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Introduction

QMan is a Management bridge that exposes one (or several) Qpid broker domain model as MBeans that are accessible through the Java Management Extensions (JMX).

How to run QMan

Prerequisites

QMan is a standalone application that is packaged as qpid-management-client-incubating-M3.jar. To run QMan you need to add the following jars in your CLASSPATH:

  • log4j-1.2.12.jar
  • slf4j-api-1.4.0.jar
  • slf4j-log4j12-1.4.0.jar
  • commons-pool-1.4.jar
  • commons-codec-1.3.jar
  • commons-lang-2.2.jar
  • commons-collections-3.2.jar
  • commons-configuration-1.2.jar
  • qpid-client-incubating-Mx.jar (were x is the current qpid version)
  • qpid-common-incubating-Mx.jar (were x is the current qpid version)

alternatively you can run the following script (that add all the qpid jars to the CLASSPATH):
> CLASSPATH=`find <lib-root> -name '*.jar' | tr '\n' ":"`
Where <lib-root> is the directory containing the qpid jars (when qpid is built from source <lib-root> is equal to qpid/java/build/lib)

QMan can be connected at run time against any broker. However if you wish to automatically connect to one or several brokers you can do so by providing a configuration file as follows: 

<configuration>	
  <brokers>
	<broker>
	  <host>localhost</host>
	  <port>5672</port>
	  <virtual-host>test</virtual-host>
	  <user>guest</user>
	  <password>guest</password>
	  <max-pool-capacity>4</max-pool-capacity>
	  <initial-pool-capacity>0</initial-pool-capacity>
	  <max-wait-timeout>-1</max-wait-timeout>
	</broker>
        <broker>
	  <host>myhost</host>
	  <port>5672</port>
	  <virtual-host>test</virtual-host>
	  <user>guest</user>
	  <password>guest</password>
	  <max-pool-capacity>4</max-pool-capacity>
	  <initial-pool-capacity>0</initial-pool-capacity>
	  <max-wait-timeout>-1</max-wait-timeout>
	</broker>
  </brokers>
</configuration>

The configuration above specifies that QMan should connect to two brokers, one on localhos and one on myhost, both listening on port 5672.

The configuration file to use is specified through the JVM parameter "qman-config" that must point onto a valid configuration file.

Running QMan

To run QMan in a console run the following command:

java org.apache.qpid.management.domain.services.QMan

Messages similar to those should be displayed:

... [org.apache.qpid.management.domain.services.QMan] <QMAN-000001> : Starting Q-Man...
...
Type "q" to quit.

if you wish to use a configuration file <home>/myconfiguration.xml so QMan establishes a connection with one or several brokers, run the following command: 

java -Dqman-config="<home>/myconfiguration.xml" org.apache.qpid.management.domain.services.QMan

Stopping QMan

Type "q" In the console from which QMan has been started.

Browsing Manageable Beams

The jconsole tool (JMX-compliant graphical tool for monitoring a Java virtual machine) can be used for monitoring and QMan Mbeans. for more information see http://java.sun.com/javase/6/docs/technotes/guides/management/jconsole.html

The jconsole executable can be found in JDK_HOME/bin, where JDK_HOME is the directory in which the JDK software is installed. If this directory is in your system path, you can start JConsole by simply typing jconsole in a console. Otherwise, you have to type the full path to the executable file.

As jconsole needs to perform operations invocation you will need to add the QMan jar in jconsole classpath. In a console type: 

jconsole -J-Djava.class.path=$CLASSPATH:$JAVA_HOME/lib/jconsole.jar:$JAVA_HOME/lib/tools.jar

Where CLASSPATH contains the QMan jars and JAVA_HOME point on your JDK home.

As demonstrated on the following screen shot, once jconsole is running select the MBeans tab and select the Q-MAN set of MBeans.

 

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