packetbeat is one of the best application performance management tools in the opensource community. It’s now part of the beats that Elastic provide us to monitor our applications. What it does is analyze our data packets to send some useful information to ElasticSearch. After the introduction you probably realize that we will need: ElasticSearch installed and if you want to see something useful you will need Kibana as well. There is a guide for getting started that explains the process pretty clearly.