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Showing entries 1 to 7

Displaying posts with tag: pt-stalk (reset)

Percona Toolkit and systemd
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After some recent work with systemd I’ve realized it’s power and I can come clean that I am a fan. I realize that there are multitudes of posts out there with arguments both for and against systemd but let’s look at some nice ways to have systemd provide us with (but not limited to) pt-kill-as-a-service.

This brief post introduces you to a systemd unit file and how we can leverage them to enable pt-kill at startup, have it start after mysqld and ensure that MySQL is running by using the mysql service as a dependency of pt-kill. By using systemd …

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Calling all MySQL DBAs: How do you use Percona Toolkit?
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Percona Toolkit is one of our most mature open source applications. Derived from Maatkit and Aspersa, Percona Toolkit has evolved significantly over the years. The software now contains 32 tools, over 4,000 tests, and has been downloaded over 250,000 times. Anyone who manages a database – from DBAs to system administrators to even software developers – benefits from Percona Toolkit’s ability to perform a variety of MySQL server and system tasks that are too difficult …

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Percona Toolkit 2.2.11 for MySQL is now available
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Percona is pleased to announce the availability of Percona Toolkit 2.2.11.  Released on Sept. 25, Percona Toolkit is a collection of advanced command-line tools to perform a variety of MySQL server and system tasks that are too difficult or complex for DBAs to perform manually. Percona Toolkit, like all Percona software, is free and open source.

This release contains bug fixes for …

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Hunting for “Locked” queries with pt-stalk utility
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Recently we faced an issue when Nagios reported significant amount of “Locked” queries.
To investigate and debug the issue we needed to get more insight about the state of MySQL and the OS at the time the locks occurred.
This is how we got the much needed information:

wget -O pt-stalk
chmod +x pt-stalk
mkdir -p /tmp/pt-stalk
sudo pt-stalk --daemonize --notify-by-email <EMAIL> --log /tmp/pt-stalk/pt-stalk.log --user root --dest /tmp/pt-stalk --function processlist --variable State --match Locked --threshold 20 --cycles=10 --sleep=15 --run-time=15 …

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5 Percona Toolkit Tools for MySQL That Could Save Your Day: April 3 Webinar
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On April 3 at 10 a.m. PST, I’ll be giving a webinar titled “5 Percona Toolkit Tools for MySQL That Could Save Your Day.” In this presentation you’ll learn how to perform typical but challenging MySQL database administration tasks.

My focus will be on the following tools:

  • pt-query-digest, to select the queries you should try to improve to get …
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Percona Toolkit by example – pt-stalk
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pt-stalk recipes: Gather forensic data about MySQL when a server problem occurs

It happens to us all from time to time: a server issue arises that leaves you scratching your head. That’s when Percona Toolkit’s pt-stalk comes into play, helping you diagnose the problem by capturing diagnostic data that helps you pinpoint what’s causing the havoc hitting your database.

From the documentation (

pt-stalk watches for a trigger condition to become true, and …

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RainGauge, the new killer tool ?
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I’m sure you’ve heard of Box Anemometer from the Box (MySQL) team, an excellent UI tool based on pt-query-digest. Now the guys from the box team offer us another killer UI tool based on pt-stalk, and I’m sure you will really appreciate to use it !

What is it ?

RainGauge” consists of three parts :

  • A set of scripts that collect data about the health of your system and your databases (based on pt-stalk)
  • A process that push these data …

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Showing entries 1 to 7

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