DaveWentzel.com            All Things Data

October 2015

Linux Performance Management for the DBA

Sometimes a DBA doesn't have the luxury of a Linux administrator when help is needed diagnosing performance problems.  It doesn't matter if you are an accidental DBA for PostgreSQL, MySQL, Vertica, or any other database manager (NoSQL included)...you really should know how to detect if your OS is performing its best.  This post is a quick guide for a DBA (or anyone really) who needs to get up-to-speed quickly on Linux from a performance management perspective.  

Migrating gitlab to omnibus from source, debian to rpm, apache to nginx, and mysql to postgresql

I've had my own gitlab installation for a few years.  I built it long before it was easy to build and maintain.  Originally I installed gitlab from source, on ubuntu, using mysql and apache.  It's a real PITA to maintain given that omnibus installations are so much easier to maintain.  (omnibus is geek-speek for "all-in-one").  In this post I'll cover the steps I did to pull off upgrading this to omnibus, switching to postgresql from mysql, apache to nginx, and ubuntu to centos (which is my new Linux standard).  

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Other MySQL Performance Management Tooling

In my last post, Introduction to the MySQL Performance Schema, I covered the performance_schema which is a relatively new feature of MySQL 5.5.  If you are using an earlier version of MySQL you won't have access to performance_schema.  This post covers your alternatives when you find yourself facing a performance problem as an "accidental MySQL DBA".  

Introduction to the MySQL Performance Schema

If you are new to performance troubleshooting with MySQL, specifically using the performance_schema, then this post is for you.  If you are an "accidental DBA" for MySQL, and you need to quickly fix some performance problems, then read on.  This post will give you example queries and background to get your MySQL performance problems solved quickly.  

Storm Notes

Need to get up-to-speed quickly on the basics of Apache Storm?  This quick post will give you everything you need to know to speak somewhat competently about Storm.  You'll learn the general architecture, terms, proper use cases, and basic administration and performance management.