Note that if we had run it without the above manual tweaks, only 1 out of 4 fixes would have been manually identified because the other 3 depend on user preference and the app’s environment.

To install the variable inspector on Ubuntu: wget$(lsb_release -sc)_sudo dpkg -i percona-release_0.1-4.$(lsb_release -sc)_sudo apt-get update sudo apt-get install percona-toolkit # WARN delay_key_write: My ISAM index blocks are never flushed until necessary.

So the update and insert queries will be slower and it will cost you a bit more disk space.

avg updating slow-67

So how do we find out which indexes to add, and which types of indexes exist?

Primary indexes are the main indexes of data which are the default way of addressing them.

The Tuner will monitor a database in longer intervals (run it once per week or so on a live app) and suggest changes based on what it’s seen in the logs.

Install it by simply downloading it: [--] Inno DB is enabled.

If there weren’t any indexes, you’d have to go through the whole book searching for pages that contain the subject.

As you can imagine, it’s way faster to search by an index than having to go through each page.

My SQL is still the world’s most popular relational database, and yet, it’s still the most unoptimized – many people leave it at default values, not bothering to investigate further.

In this article, we’ll look at some My SQL optimization tips we’ve covered previously, and combine them with novelties that came out since. – performance upgrade every user of My SQL should do is tweak the configuration.

] Inno DB buffer pool Again, it’s important to note that this tool should be run once per week or so as the server has been running.