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Displaying posts with tag: MySQL Tuner (reset)

7 Ways to Troubleshoot MySQL
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MySQL databases are great work horses of the internet.  They back tons of modern websites, from blogs and checkout carts, to huge sites like Facebook.  But these technologies don't run themselves.  When you're faced with a system that is slowing down, you'll need the right tools to diagnose and troubleshoot the problem.  MySQL has a huge community following and that means scores of great tools for your toolbox. Here are 7 ways to troubleshoot MySQL.

1. Use innotop

Innotop is a great tool for MySQL which despite the name monitors MySQL generally as well as InnoDB usage.  It's fairly easy to install, just download the perl script. Be sure to include a [client] section to your local users .my.cnf file (you have one don't you?).  Inside that section, place one line with "user=xyz" and one line with "password=abc".

If you're concerned that

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Three Clever MySQL Diagnostic Tools
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Last week I had to confront one of those situations where you can’t really tell what is going on with a piece of software, and the final conclusion would sound completely crazy if postulated as the initial hypothesis. The regular MySQL commands and utilities fall short in these cases, so I had to resort to the three tools reviewed in this article.

The problem we were diagnosing was this: at some point in time, a number of queries that use to take less than one minute to execute, started to take between five to 15 minutes. We needed to get an insight into what was going on inside the MySQL server.

MySQL Tuner

At some point in a long diagnosis process, MySQL’s SHOW [GLOBAL] VARIABLES and SHOW [GLOBAL] STATUS are nothing more than a long list of numbers. Going through a team mate’s notes on another issue, I came

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