MySQL Troubleshooting

Expert Knowledge Online

If you are searching for a detailed article about one or another feature, try the following resources:

MySQL Forge

This has information about MySQL internals, plug-in development, public worklogs, and community projects. You can find wikis describing the internals of many features, MySQL internals documentation, community add-ons, and public worklogs (plans for MySQL development in future versions).

MySQL Planet

This is an aggregator of English-language blogs about MySQL. All blogs belonging to active community members are combined there. You can find posts that describe one or another feature in detail and posts that go deep into internals. This is a great source for finding information about MySQL in a single place. There are also language-specific MySQL Planets; check whether one exists for your native language.

I want to highlight two of the blogs you can find on this site:

MySQL Performance Blog

This blog is written by Percona engineers and contains a great amount of information about performance tuning. This is the first source you should check if you run into a performance problem.

InnoDB Team Blog

As can be guessed from the name, this is a blog written by members of the InnoDB team. There you can find details about InnoDB development, usage tips for new features, and internals. This is really great resource for those who use the InnoDB storage engine.