Managing AMQ Broker
For Use with AMQ Broker 7.5
Abstract
Chapter 1. Upgrading Your Broker
1.1. About Upgrades
Red Hat releases new versions of AMQ Broker to the Customer Portal. Update your brokers to the newest version to ensure that you have the latest enhancements and fixes. In general, Red Hat releases a new version of AMQ Broker in one of three ways:
- Major Release
- A major upgrade or migration is required when an application is transitioned from one major release to the next, for example, from AMQ Broker 6 to AMQ Broker 7. This type of upgrade is not addressed in this guide. For instructions on how to upgrade from previous releases of AMQ Broker, see Migrating to Red Hat AMQ 7.
- Minor Release
- AMQ Broker periodically provides minor releases, which are updates that include new features, as well as bug and security fixes. If you plan to upgrade from one AMQ Broker minor release to another, for example, from AMQ Broker 7.0 to AMQ Broker 7.1, code changes should not be required for applications that do not use private, unsupported, or tech preview components.
- Micro Release
- AMQ Broker also periodically provides micro releases that contain minor enhancements and fixes. Micro releases increment the minor release version by the last digit, for example from 7.0.1 to 7.0.2. A micro release should not require code changes, however, some releases may require configuration changes.
1.2. Upgrading a Broker Instance from 7.0.x to 7.0.y
The procedure for upgrading AMQ Broker from one version of 7.0 to another is similar to the one for installation: you download an archive from the Customer Portal and then extract it. The following subsections describe how to upgrade a 7.0.x broker for different operating systems.
1.2.1. Upgrading from 7.0.x to 7.0.y on Linux
The name of the archive that you download could differ from what is used in the following examples.
Prerequisites
Before upgrading AMQ Broker, review the release notes for the target release.
The release notes describe important enhancements, known issues, and changes to behavior in the target release.
For more information, see the AMQ Broker 7.0 Release Notes.
Procedure
- Download the desired archive from the Red Hat Customer Portal by following the instructions provided in Downloading the AMQ Broker archive.
Change the owner of the archive to the same user that owns the AMQ Broker installation to be upgraded.
sudo chown amq-broker:amq-broker jboss-amq-7.x.x.redhat-1.zip
Move the archive to the directory created during the original installation of AMQ Broker. In the following example, the directory
/opt/redhat
is used.sudo mv jboss-amq-7.x.x.redhat-1.zip /opt/redhat
As the directory owner, extract the contents of the compressed archive. The archive is kept in a compressed format. In the following example, the user
amq-broker
extracts the archive by using the unzip command.su - amq-broker cd /opt/redhat unzip jboss-amq-7.x.x.redhat-1.zip
Stop the broker if it is running.
BROKER_INSTANCE_DIR/bin/artemis stop
Back up the instance directory of the broker by copying it to the home directory of the current user.
cp -r BROKER_INSTANCE_DIR ~/
(Optional) Note the current version of the broker. After the broker stops, a line similar to the one below is displayed at the end of its log file, which can be found at
BROKER_INSTANCE_DIR/log/artemis.log
.INFO [org.apache.activemq.artemis.core.server] AMQ221002: Apache ActiveMQ Artemis Message Broker version 2.0.0.amq-700005-redhat-1 [4782d50d-47a2-11e7-a160-9801a793ea45] stopped, uptime 28 minutes
Edit the
BROKER_INSTANCE_DIR/etc/artemis.profile
configuration file to set theARTEMIS_HOME
property to the new directory created when the archive was extracted.ARTEMIS_HOME='/opt/redhat/jboss-amq-7.x.x-redhat-1'
Restart the broker by entering the following command:
BROKER_INSTANCE_DIR/bin/artemis run
(Optional) Confirm that the broker is running and that the version has changed. After starting the broker, open the log file
BROKER_INSTANCE_DIR/log/artemis.log
and find two lines similar to the ones below. Note the new version number that appears in the log after the broker is live.INFO [org.apache.activemq.artemis.core.server] AMQ221007: Server is now live ... INFO [org.apache.activemq.artemis.core.server] AMQ221001: Apache ActiveMQ Artemis Message Broker version 2.1.0.amq-700005-redhat-1 [0.0.0.0, nodeID=4782d50d-47a2-11e7-a160-9801a793ea45]
1.2.2. Upgrading from 7.0.x to 7.0.y on Windows
Prerequisites
Before upgrading AMQ Broker, review the release notes for the target release.
The release notes describe important enhancements, known issues, and changes to behavior in the target release.
For more information, see the AMQ Broker 7.0 Release Notes.
Procedure
- Download the desired archive from the Red Hat Customer Portal by following the instructions provided in Downloading the AMQ Broker archive.
- Use a file manager to move the archive to the folder you created during the last installation of AMQ Broker.
- Extract the file contents into the directory by right-clicking on the zip file and choosing Extract All.
Stop the broker if it is running by entering the following command.
BROKER_INSTANCE_DIR\bin\artemis-service.exe stop
Back up the broker by using a file manager.
- Right click on the BROKER_INSTANCE_DIR folder and select Copy.
- Right click in the same window and select Paste.
(Optional) Note the current version of the broker. After the broker stops, a line similar to the one below is displayed at the end of its log file, which can be found at
BROKER_INSTANCE_DIR\log\artemis.log
.INFO [org.apache.activemq.artemis.core.server] AMQ221002: Apache ActiveMQ Artemis Message Broker version 2.0.0.amq-700005-redhat-1 [4782d50d-47a2-11e7-a160-9801a793ea45] stopped, uptime 28 minutes
Edit the
BROKER_INSTANCE_DIR\etc\artemis.profile
configuration file to set theARTEMIS_HOME
property to the new directory created when the archive was extracted.ARTEMIS_HOME=
NEW_INSTALL_DIR
Restart the broker entering the following command:
BROKER_INSTANCE_DIR\bin\artemis-service.exe start
(Optional) Confirm that the broker is running and that the version has changed. After starting the broker, open the log file
BROKER_INSTANCE_DIR\log\artemis.log
and find two lines similar to the ones below. Note the new version number that appears in the log after the broker is live.INFO [org.apache.activemq.artemis.core.server] AMQ221007: Server is now live ... INFO [org.apache.activemq.artemis.core.server] AMQ221001: Apache ActiveMQ Artemis Message Broker version 2.1.0.amq-700005-redhat-1 [0.0.0.0, nodeID=4782d50d-47a2-11e7-a160-9801a793ea45]
1.3. Upgrading a Broker instance from 7.0.x to 7.1.0
AMQ Broker 7.1.0 includes configuration files and settings that were not included with previous versions. Upgrading a broker instance from 7.0.x to 7.1.0 requires adding these new files and settings to your existing 7.0.x broker instances. The following subsections describe how to upgrade a 7.0.x broker instance to 7.1.0 for different operating systems.
Starting with AMQ Broker 7.1.0, you can access the AMQ Console only from the local host by default. You must modify the configuration in BROKER_INSTANCE_DIR/etc/jolokia-access.xml
to enable remote access. For more information, see Securing AMQ Console and AMQ Broker Connections.
1.3.1. Upgrading from 7.0.x to 7.1.0 on Linux
Before you can upgrade a 7.0.x broker, you need to install Red Hat AMQ Broker 7.1.0 and create a temporary broker instance. This will generate the 7.1.0 configuration files required to upgrade a 7.0.x broker.
Prerequisites
Before upgrading AMQ Broker, review the release notes for the target release.
The release notes describe important enhancements, known issues, and changes to behavior in the target release.
For more information, see the AMQ Broker 7.1 Release Notes.
Before upgrading your 7.0.x brokers, you must first install version 7.1.
For steps on installing 7.1 on Linux, see Installing AMQ Broker.
Procedure
If it is running, stop the 7.0.x broker you want to upgrade:
$ BROKER_INSTANCE_DIR/bin/artemis stop
Back up the instance directory of the broker by copying it to the home directory of the current user.
cp -r BROKER_INSTANCE_DIR ~/
Open the file
artemis.profile
in theBROKER_INSTANCE_DIR/etc/
directory of the 7.0.x broker.Update the
ARTEMIS_HOME
property so that its value refers to the installation directory for AMQ Broker 7.1.0:ARTEMIS_HOME="7.1.0_INSTALL_DIR"
On the line below the one you updated, add the property
ARTEMIS_INSTANCE_URI
and assign it a value that refers to the 7.0.x broker instance directory:ARTEMIS_INSTANCE_URI="file://7.0.x_BROKER_INSTANCE_DIR"
Update the
JAVA_ARGS
property by adding thejolokia.policyLocation
parameter and assigning it the following value:-Djolokia.policyLocation=${ARTEMIS_INSTANCE_URI}/etc/jolokia-access.xml
Create a 7.1.0 broker instance. The creation procedure generates the configuration files required to upgrade from 7.0.x to 7.1.0. In the following example, note that the instance is created in the directory
upgrade_tmp
:$ 7.1.0_INSTALL_DIR/bin/artemis create --allow-anonymous --user admin --password admin upgrade_tmp
Copy configuration files from the
etc
directory of the temporary 7.1.0 instance into theBROKER_INSTANCE_DIR/etc/
directory of the 7.0.x broker.Copy the
management.xml
file:$ cp TEMPORARY_7.1.0_BROKER_INSTANCE_DIR/etc/management.xml 7.0_BROKER_INSTANCE_DIR/etc/
Copy the
jolokia-access.xml
file:$ cp TEMPORARY_7.1.0_BROKER_INSTANCE_DIR/etc/jolokia-access.xml 7.0_BROKER_INSTANCE_DIR/etc/
Open up the
bootstrap.xml
file in theBROKER_INSTANCE_DIR/etc/
directory of the 7.0.x broker.Comment out or delete the following two lines:
<app url="jolokia" war="jolokia.war"/> <app url="hawtio" war="hawtio-no-slf4j.war"/>
Add the following to replace the two lines removed in the previous step:
<app url="console" war="console.war"/>
Start the broker that you upgraded:
$ BROKER_INSTANCE_DIR/bin/artemis run
Additional Resources
For more information about creating an instance of the broker, see Creating a broker instance.
1.3.2. Upgrading from 7.0.x to 7.1.0 on Windows
Before you can upgrade a 7.0.x broker, you need to install Red Hat AMQ Broker 7.1.0 and create a temporary broker instance. This will generate the 7.1.0 configuration files required to upgrade a 7.0.x broker.
Prerequisites
Before upgrading AMQ Broker, review the release notes for the target release.
The release notes describe important enhancements, known issues, and changes to behavior in the target release.
For more information, see the AMQ Broker 7.1 Release Notes.
Before upgrading your 7.0.x brokers, you must first install version 7.1.
For steps on installing 7.1 on Windows, see Installing AMQ Broker.
Procedure
If it is running, stop the 7.0.x broker you want to upgrade:
> BROKER_INSTANCE_DIR\bin\artemis-service.exe stop
Back up the instance directory of the broker by using a file manager.
- Right click on the BROKER_INSTANCE_DIR folder and select Copy.
- Right click in the same window and select Paste.
Open the file
artemis.profile
in theBROKER_INSTANCE_DIR/etc/
directory of the 7.0.x broker.Update the
ARTEMIS_HOME
property so that its value refers to the installation directory for AMQ Broker 7.1.0:ARTEMIS_HOME="7.1.0_INSTALL_DIR"
On the line below the one you updated, add the property
ARTEMIS_INSTANCE_URI
and assign it a value that refers to the 7.0.x broker instance directory:ARTEMIS_INSTANCE_URI="file://7.0.x_BROKER_INSTANCE_DIR"
Update the
JAVA_ARGS
property by adding thejolokia.policyLocation
parameter and assigning it the following value:-Djolokia.policyLocation=${ARTEMIS_INSTANCE_URI}/etc/jolokia-access.xml
Create a 7.1.0 broker instance. The creation procedure generates the configuration files required to upgrade from 7.0.x to 7.1.0. In the following example, note that the instance is created in the directory
upgrade_tmp
:> 7.1.0_INSTALL_DIR/bin/artemis create --allow-anonymous --user admin --password admin upgrade_tmp
Copy configuration files from the
etc
directory of the temporary 7.1.0 instance into theBROKER_INSTANCE_DIR/etc/
directory of the 7.0.x broker.Copy the
management.xml
file:> cp TEMPORARY_7.1.0_BROKER_INSTANCE_DIR/etc/management.xml 7.0_BROKER_INSTANCE_DIR/etc/
Copy the
jolokia-access.xml
file:> cp TEMPORARY_7.1.0_BROKER_INSTANCE_DIR/etc/jolokia-access.xml 7.0_BROKER_INSTANCE_DIR/etc/
Open up the
bootstrap.xml
file in theBROKER_INSTANCE_DIR/etc/
directory of the 7.0.x broker.Comment out or delete the following two lines:
<app url="jolokia" war="jolokia.war"/> <app url="hawtio" war="hawtio-no-slf4j.war"/>
Add the following to replace the two lines removed in the previous step:
<app url="console" war="console.war"/>
Start the broker that you upgraded:
> BROKER_INSTANCE_DIR\bin\artemis-service.exe start
Additional Resources
For more information about creating an instance of the broker, see Creating a broker instance.
