How do I upgrade to a modern QueueMetrics system on Elastix 2 / CentOS 5?

2017-05-29
The current version of QueueMetrics depends on Java 1.8. This version of Java is not present in the CentOS 5 upstream repositories and so QueueMetrics will complain that a required package is not present and a fully automated install is not possible.
In order to upgrade, you need to:
  • Download Java 1.8 from the Oracle repositories. It seems that OpenJDK 8 is not available for CentOS 5 systems
  • Manually install it
  • Download the queuemetrics-tomcat package and install it manually
  • Upgrade QueueMetrics normally via yum
Downloading and installing Java 1.8
You can download a Java 1.8 SDK (not just the JRE, but the full SDK) for your architecture from http://www.oracle.com/technetwork/java/javase/downloads/index.html - choose the right RPM format for your architecture. Use exactly Java 8, not an earlier or later version.
Now run:yum localinstall jdk-8u121-linux-i586.rpmIf all goes well, by running it you should receive a confirmation message like the one below:# java -version
java version "1.8.0_121"
Java(TM) SE Runtime Environment (build 1.8.0_121-b13)
Java HotSpot(TM) Client VM (build 25.121-b13, mixed mode, sharing)
Now we need to create a symlink that lets QueueMetrics find it:mkdir -p /usr/lib/jvm
cd /usr/lib/jvm
ln -s /usr/java/jdk1.8.0_121/jre/ java
Make sure you change the exact directory (where it says jdk1.8.0_121) to match your version of Java.

Downloading and installing Tomcat 8
As our Tomcat 8 package has a requirement for Java 1.8, we need to download and install it manually: cd /root
wget http://yum.loway.ch/RPMS/noarch/queuemetrics-tomcat-8.5.12-28.noarch.rpm
rpm --nodeps -Uvh queuemetrics-tomcat-8.5.12-28.noarch.rpm
If all goes well, by running the following command you get a confirmation that QueueMetrics will use the right Java package:# /usr/local/queuemetrics/java/bin/java -version
java version "1.8.0_121"
Java(TM) SE Runtime Environment (build 1.8.0_121-b13)
Java HotSpot(TM) Client VM (build 25.121-b13, mixed mode, sharing)

Updating QueueMetrics
Now you can upgrade QueueMetrics as usual:yum update queuemetricsAnd then go to home page and follow the update wizard to upgrade your database.


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