New Relic announced a new plugin framework for their excellent SaaS APM solution. I have installed both the Apache and Redis plugins. Now I have a central location where I can correlate events. The Apache plugin offers insight into counters like requests, worker processes, and cpu load. The Redis plugin offers insight into memory use, keys, and connections.
Both plugins require python, which should not be a problem on all modern distros. Installation was a snap. Simply install the application with pyton pip, move the config file and init file to their respective locations, modify the config to your environment, and start the service. You need to supply your New Relic key. Within minutes you will start seeing data in the dashboard.
Next, I will install the MySQL plugin (requires java).
See:
New Relic Platform