1.4. Upgrading a Broker instance from 7.1.x to 7.2.0
AMQ Broker 7.2.0 includes configuration files and settings that were not included with 7.0.x versions. If you are running 7.0.x instances, you must first upgrade those broker instances from 7.0.x to 7.1.0 before upgrading to 7.2.0. The following subsections describe how to upgrade a 7.1.x broker instance to 7.2.0 for different operating systems.
Starting with AMQ Broker 7.1.0, you can access the AMQ Console only from the local host by default. You must modify the configuration in BROKER_INSTANCE_DIR/etc/jolokia-access.xml
to enable remote access. For more information, see Securing AMQ Console and AMQ Broker Connections.
1.4.1. Upgrading from 7.1.x to 7.2.0 on Linux
The name of the archive that you download could differ from what is used in the following examples.
Procedure
- Download the desired archive from the Red Hat Customer Portal by following the instructions provided in Downloading the AMQ Broker archive.
Change the owner of the archive to the same user that owns the AMQ Broker installation to be upgraded.
sudo chown amq-broker:amq-broker amq-7.x.x.redhat-1.zip
Move the archive to the directory created during the original installation of AMQ Broker. In the following example, the directory
/opt/redhat
is used.sudo mv amq-7.x.x.redhat-1.zip /opt/redhat
As the directory owner, extract the contents of the compressed archive. In the following example, the user
amq-broker
extracts the archive by using the unzip command.su - amq-broker cd /opt/redhat unzip jboss-amq-7.x.x.redhat-1.zip
Stop the broker if it is running.
BROKER_INSTANCE_DIR/bin/artemis stop
Back up the instance directory of the broker by copying it to the home directory of the current user.
cp -r BROKER_INSTANCE_DIR ~/
(Optional) Note the current version of the broker. After the broker stops, a line similar to the one below is displayed at the end of its log file, which can be found at
BROKER_INSTANCE_DIR/log/artemis.log
.INFO [org.apache.activemq.artemis.core.server] AMQ221001: Apache ActiveMQ Artemis Message Broker version 2.5.0.amq-720001-redhat-1 [0.0.0.0, nodeID=554cce00-63d9-11e8-9808-54ee759954c4]
Edit the
BROKER_INSTANCE_DIR/etc/artemis.profile
configuration file to set theARTEMIS_HOME
property to the new directory created when the archive was extracted.ARTEMIS_HOME='/opt/redhat/amq-7.x.x-redhat-1'
Restart the broker by entering the following command:
BROKER_INSTANCE_DIR/bin/artemis run
(Optional) Confirm that the broker is running and that the version has changed. After starting the broker, open the log file
BROKER_INSTANCE_DIR/log/artemis.log
and find two lines similar to the ones below. Note the new version number that appears in the log after the broker is live.INFO [org.apache.activemq.artemis.core.server] AMQ221007: Server is now live ... INFO [org.apache.activemq.artemis.core.server] AMQ221001: Apache ActiveMQ Artemis Message Broker version 2.5.0.amq-720001-redhat-1 [0.0.0.0, nodeID=554cce00-63d9-11e8-9808-54ee759954c4]
Additional Resources
- For more information about creating an instance of the broker, see Creating a broker instance.
-
You can now store a broker instance’s configuration files and data in any custom directory, including locations outside of the broker instance’s directory. In the
BROKER_INSTANCE_DIR/etc/artemis.profile
file, update theARTEMIS_INSTANCE_ETC_URI
property by specifying the location of the custom directory after creating the broker instance. Previously, these configuration files and data could only be stored in theetc/
anddata/
directories within the broker instance’s directory.
1.4.2. Upgrading from 7.1.x to 7.2.0 on Windows
Procedure
- Download the desired archive from the Red Hat Customer Portal by following the instructions provided in Downloading the AMQ Broker archive.
- Use a file manager to move the archive to the folder you created during the last installation of AMQ Broker.
- Extract the file contents into the directory by right-clicking on the zip file and choosing Extract All.
Stop the broker if it is running by entering the following command.
BROKER_INSTANCE_DIR\bin\artemis-service.exe stop
Back up the broker by using a file manager.
- Right click on the BROKER_INSTANCE_DIR folder and select Copy.
- Right click in the same window and select Paste.
(Optional) Note the current version of the broker. After the broker stops, a line similar to the one below is displayed at the end of its log file, which can be found at
BROKER_INSTANCE_DIR\log\artemis.log
.INFO [org.apache.activemq.artemis.core.server] AMQ221002: Apache ActiveMQ Artemis Message Broker version 2.0.0.amq-700005-redhat-1 [4782d50d-47a2-11e7-a160-9801a793ea45] stopped, uptime 28 minutes
Edit the
BROKER_INSTANCE_DIR\etc\artemis.profile.cmd
andBROKER_INSTANCE_DIR\bin\artemis-service.xml
configuration files to set theARTEMIS_HOME
property to the new directory created when the archive was extracted.ARTEMIS_HOME=
NEW_INSTALL_DIR
Restart the broker entering the following command:
BROKER_INSTANCE_DIR\bin\artemis-service.exe start
(Optional) Confirm that the broker is running and that the version has changed. After starting the broker, open the log file
BROKER_INSTANCE_DIR\log\artemis.log
and find two lines similar to the ones below. Note the new version number that appears in the log after the broker is live.INFO [org.apache.activemq.artemis.core.server] AMQ221007: Server is now live ... INFO [org.apache.activemq.artemis.core.server] AMQ221001: Apache ActiveMQ Artemis Message Broker version 2.5.0.amq-720001-redhat-1 [0.0.0.0, nodeID=554cce00-63d9-11e8-9808-54ee759954c4]
Additional Resources
- For more information about creating an instance of the broker, see Creating a broker instance.
-
You can now store a broker instance’s configuration files and data in any custom directory, including locations outside of the broker instance’s directory. In the
BROKER_INSTANCE_DIR\etc\artemis.profile
file, update theARTEMIS_INSTANCE_ETC_URI
property by specifying the location of the custom directory after creating the broker instance. Previously, these configuration files and data could only be stored in the\etc
and\data
directories within the broker instance’s directory.
1.5. Upgrading a Broker instance from 7.2.x to 7.3.0
The following subsections describe how to upgrade a 7.2.x broker instance to 7.3.0 for different operating systems.
1.5.1. Resolve exception due to deprecated dispatch console
Starting in version 7.3.0, AMQ Broker no longer ships with the Hawtio dispatch console plugin dispatch-hawtio-console.war
. Previously, the dispatch console was used to manage AMQ Interconnect. However, AMQ Interconnect now uses its own, standalone web console. This change affects the upgrade procedures in the sections that follow.
If you take no further action before upgrading your broker instance to 7.3.0, the upgrade process produces an exception that looks like the following:
2019-04-11 18:00:41,334 WARN [org.eclipse.jetty.webapp.WebAppContext] Failed startup of context o.e.j.w.WebAppContext@1ef3efa8{/dispatch-hawtio-console,null,null}{/opt/amqbroker/amq-broker-7.3.0/web/dispatch-hawtio-console.war}: java.io.FileNotFoundException: /opt/amqbroker/amq-broker-7.3.0/web/dispatch-hawtio-console.war.
You can safely ignore the preceding exception without affecting the success of your upgrade.
However, if you would prefer not to see this exception during your upgrade, you must first remove a reference to the Hawtio dispatch console plugin in the bootstrap.xml
file of your existing broker instance. The bootstrap.xml
file is in the {instance_directory}/etc/
directory of your broker instance. The following example shows some of the contents of the bootstrap.xml
file for a AMQ Broker 7.2.4 instance:
<broker xmlns="http://activemq.org/schema"> .... <!-- The web server is only bound to localhost by default --> <web bind="http://localhost:8161" path="web"> <app url="redhat-branding" war="redhat-branding.war"/> <app url="artemis-plugin" war="artemis-plugin.war"/> <app url="dispatch-hawtio-console" war="dispatch-hawtio-console.war"/> <app url="console" war="console.war"/> </web> </broker>
To avoid an exception when upgrading AMQ Broker to version 7.3.0, delete the line <app url="dispatch-hawtio-console" war="dispatch-hawtio-console.war"/>
, as shown in the preceding example. Then, save the modified bootstrap file and start the upgrade process, as described in the sections that follow.
Starting with AMQ Broker 7.1.0, you can access the AMQ Console only from the local host by default. You must modify the configuration in BROKER_INSTANCE_DIR/etc/jolokia-access.xml
to enable remote access. For more information, see Securing AMQ Console and AMQ Broker Connections.
1.5.2. Upgrading from 7.2.x to 7.3.0 on Linux
The name of the archive that you download could differ from what is used in the following examples.
Procedure
- Download the desired archive from the Red Hat Customer Portal by following the instructions provided in Downloading the AMQ Broker archive.
Change the owner of the archive to the same user that owns the AMQ Broker installation to be upgraded.
sudo chown amq-broker:amq-broker amq-7.x.x.redhat-1.zip
Move the archive to the directory created during the original installation of AMQ Broker. In the following example, the directory
/opt/redhat
is used.sudo mv amq-7.x.x.redhat-1.zip /opt/redhat
As the directory owner, extract the contents of the compressed archive. In the following example, the user
amq-broker
extracts the archive by using the unzip command.su - amq-broker cd /opt/redhat unzip jboss-amq-7.x.x.redhat-1.zip
Stop the broker if it is running.
BROKER_INSTANCE_DIR/bin/artemis stop
Back up the instance directory of the broker by copying it to the home directory of the current user.
cp -r BROKER_INSTANCE_DIR ~/
(Optional) Note the current version of the broker. After the broker stops, a line similar to the one below is displayed at the end of its log file, which can be found at
BROKER_INSTANCE_DIR/log/artemis.log
.INFO [org.apache.activemq.artemis.core.server] AMQ221001: Apache ActiveMQ Artemis Message Broker version 2.6.3.amq-720001-redhat-1 [0.0.0.0, nodeID=554cce00-63d9-11e8-9808-54ee759954c4]
Edit the
BROKER_INSTANCE_DIR/etc/artemis.profile
configuration file to set theARTEMIS_HOME
property to the new directory created when the archive was extracted.ARTEMIS_HOME='/opt/redhat/amq-7.x.x-redhat-1'
Restart the broker by entering the following command:
BROKER_INSTANCE_DIR/bin/artemis run
(Optional) Confirm that the broker is running and that the version has changed. After starting the broker, open the log file
BROKER_INSTANCE_DIR/log/artemis.log
and find two lines similar to the ones below. Note the new version number that appears in the log after the broker is live.INFO [org.apache.activemq.artemis.core.server] AMQ221007: Server is now live ... INFO [org.apache.activemq.artemis.core.server] AMQ221001: Apache ActiveMQ Artemis Message Broker version 2.7.0.redhat-00054 [0.0.0.0, nodeID=554cce00-63d9-11e8-9808-54ee759954c4]
Additional Resources
- For more information about creating an instance of the broker, see Creating a broker instance.
-
You can now store a broker instance’s configuration files and data in any custom directory, including locations outside of the broker instance’s directory. In the
BROKER_INSTANCE_DIR/etc/artemis.profile
file, update theARTEMIS_INSTANCE_ETC_URI
property by specifying the location of the custom directory after creating the broker instance. Previously, these configuration files and data could only be stored in theetc/
anddata/
directories within the broker instance’s directory.
1.5.3. Upgrading from 7.2.x to 7.3.0 on Windows
Procedure
- Download the desired archive from the Red Hat Customer Portal by following the instructions provided in Downloading the AMQ Broker archive.
- Use a file manager to move the archive to the folder you created during the last installation of AMQ Broker.
