Lessons learned from someone else

  • even the popular open source products, their documents are still not complete and somewhat hard to understand, and many of solutions searched out are immature and useless.
  • copying other people’s examples is a good way to get started, but productivity is from fully understanding how the thing works.
  • when learning, you can have a look at other people’s complex work, but you’d better to start simple and build it up knowledge gradually so that you had less chance to spend time on wrong directions.

Original: http://mashijie.blogspot.com.br/2015/05/logstash-filter-for-tomcat.html