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| <!DOCTYPE document |
| [ |
| <!ENTITY sect-num '11'> |
| ]> |
| <document prev="build-jms-point-to-point-test-plan.html" next="build-programmatic-test-plan.html" id="$Id$"> |
| |
| <properties> |
| <title>User's Manual: Building a JMS (Java Messaging Service) Test Plan</title> |
| </properties> |
| |
| <body> |
| |
| <section name="§-num;. Building a JMS Topic Test Plan" anchor="building"> |
| <note> |
| JMS requires some optional jars to be downloaded. Please refer to <a href="get-started.html">Getting Started</a> for full details. |
| </note> |
| <p>In this section, you will learn how to create a |
| <a href="build-test-plan.html">Test Plan</a> to test JMS Providers. You will |
| create five subscribers and one publisher. You will create 2 thread groups and set |
| each one to 10 iterations. The total messages is (6 threads) x (1 message) x |
| (repeat 10 times) = 60 messages. To construct the Test Plan, you will use the |
| following elements: |
| <a href="test_plan.html#thread_group">Thread Group</a>, |
| <complink name="JMS Publisher"/>, |
| <complink name="JMS Subscriber"/>, and |
| <complink name="Graph Results"/>.</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. Queue messaging is generally used for transactions |
| where the sender expects a response. Messaging systems are quite different from |
| normal HTTP requests. In HTTP, a single user sends a request and gets a response. |
| Messaging system can work in synchronous and asynchronous mode. 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> |
| |
| </section> |
| |
| <section name="§-num;.1 Adding Users" anchor="adding_users"> |
| <p>The first step is 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 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 <menuchoice><guimenuitem>Add</guimenuitem></menuchoice> menu, and then select |
| <menuchoice><guimenuitem>Add</guimenuitem><guimenuitem>ThreadGroup</guimenuitem></menuchoice>.</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 §-num;.1 |
| below)</p> |
| |
| <figure image="webtest/threadgroup.png"> |
| Figure §-num;.1. Thread Group with Default Values</figure> |
| |
| <p>Start by providing a more descriptive name for our Thread Group. In the name |
| field, enter <code>Subscribers</code>.</p> |
| |
| <p>Next, increase the number of users (called threads) to <code>5</code>.</p> |
| |
| <p>In the next field, the Ramp-Up Period, set the value to <code>0</code> |
| 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, JMeter will immediately start all users.</p> |
| |
| <p>Clear the checkbox labeled "<code>Forever</code>", and enter a value of <code>10</code> in the Loop |
| Count field. This property tells JMeter how many times to repeat your test. |
| If you enter a loop count value of <code>0</code>, then JMeter will run your test only |
| once. To have JMeter repeatedly run your Test Plan, select the <code>Forever</code> |
| checkbox.</p> |
| |
| <p>Repeat the process and add another thread group. For the second thread |
| group, enter "<code>Publisher</code>" in the name field, set the number of threads to <code>1</code>, |
| and set the iteration to <code>10</code>. |
| </p> |
| |
| <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).</note> |
| |
| |
| </section> |
| |
| <section name="§-num;.2 Adding JMS Subscriber and Publisher" anchor="adding_subscriber_publisher"> |
| |
| <p>Make sure the required jar files are in JMeter's <code>lib</code> directory. If they are |
| not, shutdown JMeter, copy the jar files over and restart JMeter.</p> |
| |
| <p>Start by adding the sampler <complink name="JMS Subscriber"/> |
| to the Subscribers element |
| (<menuchoice> |
| <guimenuitem>Add</guimenuitem> |
| <guimenuitem>Sampler</guimenuitem> |
| <guimenuitem>JMS Subscriber</guimenuitem> |
| </menuchoice>). |
| Then, select the JMS Subscriber element in the tree and edit the following properties: |
| |
| <ol> |
| <li>Change the Name field to "<code>Sample Subscriber</code>"</li> |
| <li>If the JMS provider uses the <code>jndi.properties</code> file, check the box</li> |
| <li>Enter the name of the InitialContextFactory class. For example, with ActiveMQ 5.4, the value is "<code>org.apache.activemq.jndi.ActiveMQInitialContextFactory</code>"</li> |
| <li>Enter the provider URL. This is the URL for the JNDI server, if there is one. For example, with ActiveMQ 5.4 on local machine with default port, the value is "<code>tcp://localhost:61616</code>"</li> |
| <li>Enter the name of the connection factory. Please refer to the documentation |
| of the JMS provider for the information. For ActiveMQ, the default is "<code>ConnectionFactory</code>"</li> |
