Fluentd Hacking Guide at RubyKaigi 2014

This document summarizes a talk on hacking the Fluentd log streaming framework. It discusses Fluentd's bootstrap sequence and how it loads plugins. It explains how input plugins pass data to output plugins and how the BufferedOutput plugin works by buffering data to avoid blocking. It cautions that output plugins can block which BufferedOutput avoids, but it can also get stuck if the buffer exceed