- Extract the file contents into the directory by right-clicking on the zip file and choosing Extract All.
Stop the broker if it is running by entering the following command.
BROKER_INSTANCE_DIR\bin\artemis-service.exe stop
Back up the broker by using a file manager.
- Right click on the BROKER_INSTANCE_DIR folder and select Copy.
- Right click in the same window and select Paste.
(Optional) Note the current version of the broker. After the broker stops, a line similar to the one below is displayed at the end of its log file, which can be found at
BROKER_INSTANCE_DIR\log\artemis.log
.INFO [org.apache.activemq.artemis.core.server] AMQ221002: Apache ActiveMQ Artemis Message Broker version 2.6.3.amq-720001-redhat-1 [4782d50d-47a2-11e7-a160-9801a793ea45] stopped, uptime 28 minutes
Edit the
BROKER_INSTANCE_DIR\etc\artemis.profile.cmd
andBROKER_INSTANCE_DIR\bin\artemis-service.xml
configuration files to set theARTEMIS_HOME
property to the new directory created when the archive was extracted.ARTEMIS_HOME=
NEW_INSTALL_DIR
Edit the
BROKER_INSTANCE_DIR\etc\artemis.profile.cmd
configuration file to set the JAVA_ARGS environment variable to reference the correct log manager version.JAVA_ARGS=
NEW_INSTALL_DIR\lib\jboss-logmanager-2.0.3.Final-redhat-1.jar
Edit the
BROKER_INSTANCE_DIR\bin\artemis-service.xml
configuration file to set the bootstrap class path argument to reference the correct log manager version.Xbootclasspath/a:%ARTEMIS_HOME%\lib\jboss-logmanager-2.0.3.Final-redhat-1.jar
Restart the broker entering the following command:
BROKER_INSTANCE_DIR\bin\artemis-service.exe start
(Optional) Confirm that the broker is running and that the version has changed. After starting the broker, open the log file
BROKER_INSTANCE_DIR\log\artemis.log
and find two lines similar to the ones below. Note the new version number that appears in the log after the broker is live.INFO [org.apache.activemq.artemis.core.server] AMQ221007: Server is now live ... INFO [org.apache.activemq.artemis.core.server] AMQ221001: Apache ActiveMQ Artemis Message Broker version 2.7.0.redhat-00054 [0.0.0.0, nodeID=554cce00-63d9-11e8-9808-54ee759954c4]
Additional Resources
- For more information about creating an instance of the broker, see Creating a broker instance.
-
You can now store a broker instance’s configuration files and data in any custom directory, including locations outside of the broker instance’s directory. In the
BROKER_INSTANCE_DIR\etc\artemis.profile
file, update theARTEMIS_INSTANCE_ETC_URI
property by specifying the location of the custom directory after creating the broker instance. Previously, these configuration files and data could only be stored in the\etc
and\data
directories within the broker instance’s directory.
1.6. Upgrading a Broker instance from 7.3.0 to 7.4.0
The following subsections describe how to upgrade a 7.3.0 broker instance to 7.4.0 for different operating systems.
Starting with AMQ Broker 7.1.0, you can access the AMQ Console only from the local host by default. You must modify the configuration in BROKER_INSTANCE_DIR/etc/jolokia-access.xml
to enable remote access. For more information, see Securing AMQ Console and AMQ Broker Connections.
1.6.1. Upgrading from 7.3.0 to 7.4.0 on Linux
The name of the archive that you download could differ from what is used in the following examples.
Procedure
- Download the desired archive from the Red Hat Customer Portal. Follow the instructions provided in Downloading the AMQ Broker archive.
Change the owner of the archive to the same user that owns the AMQ Broker installation to be upgraded. The following example shows a user called
amq-broker
.sudo chown amq-broker:amq-broker amq-broker-7.x.x.redhat-1.zip
Move the archive to the directory created during the original installation of AMQ Broker. The following example uses
/opt/redhat
.sudo mv amq-broker-7.x.x.redhat-1.zip /opt/redhat
As the directory owner, extract the contents of the compressed archive. In the following example, the user
amq-broker
extracts the archive using theunzip
command.su - amq-broker cd /opt/redhat unzip amq-broker-7.x.x.redhat-1.zip
If the broker is running, stop it.
BROKER_INSTANCE_DIR/bin/artemis stop
Back up the instance directory of the broker by copying it to the home directory of the current user.
cp -r BROKER_INSTANCE_DIR ~/
(Optional) Note the current version of the broker. After the broker stops, you see a line similar to the one below at the end of the
BROKER_INSTANCE_DIR/log/artemis.log
file.INFO [org.apache.activemq.artemis.core.server] AMQ221001: Apache ActiveMQ Artemis Message Broker version 2.7.0.redhat-00054 [0.0.0.0, nodeID=554cce00-63d9-11e8-9808-54ee759954c4]
Edit the
BROKER_INSTANCE_DIR/etc/artemis.profile
configuration file.Set the
ARTEMIS_HOME
property to the new directory created when the archive was extracted.ARTEMIS_HOME='/opt/redhat/amq-broker-7.x.x-redhat-1'
Edit the
JAVA_ARGS
property. Add the bootstrap class path argument, which references a dependent file for the log manager.-Xbootclasspath/a:$ARTEMIS_HOME/lib/wildfly-common-1.5.1.Final-redhat-00001.jar
Edit the
BROKER_INSTANCE_DIR/etc/bootstrap.xml
configuration file. In the<web>
configuration element, add a reference to the metrics plugin file for AMQ Broker.<app url="metrics" war="metrics.war"/>
Restart the broker.
BROKER_INSTANCE_DIR/bin/artemis run
(Optional) Confirm that the broker is running and that the version has changed. After starting the broker, open the
BROKER_INSTANCE_DIR/log/artemis.log
file. Find two lines similar to the ones below. Note the new version number that appears in the log when the broker is live.INFO [org.apache.activemq.artemis.core.server] AMQ221007: Server is now live ... INFO [org.apache.activemq.artemis.core.server] AMQ221001: Apache ActiveMQ Artemis Message Broker version 2.9.0.redhat-00001 [0.0.0.0, nodeID=554cce00-63d9-11e8-9808-54ee759954c4]
Additional Resources
- For more information about creating an instance of the broker, see Creating a broker instance.
-
You can now store a broker instance’s configuration files and data in any custom directory, including locations outside of the broker instance’s directory. In the
BROKER_INSTANCE_DIR/etc/artemis.profile
file, update theARTEMIS_INSTANCE_ETC_URI
property by specifying the location of the custom directory after creating the broker instance. Previously, these configuration files and data could only be stored in theetc/
anddata/
directories within the broker instance’s directory.
1.6.2. Upgrading from 7.3.0 to 7.4.0 on Windows
Procedure
- Download the desired archive from the Red Hat Customer Portal. Follow the instructions provided in Downloading the AMQ Broker archive.
- Use a file manager to move the archive to the folder you created during the last installation of AMQ Broker.
- Extract the file contents into the installation directory. Right-click the .zip file and select Extract All.
If the broker is running, stop it.
BROKER_INSTANCE_DIR\bin\artemis-service.exe stop
Back up the broker using a file manager.
- Right click the BROKER_INSTANCE_DIR folder. Select Copy.
- Right click in the same window. Select Paste.
(Optional) Note the current version of the broker. After the broker stops, you see a line similar to the one below at the end of the
BROKER_INSTANCE_DIR\log\artemis.log
file.INFO [org.apache.activemq.artemis.core.server] AMQ221002: Apache ActiveMQ Artemis Message Broker version 2.7.0.redhat-00054 [4782d50d-47a2-11e7-a160-9801a793ea45] stopped, uptime 28 minutes
Edit the
BROKER_INSTANCE_DIR\etc\artemis.profile.cmd
andBROKER_INSTANCE_DIR\bin\artemis-service.xml
configuration files. Set theARTEMIS_HOME
property to the new directory created when the archive was extracted.ARTEMIS_HOME=
NEW_INSTALL_DIR
Edit the
BROKER_INSTANCE_DIR\etc\artemis.profile.cmd
configuration file. Set the JAVA_ARGS environment variable to reference the correct log manager version and dependent file.JAVA_ARGS=
-Xbootclasspath/%ARTEMIS_HOME%\lib\jboss-logmanager-2.1.10.Final-redhat-00001.jar;%ARTEMIS_HOME%\lib\wildfly-common-1.5.1.Final-redhat-00001.jar
Edit the
BROKER_INSTANCE_DIR\bin\artemis-service.xml
configuration file. Set the bootstrap class path argument to reference the correct log manager version and dependent file.<argument>-Xbootclasspath/a:%ARTEMIS_HOME%\lib\jboss-logmanager-2.1.10.Final-redhat-00001.jar;%ARTEMIS_HOME%\lib\wildfly-common-1.5.1.Final-redhat-00001.jar</argument>
Edit the
BROKER_INSTANCE_DIR\etc\bootstrap.xml
configuration file. In the<web>
configuration element, add a reference to the metrics plugin file for AMQ Broker.<app url="metrics" war="metrics.war"/>
Restart the broker.
BROKER_INSTANCE_DIR\bin\artemis-service.exe start
(Optional) Confirm that the broker is running and that the version has changed. After starting the broker, open the
BROKER_INSTANCE_DIR\log\artemis.log
file. Find two lines similar to the ones below. Note the new version number that appears in the log when the broker is live.INFO [org.apache.activemq.artemis.core.server] AMQ221007: Server is now live ... INFO [org.apache.activemq.artemis.core.server] AMQ221001: Apache ActiveMQ Artemis Message Broker version 2.9.0.redhat-00001 [0.0.0.0, nodeID=554cce00-63d9-11e8-9808-54ee759954c4]
Additional Resources
- For more information about creating an instance of the broker, see Creating a broker instance.
-
You can now store a broker instance’s configuration files and data in any custom directory, including locations outside of the broker instance’s directory. In the
BROKER_INSTANCE_DIR\etc\artemis.profile
file, update theARTEMIS_INSTANCE_ETC_URI
property by specifying the location of the custom directory after creating the broker instance. Previously, these configuration files and data could only be stored in the\etc
and\data
directories within the broker instance’s directory.
1.7. Upgrading a Broker instance from 7.4.0 to 7.4.x
AMQ Broker 7.4 has been designated as a Long Term Support (LTS) release version. Bug fixes and security advisories will be made available for AMQ Broker 7.4 in a series of micro releases (7.4.1, 7.4.2, and so on) for a period of at least 12 months. This means that you will be able to get recent bug fixes and security advisories for AMQ Broker without having to upgrade to a new minor release. For more information, see Long Term Support for AMQ Broker.
Starting with AMQ Broker 7.1.0, you can access the AMQ Console only from the local host by default. You must modify the configuration in BROKER_INSTANCE_DIR/etc/jolokia-access.xml
to enable remote access. For more information, see Securing AMQ Console and AMQ Broker Connections.
The following subsections describe how to upgrade a 7.4.0 broker instance to 7.4.x for different operating systems.
1.7.1. Upgrading from 7.4.0 to 7.4.x on Linux
The name of the archive that you download could differ from what is used in the following examples.
Procedure
- Download the desired archive from the Red Hat Customer Portal. Follow the instructions provided in Downloading the AMQ Broker archive.
Change the owner of the archive to the same user that owns the AMQ Broker installation to be upgraded. The following example shows a user called
amq-broker
.sudo chown amq-broker:amq-broker amq-broker-7.4.x.redhat-1.zip
Move the archive to the directory created during the original installation of AMQ Broker. The following example uses
/opt/redhat
.sudo mv amq-broker-7.4.x.redhat-1.zip /opt/redhat
As the directory owner, extract the contents of the compressed archive. In the following example, the user
amq-broker
extracts the archive using theunzip
command.su - amq-broker cd /opt/redhat unzip amq-broker-7.4.x.redhat-1.zip
If the broker is running, stop it.
BROKER_INSTANCE_DIR/bin/artemis stop
Back up the instance directory of the broker by copying it to the home directory of the current user.
cp -r BROKER_INSTANCE_DIR ~/
(Optional) Note the current version of the broker. After the broker stops, you see a line similar to the one below at the end of the
BROKER_INSTANCE_DIR/log/artemis.log
file.INFO [org.apache.activemq.artemis.core.server] AMQ221001: Apache ActiveMQ Artemis Message Broker version 2.7.0.redhat-00054 [0.0.0.0, nodeID=554cce00-63d9-11e8-9808-54ee759954c4]
Edit the
BROKER_INSTANCE_DIR/etc/artemis.profile
configuration file. Set theARTEMIS_HOME
property to the new directory created when the archive was extracted.ARTEMIS_HOME='/opt/redhat/amq-broker-7.4.x-redhat-1'
Restart the broker.
