Personal blog of Yzmir Ramirez

Welcome to MySQL QA Episode #7 – Reducing Testcases for Beginners: single-threaded reducer.sh!

In this episode we’ll learn how to use reducer.sh. Topics discussed;

1. reducer.sh introduction/concepts
2. Basic configurable variables & their default reducer.sh settings
   1. INPUTFILE options
   2. MODE=x
   3. TEXT=”text”
   4. WORKDIR_LOCATION & WORKDIR_M3_DIRECTORY
   5. MYEXTRA
   6. MYBASE
   7. PQUERY_MOD & PQUERY_LOC
   8. MODE5_COUNTTEXT, MODE5_ADDITIONAL_TEXT & MODE5_ADDITIONAL_COUNTTEXT
   9. How to learn more about each of the settings
3. Manual example
4. Introduction to the script’s self-recursion concept – subreducer
5. Quick setup re-cap, details of an already executed QA run
6. Examples from pquery-prep-red.sh (including some issue reviews)
7. Gotcha’s
8. QUERYTIMEOUT & STAGE1_LINES Variables

Full-screen viewing @ 720p resolution recommended.

If the speed is too slow for you, consider setting YouTube to 1.25 playback speed.

The post MySQL QA Episode 7: Reducing Testcases for Beginners – single-threaded reducer.sh! appeared first on MySQL Performance Blog.