September 2014
Intermediate to advanced
384 pages
9h 28m
English
Content preview from Mastering MariaDBBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Explaining the pt-query-digest command from Percona Toolkit
The
pt-query-digest command is a tool included in the Percona Toolkit project (formerly known as Maatkit). This command can read the queries from the slow query log, general query log, binary log (to be discussed later), and SHOW PROCESSLIST statement.
To use
pt-query-digest, Percona Toolkit needs to be installed. The package is included in several Linux distributions. The latest version can be downloaded from Percona's website as the .deb or .rpm package. It is compatible with all versions of MariaDB and MySQL starting from MySQL 5.0. It does not work on Windows and requires Perl.
Usually, we prefer to analyze the slow query log first because the queries it contains are likely to be ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.