BROKER_INSTANCE_DIR/bin/artemis run
(Optional) Confirm that the broker is running and that the version has changed. After starting the broker, open the
BROKER_INSTANCE_DIR/log/artemis.log
file. Find two lines similar to the ones below. Note the new version number that appears in the log when the broker is live.INFO [org.apache.activemq.artemis.core.server] AMQ221007: Server is now live ... INFO [org.apache.activemq.artemis.core.server] AMQ221001: Apache ActiveMQ Artemis Message Broker version 2.9.0.redhat-00001 [0.0.0.0, nodeID=554cce00-63d9-11e8-9808-54ee759954c4]
Additional Resources
- For more information about creating an instance of the broker, see Creating a broker instance.
-
You can now store a broker instance’s configuration files and data in any custom directory, including locations outside of the broker instance’s directory. In the
BROKER_INSTANCE_DIR/etc/artemis.profile
file, update theARTEMIS_INSTANCE_ETC_URI
property by specifying the location of the custom directory after creating the broker instance. Previously, these configuration files and data could only be stored in theetc/
anddata/
directories within the broker instance’s directory.
1.7.2. Upgrading from 7.4.0 to 7.4.x on Windows
Procedure
- Download the desired archive from the Red Hat Customer Portal. Follow the instructions provided in Downloading the AMQ Broker archive.
- Use a file manager to move the archive to the folder you created during the last installation of AMQ Broker.
- Extract the file contents into the installation directory. Right-click the .zip file and select Extract All.
If the broker is running, stop it.
BROKER_INSTANCE_DIR\bin\artemis-service.exe stop
Back up the broker using a file manager.
- Right click the BROKER_INSTANCE_DIR folder. Select Copy.
- Right click in the same window. Select Paste.
(Optional) Note the current version of the broker. After the broker stops, you see a line similar to the one below at the end of the
BROKER_INSTANCE_DIR\log\artemis.log
file.INFO [org.apache.activemq.artemis.core.server] AMQ221002: Apache ActiveMQ Artemis Message Broker version 2.7.0.redhat-00054 [4782d50d-47a2-11e7-a160-9801a793ea45] stopped, uptime 28 minutes
Edit the
BROKER_INSTANCE_DIR\etc\artemis.profile.cmd
andBROKER_INSTANCE_DIR\bin\artemis-service.xml
configuration files. Set theARTEMIS_HOME
property to the new directory created when the archive was extracted.ARTEMIS_HOME=
NEW_INSTALL_DIR
Restart the broker.
BROKER_INSTANCE_DIR\bin\artemis-service.exe start
(Optional) Confirm that the broker is running and that the version has changed. After starting the broker, open the
BROKER_INSTANCE_DIR\log\artemis.log
file. Find two lines similar to the ones below. Note the new version number that appears in the log when the broker is live.INFO [org.apache.activemq.artemis.core.server] AMQ221007: Server is now live ... INFO [org.apache.activemq.artemis.core.server] AMQ221001: Apache ActiveMQ Artemis Message Broker version 2.9.0.redhat-00001 [0.0.0.0, nodeID=554cce00-63d9-11e8-9808-54ee759954c4]
Additional Resources
- For more information about creating an instance of the broker, see Creating a broker instance.
-
You can now store a broker instance’s configuration files and data in any custom directory, including locations outside of the broker instance’s directory. In the
BROKER_INSTANCE_DIR\etc\artemis.profile
file, update theARTEMIS_INSTANCE_ETC_URI
property by specifying the location of the custom directory after creating the broker instance. Previously, these configuration files and data could only be stored in the\etc
and\data
directories within the broker instance’s directory.
1.8. Upgrading a Broker instance from 7.4.x to 7.5.0
The following subsections describe how to upgrade a 7.4.x broker instance to 7.5.0 for different operating systems.
Starting with AMQ Broker 7.1.0, you can access the AMQ Console only from the local host by default. You must modify the configuration in BROKER_INSTANCE_DIR/etc/jolokia-access.xml
to enable remote access. For more information, see Securing AMQ Console and AMQ Broker Connections.
1.8.1. Upgrading from 7.4.x to 7.5.0 on Linux
The name of the archive that you download could differ from what is used in the following examples.
Procedure
- Download the desired archive from the Red Hat Customer Portal. Follow the instructions provided in Downloading the AMQ Broker archive.
Change the owner of the archive to the same user that owns the AMQ Broker installation to be upgraded. The following example shows a user called
amq-broker
.sudo chown amq-broker:amq-broker amq-broker-7.5.0.redhat-1.zip
Move the archive to the directory created during the original installation of AMQ Broker. The following example uses
/opt/redhat
.sudo mv amq-broker-7.5.0.redhat-1.zip /opt/redhat
As the directory owner, extract the contents of the compressed archive. In the following example, the user
amq-broker
extracts the archive using theunzip
command.su - amq-broker cd /opt/redhat unzip amq-broker-7.5.0.redhat-1.zip
If the broker is running, stop it.
BROKER_INSTANCE_DIR/bin/artemis stop
Back up the instance directory of the broker by copying it to the home directory of the current user.
cp -r BROKER_INSTANCE_DIR ~/
(Optional) Note the current version of the broker. After the broker stops, you see a line similar to the one below at the end of the
BROKER_INSTANCE_DIR/log/artemis.log
file.INFO [org.apache.activemq.artemis.core.server] AMQ221001: Apache ActiveMQ Artemis Message Broker version 2.7.0.redhat-00054 [0.0.0.0, nodeID=554cce00-63d9-11e8-9808-54ee759954c4]
Edit the
BROKER_INSTANCE_DIR/etc/artemis.profile
configuration file.Set the
ARTEMIS_HOME
property to the new directory created when the archive was extracted.ARTEMIS_HOME='/opt/redhat/amq-broker-7.5.0-redhat-1'
Edit the
JAVA_ARGS
property. Add the bootstrap class path argument, which references a dependent file for the log manager.-Xbootclasspath/a:$ARTEMIS_HOME/lib/wildfly-common-1.5.2.Final-redhat-00001.jar
Restart the broker.
BROKER_INSTANCE_DIR/bin/artemis run
(Optional) Confirm that the broker is running and that the version has changed. After starting the broker, open the
BROKER_INSTANCE_DIR/log/artemis.log
file. Find two lines similar to the ones below. Note the new version number that appears in the log when the broker is live.INFO [org.apache.activemq.artemis.core.server] AMQ221007: Server is now live ... INFO [org.apache.activemq.artemis.core.server] AMQ221001: Apache ActiveMQ Artemis Message Broker version 2.9.0.redhat-00001 [0.0.0.0, nodeID=554cce00-63d9-11e8-9808-54ee759954c4]
Additional Resources
- For more information about creating an instance of the broker, see Creating a broker instance.
-
You can now store a broker instance’s configuration files and data in any custom directory, including locations outside of the broker instance’s directory. In the
BROKER_INSTANCE_DIR/etc/artemis.profile
file, update theARTEMIS_INSTANCE_ETC_URI
property by specifying the location of the custom directory after creating the broker instance. Previously, these configuration files and data could only be stored in theetc/
anddata/
directories within the broker instance’s directory.
1.8.2. Upgrading from 7.4.x to 7.5.0 on Windows
Procedure
- Download the desired archive from the Red Hat Customer Portal. Follow the instructions provided in Downloading the AMQ Broker archive.
- Use a file manager to move the archive to the folder you created during the last installation of AMQ Broker.
- Extract the file contents into the installation directory. Right-click the .zip file and select Extract All.
If the broker is running, stop it.
BROKER_INSTANCE_DIR\bin\artemis-service.exe stop
Back up the broker using a file manager.
- Right click the BROKER_INSTANCE_DIR folder. Select Copy.
- Right click in the same window. Select Paste.
(Optional) Note the current version of the broker. After the broker stops, you see a line similar to the one below at the end of the
BROKER_INSTANCE_DIR\log\artemis.log
file.INFO [org.apache.activemq.artemis.core.server] AMQ221002: Apache ActiveMQ Artemis Message Broker version 2.7.0.redhat-00054 [4782d50d-47a2-11e7-a160-9801a793ea45] stopped, uptime 28 minutes
Edit the
BROKER_INSTANCE_DIR\etc\artemis.profile.cmd
andBROKER_INSTANCE_DIR\bin\artemis-service.xml
configuration files. Set theARTEMIS_HOME
property to the new directory created when the archive was extracted.ARTEMIS_HOME=
NEW_INSTALL_DIR
Edit the
BROKER_INSTANCE_DIR\etc\artemis.profile.cmd
configuration file. Set theJAVA_ARGS
environment variable to reference the correct log manager version and dependent file.JAVA_ARGS=-Xbootclasspath/%ARTEMIS_HOME%\lib\jboss-logmanager-2.1.10.Final-redhat-00001.jar;%ARTEMIS_HOME%\lib\wildfly-common-1.5.2.Final-redhat-00001.jar
Edit the
BROKER_INSTANCE_DIR\bin\artemis-service.xml
configuration file. Set the bootstrap class path argument to reference the correct log manager version and dependent file.<argument>-Xbootclasspath/a:%ARTEMIS_HOME%\lib\jboss-logmanager-2.1.10.Final-redhat-00001.jar;%ARTEMIS_HOME%\lib\wildfly-common-1.5.2.Final-redhat-00001.jar</argument>
Restart the broker.
BROKER_INSTANCE_DIR\bin\artemis-service.exe start
(Optional) Confirm that the broker is running and that the version has changed. After starting the broker, open the
BROKER_INSTANCE_DIR\log\artemis.log
file. Find two lines similar to the ones below. Note the new version number that appears in the log when the broker is live.INFO [org.apache.activemq.artemis.core.server] AMQ221007: Server is now live ... INFO [org.apache.activemq.artemis.core.server] AMQ221001: Apache ActiveMQ Artemis Message Broker version 2.9.0.redhat-00001 [0.0.0.0, nodeID=554cce00-63d9-11e8-9808-54ee759954c4]
Additional Resources
- For more information about creating an instance of the broker, see Creating a broker instance.
-
You can now store a broker instance’s configuration files and data in any custom directory, including locations outside of the broker instance’s directory. In the
BROKER_INSTANCE_DIR\etc\artemis.profile
file, update theARTEMIS_INSTANCE_ETC_URI
property by specifying the location of the custom directory after creating the broker instance. Previously, these configuration files and data could only be stored in the\etc
and\data
directories within the broker instance’s directory.
Chapter 2. Using AMQ Console
AMQ Console is a web console included in the AMQ Broker installation that enables you to use a web browser to manage AMQ Broker.
AMQ Console is based on hawtio.
2.1. Overview
AMQ Broker is a full-featured, message-oriented middleware broker. It offers specialized queueing behaviors, message persistence, and manageability. It supports multiple protocols and client languages, freeing you to use many of your application assets.
AMQ Broker’s key features allow you to:
monitor your AMQ brokers and clients
- view the topology
- view network health at a glance
manage AMQ brokers using:
- AMQ Console
- Command-line Interface (CLI)
- Management API
The supported web browsers for AMQ Console are Firefox, Chrome, and Internet Explorer. For more information on supported browser versions, see AMQ 7 Supported Configurations.
2.2. Accessing AMQ Console
After installing AMQ Console, you can log in and connect to the brokers in your environment. Access AMQ Console through a single broker instance, regardless of how many brokers are installed in your environment.
Procedure
- Start the AMQ broker instances that you want to manage in AMQ Console.
Navigate to the web console address for the broker instance that you started.
NoteThe web console address is
http://HOST:PORT/console/login
. If you are using the default address, navigate to http://localhost:8161/console/login.- Log in to AMQ Console using the default username and password that you created when you created the broker instance.
Additional resources
For more information on getting started with the broker, see Starting the broker in Getting Started with AMQ Broker.
2.3. Configuring AMQ Console
Configure user access and request access to resources on the broker.
