DevOps SRE Blog

  In the   previous blog post , we discussed about how to monitor weblogic based applications including SOA and OSB using Vmware Wavefront. In this blog post, let us explore open source alternative with Prometheus and Grafana. We will use Oracle   Weblogic Monitoring Exporter   in place of jolokia agent to export metric to Prometheus and Grafana for visualizing metrics. High level steps are: 1. Download and install Weblogic Monitoring Exporter. 2. Install Prometheus & Grafana 3. Configure Prometheus to scrape metrics from wls-exporter 4. Configure Grafana dashboards using Prometheus datasource. Below are detailed steps: Install Weblogic Monitoring Exporter : Go to  Weblogic Monitoring Exporter github releases  page and download latest  get_v<version>.sh  script. Copy the exporter configuration file  located here . and pass that as parameter (e.g., ./get_v2.1.2.sh exporter_config.yaml) to get_v<version>.sh. This script download...

  Traditionally sysadmins used bash, WLST/Jython scripts to monitor weblogic based applications including Oracle SOA Suite and Oracle Service Bus. There are few disadvantages with this approach: Need to maintain multiple scripts to monitor a single domain. Sysadmins needs to be proficient in 1 or 2 scripting language. Developing script may take few hours to few days. Will not have access to historical monitoring data for doing trend analysis. With the advent of modern monitoring tools like Prometheus and Grafana, above challenges are addressed. We can setup beautiful graphs and dashboards quickly and tools like Grafana also support alerting mechanism. Wavefront is an integrated solution that can store time series metrics, supports great visualizations, alerting, tracing and more. This blog post describes steps to integrate Weblogic monitoring with Wavefront. Weblogic doesn’t expose time series metrics data directly. So, we need to install Jolokia on Weblogic for exposing JMX metric...