JMS server: ActiveMQ

Revision as of 10:16, 25 April 2014 by WikiFreak (talk | contribs)

Manual installation

Installation

Get Apache Active MQ

Get the latest binary version from: http://activemq.apache.org/download.html

Program setup

  • Copy archive to /opt/ directory:
mv apache-activemq-5.9.1-bin.zip /opt/
cd /opt/
  • Unzip and create simlink
unzip apache-activemq-5.9.1-bin.zip
ln -s /opt/apache-activemq-5.9.1/ /opt/activemq/
  • Set executable flag and symlinks
chmod 755 /opt/activemq/bin/activemq
ln -s /opt/activemq/bin/activemq /usr/bin/activemq
ln -s /opt/activemq/bin/activemq /etc/init.d/activemq

Rights adjustments

  • Add non privileged account
adduser -system activemq
addgroup -system activemq
  • Adjust user shell

Edit: 

vim /etc/passwd

Adjust the user SHELL 

activemq:x:116:65534::/home/activemq:/bin/bash
  • Adjust user group

Edit: 

vim /etc/group

Adjust the group membership 

activemq:x:1001:activemq
  • Set MQ folder privileges
chown -R activemq:activemq /opt/apache-activemq-5.9.1/
chown -R activemq:activemq /opt/activemq/

Basic configuration

Home + User

  • Set home and user

Edit 

vim /opt/activemq/bin/activemq

Set after "Configuration" (line ~ 40) 

ACTIVEMQ_HOME=”/opt/activemq”
ACTIVEMQ_USER=”activemq”

Runtime configuration

  • Create runtime configuration. Generate default settings
/opt/activemq/bin/activemq setup /etc/default/activemq
  • Adjust configuration rights
chown root:nogroup /etc/default/activemq
chmod 600 /etc/default/activemq

Add ActiveMQ to boot sequence

cd /etc/init.d
update-rc.d activemq defaults

Remove ActiveMq from boot sequence

update-rc.d -f activemq remove
rm /etc/init.d/activemq


Setup firewall

This is the list of ports that are used by ActiveMQ:

  • port 61616 = JMS queue access
  • port 11099 = JMX remote console (connector port)
  • port 8161 = HTTP manager
  • port 8162 = HTTPS manager
  • port 5672 = AMQP port

Edit your firewall script: 

vim /etc/firewall/firewall-start.sh


# INPUT
$IPTABLES -A INPUT -p tcp -m state --state NEW --dport 5672 -j ACCEPT            # AMQP port
$IPTABLES -A INPUT -p tcp -m state --state NEW --dport 8161 -j ACCEPT            # HTTP web-console. Not required if you're using Apache2 proxy
$IPTABLES -A INPUT -p tcp -m state --state NEW --dport 8162 -j ACCEPT            # HTTPs web-console. Not required if you're using Apache2 proxy
$IPTABLES -A INPUT -p tcp -m state --state NEW --dport 11099 -j ACCEPT           # JMX standalone port. Not required if you're using default JVM JMX connector on TCP 1616
$IPTABLES -A INPUT -p tcp -m state --state NEW --dport 61616 -j ACCEPT           # JMS port

# Output
$IPTABLES -A OUTPUT -p tcp -m state --state NEW --dport 5672 -j ACCEPT 
$IPTABLES -A OUTPUT -p tcp -m state --state NEW --dport 8161 -j ACCEPT
$IPTABLES -A OUTPUT -p tcp -m state --state NEW --dport 8162 -j ACCEPT
$IPTABLES -A OUTPUT -p tcp -m state --state NEW --dport 11099 -j ACCEPT
$IPTABLES -A OUTPUT -p tcp -m state --state NEW --dport 61616 -j ACCEPT


Logs

The application's logs are in $ACTIVEMQ/data/activemq.log 

cat /opt/activemq/data/activemq.log


Advanced Configuration (all O.S)

Broker settings

Edit configuration file

  • Linux ~ manual
vim /opt/activemq/conf/activemq.xml
  • Linux ~ auto
vim /etc/activemq/instances-enabled/main/activemq.xml
  • Windows

$ACTIVEMQ/conf/activemq.xml


Adjust broker setting

  • Set broker name
<broker     xmlns="http://activemq.apache.org/schema/core"
        brokerName="myServerName"
       dataDirectory="${activemq.base}/data">
  • Set listener to all interfaces (0.0.0.0)
<transportConnectors>
        <transportConnector name="openwire" uri="tcp://0.0.0.0:61616"/>
</transportConnectors>
  • Limit queues size​
<systemUsage>
 <systemUsage>
  <memoryUsage>
   <memoryUsage limit="64 mb"/>
  </memoryUsage>
  <storeUsage>
   <storeUsage limit="100 gb"/>
  </storeUsage>
  <tempUsage>
   <tempUsage limit="50 gb"/>
  </tempUsage>
 </systemUsage>
</systemUsage>


