../usermanual/component_reference.html#Graph_Results">Graph Results</a> listener |
| (<span class="menuchoice"><span class="guimenuitem">Add</span> → <span class="guimenuitem">Listener</span> → <span class="guimenuitem">Graph Results</span></span>). Next, you need to specify a directory and filename of the |
| output file. You can either type it into the filename field, or select the |
| Browse button and browse to a directory and then enter a filename. |
| |
| </p> |
| |
| <figure> |
| <a href="../images/screenshots/graph_results.png"><img src="../images/screenshots/graph_results.png" width="915" height="686" alt=" |
| Figure 10.2. Graph Results Listener"></a> |
| <figcaption> |
| Figure 10.2. Graph Results Listener</figcaption> |
| </figure> |
| |
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