E M T Better Performance Monitoring

This document describes EMT, a tool for collecting and storing system monitoring data. EMT can run plugins to collect metrics from services, store the data locally, and send it for archiving. The data is organized by instances, fields, and sub-fields. Users can query and view the stored data using the emt_view command line tool. Plugins are configured using a my.cnf style file to define what to monitor and store. The goal of EMT is to provide a simple way to collect, store, and access system monitoring data.