BLOCKING: Failure calling 'java -jar ./nrjmx/nrjmx.jar' when using Cassandra JMX config about nri-flex

[icpenguins]

Closing this issue. I was able to get this to work using the manual installation process.

Summary

I used the install_linux_s3.sh for the flex installation. After going through the install_linux.sh script I found the line about uncommenting the copy of the nrjmx folder.

Install JMX On Linux

Below are the steps that I used to install the nrjmx file and .jar manually to enable support for JMX. It is important to substitute the {desired version} below with the version you are attempting to use.

1. Download the package manually
   • curl -L https://github.com/newrelic/nri-flex/releases/download/v0.9.2/nri-flex-linux-{desired version}.tar.gz -o nri-flex-linux-{desired version}.tar.gz
2. Extract the file
   • tar -xvf nri-flex-linux-{desired version}.tar.gz
3. cd into extracted directory
   • cd nri-flex-linux-{desired version}
4. Edit the install_linux.sh script and uncomment out the nrjmx copy line
5. Run the install as sudo
6. (optional) Copy over a JMX configuration to being monitoring
   • In the nri-flex-linux-{desired version}/examples/flexConfigs/ folder there are two different JMX examples which can be used as a reference
   • After copying an example config to /var/db/newrelic-infra/custom-integrations/flexConfigs, edit the file according to your monitoring needs and save the file
   • Restart the infrastructure agent, sudo systemctl restart newrelic-infra