| <li>Enter the name of the message topic. For ActiveMQ Dynamic Topics (create topics dynamically), example value is "<code>dynamicTopics/MyStaticTopic1</code>" |
| <note>Note: Setup at startup mean that JMeter starting to listen on the Destination at beginning of test without name change possibility. |
| Setup on Each sample mean that JMeter (re)starting to listen before run each JMS Subscriber sample, |
| this last option permit to have Destination name with some JMeter variables |
| </note></li> |
| <li>If the JMS provider requires authentication, check "<code>required</code>" and enter the |
| username and password. For example, Orion JMS requires authentication, while ActiveMQ |
| and MQSeries does not</li> |
| <li>Enter <code>10</code> in "<code>Number of samples to aggregate</code>". For performance reasons, the sampler |
| will aggregate messages, since small messages will arrive very quickly. If the sampler |
| didn't aggregate the messages, JMeter wouldn't be able to keep up.</li> |
| <li>If you want to read the response, check the box</li> |
| <li>There are two client implementations for subscribers. If the JMS provider |
| exhibits zombie threads with one client, try the other.</li> |
| </ol> |
| </p> |
| |
| <figure width="718" height="526" image="jms/jms_sub.png"> |
| Figure §-num;.2. JMS Subscriber</figure> |
| |
| <p>Next add the sampler <complink name="JMS Publisher"/> |
| to the Publisher element |
| (<menuchoice> |
| <guimenuitem>Add</guimenuitem> |
| <guimenuitem>Sampler</guimenuitem> |
| <guimenuitem>JMS Publisher</guimenuitem> |
| </menuchoice>). |
| Then, select the JMS Publisher element in the tree and edit the following properties: |
| </p> |
| |
| <ol> |
| <li>Change the Name field to "<code>Sample Publisher</code>".</li> |
| <li>If the JMS provider uses the <code>jndi.properties</code> file, check the box</li> |
| <li>Enter the name of the InitialContextFactory class. For example, with ActiveMQ 5.4, the value is "<code>org.apache.activemq.jndi.ActiveMQInitialContextFactory</code>"</li> |
| <li>Enter the provider URL. This is the URL for the JNDI server, if there is one. For example, with ActiveMQ 5.4 on local machine with default port, the value is "<code>tcp://localhost:61616</code>"</li> |
| <li>Enter the name of the connection factory. Please refer to the documentation |
| of the JMS provider for the information. For ActiveMQ, the default is "<code>ConnectionFactory</code>"</li> |
| <li>Enter the name of the message topic. For ActiveMQ Dynamic Topics (create topics dynamically), example value is "<code>dynamicTopics/MyStaticTopic1</code>". |
| <note>Note: Setup at startup mean that JMeter starting connection with the Destination at beginning of test without name change possibility. |
| Setup on Each sample mean that JMeter (re)starting the connection before run each JMS Publisher sample, |
| this last option permit to have Destination name with some JMeter variables |
| </note></li> |
| <li>If the JMS provider requires authentication, check "<code>required</code>" and enter the |
| username and password. For example, Orion JMS requires authentication, while ActiveMQ |
| and MQSeries does not</li> |
| <li>Enter <code>10</code> in "<code>Number of samples to aggregate</code>". For performance reasons, the sampler |
| will aggregate messages, since small messages will arrive very quickly. If the sampler |
| didn't aggregate the messages, JMeter wouldn't be able to keep up.</li> |
| <li>Select the appropriate configuration for getting the message to publish. If you |
| want the sampler to randomly select the message, place the messages in a directory |
| and select the directory using browse.</li> |
| <li>Select the message type. If the message is in object format or map message, make sure the |
| message is generated correctly.</li> |
| </ol> |
| <p></p> |
| <figure width="720" height="652" image="jms/jms_pub.png"> |
| Figure §-num;.3. JMS Publisher</figure> |
| |
| |
| </section> |
| |
| <section name="§-num;.3 Adding a Listener to View Store the Test Results" anchor="adding_listener"> |
| <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 HTTP requests in a file and presenting |
| a visual model of the data.</p> |
| |
| <p>Select the Test Plan element and add a <complink name="Graph Results"/> listener |
| (<menuchoice> |
| <guimenuitem>Add</guimenuitem> |
| <guimenuitem>Listener</guimenuitem> |
| <guimenuitem>Graph Results</guimenuitem> |
| </menuchoice>). 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 width="915" height="686" image="graph_results.png"> |
| Figure §-num;.4. Graph Results Listener</figure> |
| |
| </section> |
| |
| </body> |
| </document> |