2.3.1. Setting up user access to AMQ Console
You can access AMQ Console using the broker login credentials. The following table provides information about different methods to add additional broker users to access AMQ Console:
Authentication Method | Description |
---|---|
Guest Authentication | Enables anonymous access. In this configuration, any user who connects without credentials or with the wrong credentials will be authenticated automatically and assigned a specific user and role. For more information, see Enabling Guest Access in Configuring AMQ Broker. |
Basic User and Password Authentication | For each user, you must define a username and password and assign a security role. Users can only log into AMQ Console using these credentials. For more information, see Enabling Password Authentication in Configuring AMQ Broker. |
LDAP Authentication | Users are authenticated and authorized by checking the credentials against user data stored in a central X.500 directory server. For more information, see Adding Certificate-Based Authentication in Configuring AMQ Broker. |
2.3.2. Securing AMQ Console and AMQ Broker connections
To allow AMQ Console to access resources on the broker, specify the permitted origin URLs that can access it by editing the allow-origin
parameters in the access management configuration file on the broker.
Prerequisites
-
You must first upgrade to AMQ Broker 7.1.0, during which the access management configuration file named
jolokia-access.xml
is added to the broker instance. For more information about upgrading, see Upgrading a Broker instance from 7.0.x to 7.1.0.
Procedure
-
Open the
<broker-instance-dir>/etc/jolokia-access.xml
file in a text editor. Within the
<cors>
section, edit theallow-origin
settings to add each URL that you want to allow to access AMQ Console. For example:<cors> <!-- allow access to web console from localhost --> <allow-origin>https://localhost:8161/*</allow-origin> <!-- Check for the proper origin on the server side, too --> <strict-checking/> </cors>
- Save the file.
Additional resources
- For more information on Cross-Origin Resource Sharing, see W3C Recommendations.
- For more information on security commands, see Jolokia Protocols.
2.3.3. Securing network access to AMQ Console
To secure AMQ Console when it is being accessed over a WAN or the internet, use SSL to specify that network access uses https instead of http.
Prerequisites
The following should be located in the <broker-instance-dir>/etc/
:
- Java KeyStore (.jks)
- Java TrustStore (only if you want to require client authentication)
Procedure
-
Open the
<broker-instance-dir>/etc/bootstrap.xml
file. In the
<web>
element, add the following attributes:<web bind="https://localhost:8161" path="web" keyStorePath="<path_to_KeyStore>" keyStorePassword="<password>" clientAuth="<true/false>" trustStorePath="<path_to_TrustStore>" trustStorePassword="<password>"> ... </web>
Attribute Description bind
Change the URI scheme to
https
.keyStorePath
The path of the KeyStore file. For example:
keyStorePath="${artemis.instance}/etc/keystore.jks"
keyStorePassword
The KeyStore’s password.
clientAuth
Specifies whether client authentication is required. The default is
false
, but you can change it totrue
to enable authentication.trustStorePath
The path of the TrustStore file. This attribute is only needed if
clientAuth
istrue
.trustStorePassword
The TrustStore’s password.
2.4. Monitoring your AMQ Broker deployment
You can use the AMQ Console dashboard page to monitor the status of AMQ Broker. You can also create your own dashboards to display the real-time charts, diagrams, and metrics most important to you.
2.4.1. Viewing a dashboard
Dashboards provide you with real-time data about your AMQ Broker environment.
Procedure
In AMQ Console, click the Dashboard tab.
The
Monitor
dashboard appears, displaying real-time data about hawtio.- To switch to a different dashboard, click the dashboard tab.
2.4.2. Creating a new dashboard
Dashboards contain widgets, each of which can display a chart, diagram, or metrics. You can create as many dashboards as needed.
Procedure
- In AMQ Console, click the Dashboard tab.
On the navigation bar, click Manage.
NoteThe
Manage
page appears displaying a list of existing dashboards.Do one of the following:
To… Do this… Create a new, blank dashboard
Click Create.
Create a dashboard similar to an existing dashboard
- Click the checkbox next to an existing dashboard.
- Click Duplicate.
To change the name of the dashboard:
- Hover over the dashboard name and click the pencil icon ( ).
- Enter a new name for the dashboard and then click the checkmark icon ( ).
2.4.3. Creating AMQ Broker dashboards
You can create new dashboards to display real-time data for AMQ Broker.
2.4.4. Adding AMQ Broker data to the AMQ Console dashboard
Add any of the available queue and topic charts to a dashboard.
Procedure
- Click the Artemis tab.
On the navigation bar, click the add icon ( ).
The
Dashboard
tab appears, displaying a list of available dashboards.- Select the dashboard (or dashboards) which you want the chart to appear, and then click Add View To Dashboard. The chart is added to the dashboards you selected.
2.4.5. Changing the layout of a dashboard
Dashboards contain widgets, which display metrics, diagrams, and charts. You can change the way these widgets are displayed on a dashboard.
To… | Do this… |
---|---|
Move or rearrange widgets | Click and drag a widget to a new position on the dashboard. |
Change the title of a widget |
|
Resize a widget | In the bottom-right corner of the widget, click and drag the resize icon ( ). |
Remove a widget from the dashboard | In the widget’s title bar, click the close icon ( ). |
2.5. Managing AMQ Broker
You can use AMQ Console to view important information about AMQ Broker brokers and manage the following resources:
- Incoming network connections (acceptors)
- Addresses
- Queues
2.5.1. Viewing details about the broker
View configuration properties and their values to see how the broker is configured.
Procedure
On the Artemis tab, in the folder tree, select a broker.
A list of configuration properties are displayed for the broker.
Connections
- Displays information about the client connections.
Sessions
- Displays information about the client sessions.
Consumers
- Displays information about the client consumers.
Producers
- Displays information about the session producers.
Addresses
- Displays information about the addresses.
Queues
- Displays information about the queues.
Diagrams
- Displays diagram of all AMQ Broker resources in your topology, including brokers (masters and slaves), producers and consumers, addresses, and queues.
Attributes
- Displays information about the configured attributes.
Operations
- Displays information about the operations that can be executed on the server.
Chart
- Displays real-time data for the selected attributes.
2.5.2. Viewing the broker diagram
You can view a diagram of all AMQ Broker resources in your topology, including brokers (masters and slaves), producers and consumers, addresses, and queues.
Procedure
On the Artemis tab, click Diagram.
This example shows three brokers with 10 queues.
- To change what objects are displayed on the diagram, click the View drop-down and select the items that you want to be displayed.
2.5.3. Viewing acceptors
You can view details about the acceptors configured for the broker.
Procedure
- On the Artemis tab, in the folder tree, expand the acceptors folder.
Click an acceptor to view details about how it is configured.
This example shows the configuration properties for the
amqp
acceptor, which is the default acceptor provided for the AMQP protocol:
2.5.4. Managing addresses and queues
An address represents a messaging endpoint. Within the configuration, a typical address is given a unique name.
A queue is associated with an address. There can be multiple queues per address. Once an incoming message is matched to an address, the message is sent on to one or more of its queues, depending on the routing type configured. Queues can be configured to be automatically created and deleted.
2.5.4.1. Creating addresses
A typical address is given a unique name, 0 or more queues, and a routing type.
A routing type determines how messages are sent to the queues associated with an address. Addresses can be configured with two different routing types.
If you want your messages routed to… | Use this routing type… |
A single queue within the matching address, in a point-to-point manner. | Anycast |
Every queue within the matching address, in a publish-subscribe manner. | Multicast |
You can create and configure addresses and queues, and then delete them when they are no longer in use.
Procedure
- In the folder tree, select a broker.
On the navigation bar, click drop-down icon, and then click Create.
A page appears for creating an address.
Complete the following fields:
Address name
- The routing name of the address.
Routing type
- Select one of the following options:
Multicast
- Messages sent to this address will be distributed to all subscribers in a publish-subscribe manner.
Anycast
- Messages sent to this address will be distributed to only one subscriber in a point-to-point manner.
Both
- Enables you to define more than one routing type per address. This typically results in an anti-pattern and is therefore not recommended.
NoteIf an address does use both routing types, however, and the client does not show a preference for either one, the broker typically defaults to the
anycast
routing type. The one exception is when the client uses the MQTT protocol. In that case, the default routing type ismulticast
.- Click Create Address.
2.5.4.2. Sending messages to an address
The following procedure outlines the steps required to send a message to an address.
Procedure
- In the folder tree, select an address.
On the navigation bar, click drop-down icon, and then click Send.
A page appears for you to compose the message.
- If necessary, click the Header button to add message header information.
- Enter the message body.
- In the Payload format drop-down, select an option for the format of the message body, and then click Auto format. The message body is formatted in a human-readable style for the format you selected.
- Click Send message. The message is sent.
- To send additional messages, change any of the information you entered, and then click Send message.
2.5.4.3. Creating queues
Queues provide a channel between a producer and a consumer.
Prerequisites
- The address to which you want to bind the queue must exist.
Procedure
- In the folder tree, select the address to which you want to bind the queue.
On the navigation bar, click drop-down icon, and then click Create.
A page appears for you to create the queue.
Complete the following fields:
Queue name
- A unique name for the queue.
Routing type
- Select one of the following options:
Multicast
- Messages sent to this address will be distributed to all queues bound to the address.
Anycast
- Only one queue bound to the parent address will receive a copy of the message. Messages will be distributed evenly among all of the queues bound to the address.
Durable
- If you select this option, the queue and its messages will be persistent.
Filter
- The username to be used when connecting to the broker.
Max Consumers
- The maximum number of consumers that can access the queue at a given time.
Purge when no consumers
- If selected, the queue will be purged when no consumers are connected.
Click Create Queue.
The queue is created. You can access it in the folder tree under the address to which it is bound. Queues for an address are organized into a
Queues
folder. Within theQueues
folder, queues are further organized by routing type (MULTICAST
andANYCAST
).In this example, the
clusterQueue
queue is located within theclusterQueue
address:
2.5.4.4. Checking the status of a queue
Charts provide a real-time view of the status of a queue on a broker.
Procedure
In the folder tree, navigate to a queue.
To view a chart for multiple queues for an address, select the
ANYCAST
orMULTICAST
folder that contains the queues.On the navigation bar, click drop-down icon, and then click Chart.
A chart is displayed showing real-time data for all of the queue’s attributes.
If necessary, select different criteria for the chart:
- On the navigation bar, click drop-down icon, and then click Edit Chart.
-
In the
Attributes
list, select one or more attributes that you want to include in the chart. To select multiple attributes, press and hold the Ctrl key and select each attribute. - Click the View Chart button. The chart is displayed based on the criteria you selected.
2.5.4.5. Browsing queues
Browsing a queue displays all of the messages in the queue. You can also filter and sort the list to find specific messages.
Procedure
In the folder tree, navigate to a queue.
Queues are located within the address to which they are bound.
On the navigation bar, click drop-down icon, and then click Browse.
The messages in the queue are displayed. By default, the first 200 messages are displayed.
To browse for a specific message or group of messages, do one of the following:
To… Do this… Filter the list of messages
In the
Filter messages
text field, enter a filter criteria and then press Enter.Sort the list of messages
In the list of messages, click a column header. To sort the messages in descending order, click the header a second time.
To view the content of a message, click the message ID.
You can view the message header, properties, and body.
2.5.4.6. Sending messages to a queue
After creating a queue, you can send a message to it. The following procedure outlines the steps required to send a message to an existing queue.
Procedure
- In the folder tree, select the queue to which you want to send the message.
On the navigation bar, click drop-down icon, and then click Send.
A page appears for you to compose the message.
- If necessary, click the Header button to add message header information.
- Enter the message body.
- In the Payload format drop-down, select an option for the format of the message body, and then click Auto format. The message body is formatted in a human-readable style for the format you selected.
- Click Send message. The message is sent.
- To send additional messages, change any of the information you entered, and click Send message.
2.5.4.7. Resending messages to a queue
You can resend previously sent messages.
Procedure
- Browse for the message you want to resend.
- Click the checkbox next to the message that you want to resend.
- Click the Resend button. The message is displayed.
- Update the message header and body as needed, and then click Send message.
2.5.4.8. Moving messages to a different queue
You can move one or more messages in a queue to a different queue.
Procedure
- Browse for the messages you want to move.
- Click the checkbox next to each message that you want to move.
Click the Move button.
A confirmation dialog box appears.
- Enter the name of the queue to which you want to move the messages, and then click Move.
2.5.4.9. Deleting queues
You can delete a queue or purge all of the messages from a queue.
Procedure
- Browse for the queue you want to delete or purge.
