What is Application Performance Monitoring?
Before we go to end-to-end monitoring, let us talk a little about Application Performance Monitoring (APM).
APM is a way to monitor and manage an application’s performance and availability to detect, diagnose and in-turn remediate issues to maintain or, exceed user expectations. Though there are many products in market for APM, I will specifically talk about getting started with APM for Oracle E-Business Suite via Oracle Management Cloud (OMC).
Now, I do understand that Oracle Cloud Observability and Management Platform (OCOMP) is also available and provides functionalities similar to OMC, in my personal opinion, the product is very new, still being developed and has a long way to go to replace or, provide unified monitoring view as OMC. OMC is still fully supported by Oracle for the near foreseeable future. Nevertheless, another blog post for a comparison between the two, but let’s focus on end-to-end monitoring of EBS via OMC here.
Oracle Management Cloud is a PAAS-based offering from Oracle and irrespective of where your EBS environment is i.e. on-premise or, cloud, it would need a way to communicate with the EBS environment. We can achieve this via either installing the cloud agent with a gateway agent or, over a proxy server. We can also utilize a data collector and skip the need to install local cloud agents on the server however, there is no way we can skip installation of APM agent locally for application performance monitoring.
While the ways to install cloud agents and allowing them to communicate with OMC may differ, the overall idea of monitoring remains the same! For end-to-end monitoring of E-business application, we would need monitoring at all three levels i.e.:
- Operating System Monitoring via cloud agent,
- Database monitoring via cloud agent and discovered in OMC as Database System or, individual database,
- Application performance monitoring via APM agent.
- Agents downloaded and transferred to the machines running EBS and its database. (Can be easily automated via Ansible).
For the sake of this article, we will target the typical installations on a Linux based environment. I will, however try to provide relevant links to address other scenarios.
Configure Host (O.S.) Monitoring
The following list contains the minimum system requirements for installing cloud agents:
- RAM: 1 GB
- Kernel Parameter for Ulimit value for maximum user processes >=4000
- Ports: 4459 to 4479 (if the default port 4459 is not available, OMC agent will try to communicate over the next available port from the defined range)
- Free disk space: 1 GB
Step 1: Once the pre-requisites are met, login to Oracle Management Cloud, navigate to Administration –> Agent –> Download Agents.
Step 2: Download the Cloud and APM Agents. Also copy the registration key.
Step 3: Transfer the cloud and APM agents to the VMs running EBS application. The database server would only need the cloud agent to be installed.
Step 4: Create a new Linux user for OMC monitoring and set its password.
$ sudo useradd omcmon $ sudo passwd omcmon
Step 5: Create agent base directory.
mkdir -p /opt/omc
Step 6: Unzip the agent software into a temporary directory and install the agent using the following command:
./AgentInstall.sh TENANT_NAME=<TENANT_NAME> OMC_URL=<OMC_URL> AGENT_REGISTRATION_KEY=<AGENT_REGISTRATION_KEY> AGENT_BASE_DIRECTORY=<AGENT_BASE_DIRECTORY>