Enable HTTP web console

Edit your jetty configuration

Linux ~ Manual 

vim /opt/activemq/conf/jetty.xml
  • Windows

$ACTIVEMQ/conf/jetty.xml

Adjust broker name and listening port

At the bottom, edit connector : 

<property name="connectors">
  <list>
     <bean id="Connector" class="org.eclipse.jetty.server.nio.SelectChannelConnector">
         <property name="port" value="8161" />
         <property name="host" value="0.0.0.0" />
      </bean>
    ...
  </list>
</property>


Change root context for Web-Console

Edit "jetty.xml" [look to the previous §]

Add a new securityConstraintMapping (line 40), " /activemq/* " 

<bean id="securityConstraintMapping" class="org.eclipse.jetty.security.ConstraintMapping">
      <property name="constraint" ref="securityConstraint" />
      <property name="pathSpec" value="/api/*,/activemq/*,/admin/*,*.jsp" />
 </bean>


Change the WebAppContext.contextpath value to " /activemq " instead of " /admin " 

  <property name="handler">
     <bean id="sec" class="org.eclipse.jetty.server.handler.HandlerCollection">
         <property name="handlers">
             <list>
                 <bean class="org.eclipse.jetty.webapp.WebAppContext">
                    <!-- property name="contextPath" value="/admin" / -->
                    <property name="contextPath" value="/activemq" />
                    <property name="resourceBase" value="${activemq.home}/webapps/admin" />
                    <property name="logUrlOnStart" value="true" />
                 </bean>

                 ...


Manage web-users

vim /opt/activemq/conf/jetty-realm.properties

Edit last line 

     admin: admin, admin


Apache 2 mod proxy

If you like to use Apache 2 mod_proxy instead of opening your ports:

Edit either your Virtual Host configuration of mod_proxy.conf : 

	ProxyPass /activemq http://localhost:8161/activemq/
	ProxyPassReverse /activemq http://localhost:8161/activemq


Enable JMX remote management and monitoring

Official documentation: http://activemq.apache.org/jmx.html


Add JMX support

Edit configuration: 

vim /opt/activemq/conf/activemq.xml


Adjust the broker tag (line 35), add useJmx="true" 

<broker xmlns="http://activemq.apache.org/schema/core" useJmx="true" brokerName="preprodrtd.vehco.com" dataDirectory="${activemq.data}">
...
</broker>


Make sure that you're using the default JVM connector (line 65): 

<broker xmlns="http://activemq.apache.org/schema/core" useJmx="true" brokerName="preprodrtd.vehco.com" dataDirectory="${activemq.data}"> 
  ... 
  <managementContext>
     <managementContext createConnector="false" />
  </managementContext>
   ...
 </broker>


Create JMX users

  • User creation
vim /opt/activemq/conf/jmx.access

Add some users. As a reminder: 

userMq readonly
adminMq readwrite


  • User password
vim /opt/activemq/conf/jmx.password

Set passwords. Usernames must match! 

userMq abc123
adminMq abcd1234


JMX settings

Edit activemq launcher 

vim /opt/activemq/bin/activemq

Search for ACTIVEMQ_JMX and adjust the lines to: 

# ACTIVEMQ_SUNJMX_START="-Dcom.sun.management.jmxremote.port=11099 "
ACTIVEMQ_SUNJMX_START="-Dcom.sun.management.jmxremote.port=1616 "
ACTIVEMQ_SUNJMX_START="$ACTIVEMQ_SUNJMX_START -Dcom.sun.management.jmxremote.password.file=${ACTIVEMQ_CONF}/jmx.password"
ACTIVEMQ_SUNJMX_START="$ACTIVEMQ_SUNJMX_START -Dcom.sun.management.jmxremote.access.file=${ACTIVEMQ_CONF}/jmx.access"
ACTIVEMQ_SUNJMX_START="$ACTIVEMQ_SUNJMX_START -Dcom.sun.management.jmxremote.ssl=false"
ACTIVEMQ_SUNJMX_START="$ACTIVEMQ_SUNJMX_START -Dcom.sun.management.jmxremote"

!! Note that the right port to use is 1616 !!


Automatic installation

!! Depending on your distro, you might not have the web console !! This is NOT recommended.

Get binary

apt-get install activemq

Enable instance

  • Check instance
cd /etc/activemq/instances-enabled/
ls

... By default you should have an instance enable.

If not: 

ln -s /etc/activemq/instances-available/main /etc/activemq/instances-enabled/main
cp /usr/share/activemq/activemq-options /etc/activemq/instances-available/main/options
  • Edit settings
vim /etc/activemq/instances-available/main/options
  • Adjust $INSTANCE (use 'main')
ACTIVEMQ_BASE="/var/lib/activemq/main"

Create directories

mkdir -p /var/lib/activemq/main/data
mkdir -p /var/lib/activemq/main/data/kahadb                
chown -R activemq:activemq /var/lib/activemq/main
chmod -R 755 /var/lib/activemq/main

Kahadb == MQ embedded DB

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