Do one of the following:
To… Do this… Delete a message from the queue
- Click the checkbox next to each message you want to delete.
- Click the Delete button.
Purge all messages from the queue
- On the navigation bar, click Delete.
- Click the Purge queue button.
Delete the queue
- On the navigation bar, click Delete.
- Click the Delete queue button.
Chapter 3. Using command line interface
The command line interface (CLI) allows interaction with the message broker by use of an interactive terminal. Manage broker actions, configure messages, and enter useful commands by using the CLI.
The command line interface (CLI) allows users and roles to be added to files, by using an interactive process.
3.1. Starting broker instances
A broker instance is a directory containing all the configuration and runtime data, such as logs and data files. The runtime data is associated with a unique broker process.
You can start a broker in the foreground by using the artemis
script, as a Linux service, or as a Windows service.
3.1.1. Starting the broker instance
After the broker instance is created, you use the artemis run
command to start it.
Procedure
Switch to the user account you created during installation.
$ su - amq-broker
Use the
artemis run
command to start the broker instance.$ /var/opt/amq-broker/mybroker/bin/artemis run __ __ ____ ____ _ /\ | \/ |/ __ \ | _ \ | | / \ | \ / | | | | | |_) |_ __ ___ | | _____ _ __ / /\ \ | |\/| | | | | | _ <| '__/ _ \| |/ / _ \ '__| / ____ \| | | | |__| | | |_) | | | (_) | < __/ | /_/ \_\_| |_|\___\_\ |____/|_| \___/|_|\_\___|_| Red Hat JBoss AMQ 7.2.1.GA 10:53:43,959 INFO [org.apache.activemq.artemis.integration.bootstrap] AMQ101000: Starting ActiveMQ Artemis Server 10:53:44,076 INFO [org.apache.activemq.artemis.core.server] AMQ221000: live Message Broker is starting with configuration Broker Configuration (clustered=false,journalDirectory=./data/journal,bindingsDirectory=./data/bindings,largeMessagesDirectory=./data/large-messages,pagingDirectory=./data/paging) 10:53:44,099 INFO [org.apache.activemq.artemis.core.server] AMQ221012: Using AIO Journal ...
The broker starts and displays log output with the following information:
- The location of the transaction logs and cluster configuration.
- The type of journal being used for message persistence (AIO in this case).
The URI(s) that can accept client connections.
By default, port 61616 can accept connections from any of the supported protocols (CORE, MQTT, AMQP, STOMP, HORNETQ, and OPENWIRE). There are separate, individual ports for each protocol as well.
- The web console is available at http://localhost:8161.
- The Jolokia service (JMX over REST) is available at http://localhost:8161/jolokia.
3.1.2. Starting a broker as a Linux service
If the broker is installed on Linux, you can run it as a service.
Procedure
-
Create a new
amq-broker.service
file in the/etc/systemd/system/
directory. Copy the following text into the file.
Modify the path and user fields according to the information provided during the broker instance creation. In the example below, the user
amq-broker
starts the broker service installed under the/var/opt/amq-broker/mybroker/
directory.[Unit] Description=AMQ Broker After=syslog.target network.target [Service] ExecStart=/var/opt/amq-broker/mybroker/bin/artemis run Restart=on-failure User=amq-broker Group=amq-broker # A workaround for Java signal handling SuccessExitStatus=143 [Install] WantedBy=multi-user.target
- Open a terminal.
Enable the broker service using the following command:
sudo systemctl enable amq-broker
Run the broker service using the following command:
sudo systemctl start amq-broker
3.1.3. Starting a broker as a Windows service
If the broker is installed on Windows, you can run it as a service.
Procedure
- Open a command prompt to enter the commands
Install the broker as a service with the following command:
<broker-instance-dir>\bin\artemis-service.exe install
Start the service by using the following command:
<broker-instance-dir>\bin\artemis-service.exe start
(Optional) Uninstall the service:
<broker-instance-dir>\bin\artemis-service.exe uninstall
3.2. Stopping broker instances
Stop the broker instance manually or configure the broker to shutdown gracefully.
3.2.1. Stopping a broker instance
Stop the broker manually by issuing the stop
command. Immediately after the command is entered, all connections to the broker are forcefully stopped and the shutdown process begins.
Procedure
Stop the broker.
If you are running the broker on Linux, issue the following command:
<broker-instance-dir>\bin\artemis stop
If you are running the broker on Windows as a service, issue the following command:
<broker-instance-dir>\bin\artemis-service.exe stop
3.2.2. Stopping a broker instance gracefully
A manual shutdown forcefully disconnects all clients after a stop
command is entered. As an alternative, configure the broker to shut down gracefully by using the graceful-shutdown-enabled
configuration element.
When graceful-shutdown-enabled
is set to true
, no new client connections are allowed after a stop
command is entered. However, existing connections are allowed to close on the client-side before the shutdown process is started. The default value for graceful-shutdown-enabled
is false
.
Use the graceful-shutdown-timeout
configuration element to set a length of time, in milliseconds, for clients to disconnect before connections are forcefully closed from the broker side. After all connections are closed, the shutdown process is started. One advantage of using graceful-shutdown-timeout
is that it prevents client connections from delaying a shutdown. The default value for graceful-shutdown-timeout
is -1
, meaning the broker waits indefinitely for clients to disconnect.
The following procedure demonstrates how to configure a graceful shutdown that uses a timeout.
Procedure
-
Open the configuration file
<broker-instance-dir>\etc\broker.xml
. Add the
graceful-shutdown-enabled
configuration element and set the value totrue
.<configuration> <core> ... <graceful-shutdown-enabled> true </graceful-shutdown-enabled> ... </core> </configuration>
Add the
graceful-shutdown-timeout
configuration element and set a value for the timeout in milliseconds. In the following example, client connections are forcefully closed 30 seconds (30000
milliseconds) after thestop
command is issued.<configuration> <core> ... <graceful-shutdown-enabled> true </graceful-shutdown-enabled> <graceful-shutdown-timeout> 30000 </graceful-shutdown-timeout> ... </core> </configuration>
3.3. Auditing messages by intercepting packets
Intercept packets entering or exiting the broker, to audit packets or filter messages. Interceptors change the packets that they intercept. This makes interceptors powerful, but also potentially dangerous.
Develop interceptors to meet your business requirements. Interceptors are protocol specific and must implement the appropriate interface.
Interceptors must implement the intercept()
method, which returns a boolean value. If the value is true
, the message packet continues onward. If false
, the process is aborted, no other interceptors are called, and the message packet is not processed further.
3.3.1. Creating interceptors
Interceptors can change the packets they intercept. You can create your own incoming and outgoing interceptors. All interceptors are protocol specific and are called for any packet entering or exiting the server respectively. This allows you to create interceptors to meet business requirements such as auditing packets.
Interceptors and their dependencies must be placed in the Java classpath of the broker. You can use the <broker-instance-dir>/lib
directory because it is part of the classpath by default.
The following examples demonstrate how to create an interceptor that checks the size of each packet passed to it.
The examples implement a specific interface for each protocol.
Procedure
Implement the appropriate interface and override its
intercept()
method.If you are using the AMQP protocol, implement the
org.apache.activemq.artemis.protocol.amqp.broker.AmqpInterceptor
interface.package com.example; import org.apache.activemq.artemis.protocol.amqp.broker.AMQPMessage; import org.apache.activemq.artemis.protocol.amqp.broker.AmqpInterceptor; import org.apache.activemq.artemis.spi.core.protocol.RemotingConnection; public class MyInterceptor implements AmqpInterceptor { private final int ACCEPTABLE_SIZE = 1024; @Override public boolean intercept(final AMQPMessage message, RemotingConnection connection) { int size = message.getEncodeSize(); if (size <= ACCEPTABLE_SIZE) { System.out.println("This AMQPMessage has an acceptable size."); return true; } return false; } }
If you are using the Core protocol, your interceptor must implement the
org.apache.artemis.activemq.api.core.Interceptor
interface.package com.example; import org.apache.artemis.activemq.api.core.Interceptor; import org.apache.activemq.artemis.core.protocol.core.Packet; import org.apache.activemq.artemis.spi.core.protocol.RemotingConnection; public class MyInterceptor implements Interceptor { private final int ACCEPTABLE_SIZE = 1024; @Override boolean intercept(Packet packet, RemotingConnection connection) throws ActiveMQException { int size = packet.getPacketSize(); if (size <= ACCEPTABLE_SIZE) { System.out.println("This Packet has an acceptable size."); return true; } return false; } }
If you are using the MQTT protocol, implement the
org.apache.activemq.artemis.core.protocol.mqtt.MQTTInterceptor
interface.package com.example; import org.apache.activemq.artemis.core.protocol.mqtt.MQTTInterceptor; import io.netty.handler.codec.mqtt.MqttMessage; import org.apache.activemq.artemis.spi.core.protocol.RemotingConnection; public class MyInterceptor implements Interceptor { private final int ACCEPTABLE_SIZE = 1024; @Override boolean intercept(MqttMessage mqttMessage, RemotingConnection connection) throws ActiveMQException { byte[] msg = (mqttMessage.toString()).getBytes(); int size = msg.length; if (size <= ACCEPTABLE_SIZE) { System.out.println("This MqttMessage has an acceptable size."); return true; } return false; } }
If you are using the Stomp protocol, implement the
org.apache.activemq.artemis.core.protocol.stomp.StompFrameInterceptor
interface.package com.example; import org.apache.activemq.artemis.core.protocol.stomp.StompFrameInterceptor; import org.apache.activemq.artemis.core.protocol.stomp.StompFrame; import org.apache.activemq.artemis.spi.core.protocol.RemotingConnection; public class MyInterceptor implements Interceptor { private final int ACCEPTABLE_SIZE = 1024; @Override boolean intercept(StompFrame stompFrame, RemotingConnection connection) throws ActiveMQException { int size = stompFrame.getEncodedSize(); if (size <= ACCEPTABLE_SIZE) { System.out.println("This StompFrame has an acceptable size."); return true; } return false; } }
3.3.2. Configuring the broker to use interceptors
Prerequisites
-
Create an interceptor class and add it (and its dependencies) to the Java classpath of the broker. You can use the
<broker-instance-dir>/lib
directory since it is part of the classpath by default.
Procedure
-
Open
<broker-instance-dir>/etc/broker.xml
Configure the broker to use an interceptor by adding configuration to
_<broker-instance-dir>/etc/broker.xml
If the interceptor is intended for incoming messages, add its
class-name
to the list ofremoting-incoming-interceptors
.<configuration> <core> ... <remoting-incoming-interceptors> <class-name>org.example.MyIncomingInterceptor</class-name> </remoting-incoming-interceptors> ... </core> </configuration>
If the interceptor is intended for outgoing messages, add its
class-name
to the list ofremoting-outgoing-interceptors
.<configuration> <core> ... <remoting-outgoing-interceptors> <class-name>org.example.MyOutgoingInterceptor</class-name> </remoting-outgoing-interceptors> </core> </configuration>
3.3.3. Interceptors on the client side
Clients can use interceptors to intercept packets either sent by the client to the server or by the server to the client. If the broker-side interceptor returns a false
value, then no other interceptors are called and the client does not process the packet further. This process happens transparently, unless an outgoing packet is sent in a blocking
fashion. In this case, an ActiveMQException
is thrown to the caller. The ActiveMQException
thrown contains the name of the interceptor that returned the false
value.
On the server, the client interceptor classes and their dependencies must be added to the Java classpath of the client, to be properly instantiated and invoked.
3.4. Command line tools
AMQ Broker includes a set of command line interface (CLI) tools, so you can manage your messaging journal. The table below lists the name for each tool and its corresponding description.
Tool | Description |
---|---|
address |
Addresses tool groups (create/delete/update/show) (example |
browser | Browses messages on an instance. |
consumer | Consumes messages on an instance. |
data | Prints reports about journal records and compacts the data. |
decode | Imports the internal journal format from encode. |
encode | Shows an internal format of the journal encoded to String. |
exp | Exports the message data using a special and independent XML format. |
help | Displays help information. |
imp |
Imports the journal to a running broker using the output provided by |
kill | Kills a broker instance started with --allow-kill. |
mask | Masks a password and prints it out. |
perf-journal | Calculates the journal-buffer timeout you should use with the current data folder. |
queue |
Queues tool groups (create/delete/update/stat) (example |
run | Runs the broker instance. |
stop | Stops the broker instance. |
user |
Default file-based user managament (add/rm/list/reset) (example |
For a full list of commands available for each tool, use the help
parameter followed by the tool’s name. For instance, in the example below, the CLI output lists all the commands available to the data
tool after the user enters the command ./artemis help data
.
$ ./artemis help data NAME artemis data - data tools group (print|imp|exp|encode|decode|compact) (example ./artemis data print) SYNOPSIS artemis data artemis data compact [--broker <brokerConfig>] [--verbose] [--paging <paging>] [--journal <journal>] [--large-messages <largeMessges>] [--bindings <binding>] artemis data decode [--broker <brokerConfig>] [--suffix <suffix>] [--verbose] [--paging <paging>] [--prefix <prefix>] [--file-size <size>] [--directory <directory>] --input <input> [--journal <journal>] [--large-messages <largeMessges>] [--bindings <binding>] artemis data encode [--directory <directory>] [--broker <brokerConfig>] [--suffix <suffix>] [--verbose] [--paging <paging>] [--prefix <prefix>] [--file-size <size>] [--journal <journal>] [--large-messages <largeMessges>] [--bindings <binding>] artemis data exp [--broker <brokerConfig>] [--verbose] [--paging <paging>] [--journal <journal>] [--large-messages <largeMessges>] [--bindings <binding>] artemis data imp [--host <host>] [--verbose] [--port <port>] [--password <password>] [--transaction] --input <input> [--user <user>] artemis data print [--broker <brokerConfig>] [--verbose] [--paging <paging>] [--journal <journal>] [--large-messages <largeMessges>] [--bindings <binding>] COMMANDS With no arguments, Display help information print Print data records information (WARNING: don't use while a production server is running) ...
You can use the help
parameter for more information on how to execute each of the commands. For example, the CLI lists more information about the data print
command after the user enters the ./artemis help data print
.
$ ./artemis help data print NAME artemis data print - Print data records information (WARNING: don't use while a production server is running) SYNOPSIS artemis data print [--bindings <binding>] [--journal <journal>] [--paging <paging>] OPTIONS --bindings <binding> The folder used for bindings (default ../data/bindings) --journal <journal> The folder used for messages journal (default ../data/journal) --paging <paging> The folder used for paging (default ../data/paging)
Chapter 4. Using the management API
AMQ Broker has an extensive management API, which you can use to modify a broker’s configuration, create new resources (for example, addresses and queues), inspect these resources (for example, how many messages are currently held in a queue), and interact with them (for example, to remove messages from a queue).
In addition, clients can use the management API to manage the broker and subscribe to management notifications.
4.1. Methods for managing AMQ Broker using the management API
There are two ways to use the management API to manage the broker:
- Using JMX — JMX is the standard way to manage Java applications
- Using the JMS API — management operations are sent to the broker using JMS messages and the AMQ JMS client
Although there are two different ways to manage the broker, each API supports the same functionality. If it is possible to manage a resource using JMX it is also possible to achieve the same result by using JMS messages and the AMQ JMS client.
This choice depends on your particular requirements, application settings, and environment. Regardless of the way you invoke management operations, the management API is the same.
For each managed resource, there exists a Java interface describing what can be invoked for this type of resource. The broker exposes its managed resources in the org.apache.activemq.artemis.api.core.management
package. The way to invoke management operations depends on whether JMX messages or JMS messages and the AMQ JMS client are used.
Some management operations require a filter
parameter to choose which messages are affected by the operation. Passing null
or an empty string means that the management operation will be performed on all messages.
4.2. Managing AMQ Broker using JMX
You can use Java Management Extensions (JMX) to manage a broker. The management API is exposed by the broker using MBeans interfaces. The broker registers its resources with the domain org.apache.activemq
.
For example, the ObjectName
to manage a queue named exampleQueue
is:
org.apache.activemq.artemis:broker="__BROKER_NAME__",component=addresses,address="exampleQueue",subcomponent=queues,routingtype="anycast",queue="exampleQueue"
The MBean is:
org.apache.activemq.artemis.api.management.QueueControl
The MBean’s ObjectName
is built using the helper class org.apache.activemq.artemis.api.core.management.ObjectNameBuilder
. You can also use jconsole to find the ObjectName
of the MBeans you want to manage.
Managing the broker using JMX is identical to management of any Java applications using JMX. It can be done by reflection or by creating proxies of the MBeans.
4.2.1. Configuring JMX management
By default, JMX is enabled to manage the broker. You can enable or disable JMX management by setting the jmx-management-enabled
property in the broker.xml
configuration file.
Procedure
-
Open the
<broker-instance-dir>/etc/broker.xml
configuration file. Set
<jmx-management-enabled>
.<jmx-management-enabled>true</jmx-management-enabled>
If JMX is enabled, the broker can be managed locally using
jconsole
.NoteRemote connections to JMX are not enabled by default for security reasons.
If you want to manage multiple brokers from the same
MBeanServer
, configure the JMX domain for each of the brokers.By default, the broker uses the JMX domain
org.apache.activemq.artemis
.<jmx-domain>my.org.apache.activemq</jmx-domain>
NoteIf you are using AMQ Broker on a Windows system, system properties must be set in
artemis
, orartemis.cmd
. A shell script is located under<install-dir>/bin
.
Additional resources
- For more information on configuring the broker for remote management, see Oracle’s Java Management Guide.
4.2.2. MBeanServer configuration
When the broker runs in standalone mode, it uses the Java Virtual Machine’s Platform MBeanServer
to register its MBeans. By default, Jolokia is also deployed to allow access to the MBean server using REST.
4.2.3. How JMX is exposed with Jolokia
By default, AMQ Broker ships with the Jolokia HTTP agent deployed as a web application. Jolokia is a remote JMX over HTTP bridge that exposes MBeans.
To use Jolokia, the user must belong to the role defined by the hawtio.role
system property in the <broker-instance-dir>/etc/artemis.profile
configuration file. By default, this role is amq
.
Example 4.1. Using Jolokia to query the broker’s version
This example uses a Jolokia REST URL to find the version of a broker. The Origin
flag should specify the domain name or DNS host name for the broker server. In addition, the value you specify for Origin
must correspond to an entry for <allow-origin>
in your Jolokia Cross-Origin Resource Sharing (CORS) specification.
$ curl http://admin:admin@localhost:8161/console/jolokia/read/org.apache.activemq.artemis:broker=\"0.0.0.0\"/Version -H "Origin: mydomain.com" {"request":{"mbean":"org.apache.activemq.artemis:broker=\"0.0.0.0\"","attribute":"Version","type":"read"},"value":"2.4.0.amq-710002-redhat-1","timestamp":1527105236,"status":200}
Additional resources
- For more information on using a JMX-HTTP bridge, see the Jolokia documentation.
- For more information on assigning a user to a role, see Adding Users.
- For more information on specifying Jolokia Cross-Origin Resource Sharing (CORS), see section 4.1.5 of Security.
4.2.4. Subscribing to JMX management notifications
If JMX is enabled in your environment, you can subscribe to management notifications.
Procedure
-
Subscribe to
ObjectName org.apache.activemq.artemis:broker="<broker-name>"
.
Additional resources
- For more information about management notifications, see Section 4.5, “Management notifications”.
4.3. Managing AMQ Broker using the JMS API
The Java Message Service (JMS) API allows you to create, send, receive, and read messages. You can use JMS and the AMQ JMS client to manage brokers.
4.3.1. Configuring broker management using JMS messages and the AMQ JMS Client
To use JMS to manage a broker, you must first configure the broker’s management address with the manage
permission.
Procedure
-
Open the
<broker-instance-dir>/etc/broker.xml
configuration file. Add the
<management-address>
element, and specify a management address.By default, the management address is
queue.activemq.management
. You only need to specify a different address if you do not want to use the default.<management-address>my.management.address</management-address>
Provide the management address with the
manage
user permission type.This permission type enables the management address to receive and handle management messages.
<security-setting-match="queue.activemq.management"> <permission-type="manage" roles="admin"/> </security-setting>
4.3.2. Managing brokers using the JMS API and AMQ JMS Client
To invoke management operations using JMS messages, the AMQ JMS client must instantiate the special management queue.
Procedure
-
Create a
QueueRequestor
to send messages to the management address and receive replies. -
Create a
Message
. -
Use the helper class
org.apache.activemq.artemis.api.jms.management.JMSManagementHelper
to fill the message with the management properties. -
Send the message using the
QueueRequestor
. -
Use the helper class
org.apache.activemq.artemis.api.jms.management.JMSManagementHelper
to retrieve the operation result from the management reply.
Example 4.2. Viewing the number of messages in a queue
This example shows how to use the JMS API to view the number of messages in the JMS queue exampleQueue
:
Queue managementQueue = ActiveMQJMSClient.createQueue("activemq.management"); QueueSession session = ... QueueRequestor requestor = new QueueRequestor(session, managementQueue); connection.start(); Message message = session.createMessage(); JMSManagementHelper.putAttribute(message, "queue.exampleQueue", "messageCount"); Message reply = requestor.request(message); int count = (Integer)JMSManagementHelper.getResult(reply); System.out.println("There are " + count + " messages in exampleQueue");
4.4. Management operations
Whether you are using JMX or JMS messages to manage AMQ Broker, you can use the same API management operations. Using the management API, you can manage brokers, addresses, and queues.
4.4.1. Broker management operations
You can use the management API to manage your brokers.
- Listing, creating, deploying, and destroying queues
A list of deployed queues can be retrieved using the
getQueueNames()
method.Queues can be created or destroyed using the management operations
createQueue()
,deployQueue()
, ordestroyQueue()
on theActiveMQServerControl
(with theObjectName
org.apache.activemq.artemis:broker="BROKER_NAME"
or the resource nameserver
).createQueue
will fail if the queue already exists whiledeployQueue
will do nothing.- Pausing and resuming queues
-
The
QueueControl
can pause and resume the underlying queue. When a queue is paused, it will receive messages but will not deliver them. When it is resumed, it will begin delivering the queued messages, if any. - Listing and closing remote connections
Retrieve a client’s remote addresses by using
listRemoteAddresses()
. It is also possible to close the connections associated with a remote address using thecloseConnectionsForAddress()
method.Alternatively, list connection IDs using
listConnectionIDs()
and list all the sessions for a given connection ID usinglistSessions()
.- Managing transactions
In case of a broker crash, when the broker restarts, some transactions might require manual intervention. Use the the following methods to help resolve issues you encounter.
List the transactions which are in the prepared states (the transactions are represented as opaque Base64 Strings) using the
listPreparedTransactions()
method lists.Commit or rollback a given prepared transaction using
commitPreparedTransaction()
orrollbackPreparedTransaction()
to resolve heuristic transactions.List heuristically completed transactions using the
listHeuristicCommittedTransactions()
andlistHeuristicRolledBackTransactions
methods.- Enabling and resetting message counters
Enable and disable message counters using the
enableMessageCounters()
ordisableMessageCounters()
method.Reset message counters by using the
resetAllMessageCounters()
andresetAllMessageCounterHistories()
methods.- Retrieving broker configuration and attributes
-
The
ActiveMQServerControl
exposes the broker’s configuration through all its attributes (for example,getVersion()
method to retrieve the broker’s version, and so on). - Listing, creating, and destroying Core Bridge and diverts
List deployed Core Bridge and diverts using the
getBridgeNames()
andgetDivertNames()
methods respectively.Create or destroy using bridges and diverts using
createBridge()
anddestroyBridge()
orcreateDivert()
anddestroyDivert()
on theActiveMQServerControl
(with theObjectName
org.apache.activemq.artemis:broker="BROKER_NAME"
or the resource nameserver
).- Stopping the broker and forcing failover to occur with any currently attached clients
Use the
forceFailover()
on theActiveMQServerControl
(with theObjectName
org.apache.activemq.artemis:broker="BROKER_NAME"
or the resource nameserver
)NoteBecause this method actually stops the broker, you will likely receive an error. The exact error depends on the management service you used to call the method.
4.4.2. Address management operations
You can use the management API to manage addresses.
Manage addresses using the AddressControl
class with ObjectName
org.apache.activemq.artemis:broker="<broker-name>", component=addresses,address="<address-name>"
or the resource name address.<address-name>
.
Modify roles and permissions for an address using the addRole()
or removeRole()
methods. You can list all the roles associated with the queue with the getRoles()
method.
4.4.3. Queue management operations
You can use the management API to manage queues.
The core management API deals with queues. The QueueControl
class defines the queue management operations (with the ObjectName
,org.apache.activemq.artemis:broker="<broker-name>",component=addresses,address="<bound-address>",subcomponent=queues,routing-type="<routing-type>",queue="<queue-name>"
or the resource name queue.<queue-name>
).
Most of the management operations on queues take either a single message ID (for example, to remove a single message) or a filter (for example, to expire all messages with a given property).
- Expiring, sending to a dead letter address, and moving messages
Expire messages from a queue using the
expireMessages()
method. If an expiry address is defined, messages will be sent to it, otherwise they are discarded. The queue’s expiry address can be set with thesetExpiryAddress()
method.Send messages to a dead letter address with the
sendMessagesToDeadLetterAddress()
method. It returns the number of messages which are sent to the dead letter address. If a dead letter address is not defined, messages are removed from the queue and discarded. The queue’s dead letter address can be set with thesetDeadLetterAddress()
method.Move messages from one queue to another by using the
moveMessages()
method.- Listing and removing messages
List messages from a queue using the
listMessages()
method. It will return an array ofMap
, oneMap
for each message.Remove messages from a queue using the
removeMessages()
method, which returns aboolean
for the single message ID variant or the number of removed messages for the filter variant. This method takes afilter
argument to remove only filtered messages. Setting the filter to an empty string will in effect remove all messages.- Counting messages
-
The number of messages in a queue is returned by the
getMessageCount()
method. Alternatively, thecountMessages()
will return the number of messages in the queue which match a given filter. - Changing message priority
-
The message priority can be changed by using the
changeMessagesPriority()
method which returns aboolean
for the single message ID variant or the number of updated messages for the filter variant. - Message counters
-
Message counters can be listed for a queue with the
listMessageCounter()
andlistMessageCounterHistory()
methods (see Section 4.6, “Using message counters”). The message counters can also be reset for a single queue using theresetMessageCounter()
method. - Retrieving the queue attributes
-
The
QueueControl
exposes queue settings through its attributes (for example,getFilter()
to retrieve the queue’s filter if it was created with one,isDurable()
to know whether the queue is durable, and so on). - Pausing and resuming queues
-
The
QueueControl
can pause and resume the underlying queue. When a queue is paused, it will receive messages but will not deliver them. When it is resumed, it will begin delivering the queued messages, if any.
4.4.4. Remote resource management operations
You can use the management API to start and stop a broker’s remote resources (acceptors, diverts, bridges, and so on) so that the broker can be taken offline for a given period of time without stopping completely.
- Acceptors
-
Start or stop an acceptor using the
start()
or.stop()
method on theAcceptorControl
class (with theObjectName
org.apache.activemq.artemis:broker="<broker-name>",component=acceptors,name="<acceptor-name>"
or the resource nameacceptor.<address-name>
). Acceptor parameters can be retrieved using theAcceptorControl
attributes. See Network Connections: Acceptors and Connectors for more information about Acceptors. - Diverts
-
Start or stop a divert using the
start()
orstop()
method on theDivertControl
class (with theObjectName
org.apache.activemq.artemis:broker="<broker-name>",component=diverts,name="<divert-name>"
or the resource namedivert.<divert-name>
). Divert parameters can be retrieved using theDivertControl
attributes. - Bridges
-
Start or stop a bridge using the
start()
(resp.stop()
) method on theBridgeControl
class (with theObjectName
org.apache.activemq.artemis:broker="<broker-name>",component=bridge,name="<bridge-name>"
or the resource namebridge.<bridge-name>
). Bridge parameters can be retrieved using theBridgeControl
attributes. - Broadcast groups
-
Start or stop a broadcast group using the
start()
orstop()
method on theBroadcastGroupControl
class (with theObjectName
org.apache.activemq.artemis:broker="<broker-name>",component=broadcast-group,name="<broadcast-group-name>"
or the resource namebroadcastgroup.<broadcast-group-name>
). Broadcast group parameters can be retrieved using theBroadcastGroupControl
attributes. See Broker discovery methods for more information. - Discovery groups
-
Start or stop a discovery group using the
start()
orstop()
method on theDiscoveryGroupControl
class (with theObjectName
org.apache.activemq.artemis:broker="<broker-name>",component=discovery-group,name="<discovery-group-name>"
or the resource namediscovery.<discovery-group-name>
). Discovery groups parameters can be retrieved using theDiscoveryGroupControl
attributes. See Broker discovery methods for more information. - Cluster connections
-
Start or stop a cluster connection using the
start()
orstop()
method on theClusterConnectionControl
class (with theObjectName
org.apache.activemq.artemis:broker="<broker-name>",component=cluster-connection,name="<cluster-connection-name>"
or the resource nameclusterconnection.<cluster-connection-name>
). Cluster connection parameters can be retrieved using theClusterConnectionControl
attributes. See Creating a broker cluster for more information.
4.5. Management notifications
Below is a list of all the different kinds of notifications as well as which headers are on the messages. Every notification has a _AMQ_NotifType
(value noted in parentheses) and _AMQ_NotifTimestamp
header. The time stamp is the unformatted result of a call to java.lang.System.currentTimeMillis()
.
Notification type | Headers |
---|---|
|
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4.6. Using message counters
You use message counters to obtain information about queues over time. This helps you to identify trends that would otherwise be difficult to see.
For example, you could use message counters to determine how a particular queue is being used over time. You could also attempt to obtain this information by using the management API to query the number of messages in the queue at regular intervals, but this would not show how the queue is actually being used. The number of messages in a queue can remain constant because no clients are sending or receiving messages on it, or because the number of messages sent to the queue is equal to the number of messages consumed from it. In both of these cases, the number of messages in the queue remains the same even though it is being used in very different ways.
4.6.1. Types of message counters
Message counters provide additional information about queues on a broker.
count
- The total number of messages added to the queue since the broker was started.
countDelta
- The number of messages added to the queue since the last message counter update.
messageCount
- The current number of messages in the queue.
messageCountDelta
-
The overall number of messages added/removed from the queue since the last message counter update. For example, if
messageCountDelta
is-10
, then 10 messages overall have been removed from the queue. lastAddTimestamp
- The time stamp of the last time a message was added to the queue.
udpateTimestamp
- The time stamp of the last message counter update.
You can combine message counters to determine other meaningful data as well. For example, to know specifically how many messages were consumed from the queue since the last update, you would subtract the messageCountDelta
from countDelta
.
4.6.2. Enabling message counters
Message counters can have a small impact on the broker’s memory; therefore, they are disabled by default. To use message counters, you must first enable them.
Procedure
-
Open the
<broker-instance-dir>/etc/broker.xml
configuration file. Enable message counters.
<message-counter-enabled>true</message-counter-enabled>
Set the message counter history and sampling period.
<message-counter-max-day-history>7</message-counter-max-day-history> <message-counter-sample-period>60000</message-counter-sample-period>
message-counter-max-day-history
-
The number of days the broker should store queue metrics. The default is
10
days. message-counter-sample-period
-
How often (in milliseconds) the broker should sample its queues to collect metrics. The default is
10000
milliseconds (10 seconds).
4.6.3. Retrieving message counters
You can use the management API to retrieve message counters.
Prerequisites
Message counters must be enabled on the broker.
For more information, see Section 4.6.2, “Enabling message counters”.
Procedure
Use the management API to retrieve message counters.
// Retrieve a connection to the broker's MBeanServer. MBeanServerConnection mbsc = ... JMSQueueControlMBean queueControl = (JMSQueueControl)MBeanServerInvocationHandler.newProxyInstance(mbsc, on, JMSQueueControl.class, false); // Message counters are retrieved as a JSON string. String counters = queueControl.listMessageCounter(); // Use the MessageCounterInfo helper class to manipulate message counters more easily. MessageCounterInfo messageCounter = MessageCounterInfo.fromJSON(counters); System.out.format("%s message(s) in the queue (since last sample: %s)\n", messageCounter.getMessageCount(), messageCounter.getMessageCountDelta());
Additional resources
- For more information about message counters, see Section 4.4.3, “Queue management operations”.
Chapter 5. Monitoring broker runtime data using Prometheus
5.1. Overview
To monitor the health and performance of your broker instances, you can use the Prometheus plugin for AMQ Broker to monitor and store broker runtime metrics. Prometheus is software built for monitoring large, scalable systems and storing historical runtime data over an extended time period. The AMQ Broker Prometheus plugin exports the broker runtime metrics to Prometheus format, enabling you to use Prometheus itself to visualize and run queries on the data.
You can also use a graphical tool, such as Grafana, to configure more advanced visualizations and dashboards for the metrics that the Prometheus plugin collects.
For AMQ Broker, the metrics exported to Prometheus format by the plugin are listed below. A description of each metric is exported along with the metric itself.
Broker Metrics
-
address.memory.usage
-
connection.count
-
total.connection.count
Address Metrics
-
routed.message.count
-
unrouted.message.count
Queue Metrics
-
consumer.count
-
delivering.durable.message.count
-
delivering.durable.persistent.size
-
delivering.message.count
-
delivering.persistent.size
-
durable.message.count
-
durable.persistent.size
-
messages.acknowledged
-
messages.added
-
message.count
-
messages.killed
-
messages.expired
-
persistent.size
-
scheduled.durable.message.count
-
scheduled.durable.persistent.size
-
scheduled.message.count
-
scheduled.persistent.size
For higher-level broker metrics that are not listed above, you can calculate these by aggregating lower-level metrics. For example, to calculate total message count, you can aggregate the message.count
metrics from all queues in your broker deployment.
Java Virtual Machine (JVM) memory metrics are also exported to Prometheus format.
5.2. Enabling the Prometheus plugin for AMQ Broker
When you install AMQ Broker, the Prometheus plugin is included in your installation and is already configured for use. However, you need to enable the plugin in your broker configuration.
The following procedure shows you how to enable the Prometheus plugin and start gathering metrics for running broker instances.
Procedure
Copy the Prometheus metrics plugin
.jar
file from your AMQ Broker 7.5 extracted archive to thelib
directory of your broker instance.$ cp amq-broker-7.5.0/lib/artemis-prometheus-metrics-plugin-1.0.0.CR1-redhat-00002.jar BROKER_INSTANCE_DIR/lib
Add the following line to your
broker.xml
configuration file.<metrics-plugin class-name="org.apache.activemq.artemis.core.server.metrics.plugins.ArtemisPrometheusMetricsPlugin"/>
When you have enabled the Prometheus plugin, the plugin starts to gather the metrics listed in the previous section, for any broker that you start.
5.3. Accessing broker runtime data using Prometheus
Prerequisites
- To query and visualize the broker runtime data collected by the Prometheus plugin, you need to install Prometheus. For more information, see Installing Prometheus.
Procedure
-
From your Prometheus installation directory, open the
prometheus.yml
configuration file. -
In the
static_configs
section of the configuration file, change thetargets
element tolocalhost:8161
. This location is where the broker runs its web server. By default,/metrics
is appended to this host name, forming the full path to the metrics stored on the broker web server. To view the broker runtime metrics collected by the Prometheus plugin, open
localhost:8161/metrics
in a web browser.On the resulting web page, you see the current values of the metrics collected by the plugin, based on the queues and addresses that you have configured on the broker. If you have more than one running broker instance in your JVM, you see metrics for each broker.
From your Prometheus installation directory, run Prometheus.
$ ./prometheus
When Prometheus starts, the shell output includes the following line:
component=web, msg=”Start listening for connections” address=0.0.0.0:9090
The preceding line indicates that Prometheus is listening for HTTP traffic on port 9090.
-
To access the Prometheus web console, open
127.0.0.1:9090
in a web browser. In the Prometheus web console, you can use the
Expression
field to create a query on your broker data. The queries you create are based on the Prometheus query language, PromQL. Broker metrics that are available to insert in your query are in theInsert metric
drop-down list.As a simple example, suppose you want to query the message count on the DLQ queue, over time. In this case, select
artemis_message_count
from the metrics drop-down list. Complete your query by specifying the DLQ queue name and address. This example query is shown below.artemis_message_count{address=“DLQ”, queue=“DLQ”}
For more advanced visualizations, you can use regular expressions to create complex queries that overlay several metrics, for example. Or, you can perform mathematical operations on a number of metrics, such as aggregating them. For more information about creating Prometheus queries, see Querying Prometheus.
Revised on 2020-04-22 14:05:31 UTC