Webinar Thursday, February 15, 2018: Basic Internal Troubleshooting Tools for MySQL Server

Troubleshooting Tools for MySQL

Troubleshooting Tools for MySQLPlease join Percona’s Principal Support Engineer, Sveta Smirnova, as she presents “Basic Internal Troubleshooting Tools for MySQL Server” on Thursday, February 15, 2018, at 10:00 am PST (UTC-8) / 1:00 pm EST (UTC-5).


MySQL Server has many built-in troubleshooting tools. They are always available and can provide many insights on what is happening internally. Many graphical tools, such as Percona Monitoring and Management (PMM), use built-ins to get data for their nice graphs.

Even if you are only going to use graphical tools, it is always good to know what data they can collect. This way, you can see their limitations and won’t have incorrect expectations in the heat of battle. Built-in troubleshooting tools are accessible via SQL commands. Most of them are standard across the server, but details are component-specific.

In this webinar, I will discuss how to use them, how to troubleshoot component-specific issues and how to find additional information. I will cover SHOW commands, Information Schema, status variables and few component-specific syntaxes. I will NOT cover Performance Schema (there will be a separate webinar on that), and I will use PMM graphs to illustrate the topics whenever possible.

Register for the Basic Internal Troubleshooting Tools for MySQL Server webinar now.

Internal Troubleshooting for MySQLSveta Smirnova, Principal Technical Services Engineer

Sveta joined Percona in 2015. Her main professional interests are problem-solving, working with tricky issues, bugs, finding patterns that can solve typical issues quicker. She likes teaching others how to deal with MySQL issues, bugs and gotchas effectively. Before joining Percona Sveta worked as Support Engineer in MySQL Bugs Analysis Support Group in MySQL AB-Sun-Oracle. She is the author of book “MySQL Troubleshooting” and JSON UDF functions for MySQL.

Read more at: //www.mysqlperformanceblog.com/

This Week in Data with Colin Charles 28: Percona Live, MongoDB Transactions and Spectre/Meltdown Rumble On

Colin Charles

Colin CharlesJoin Percona Chief Evangelist Colin Charles as he covers happenings, gives pointers and provides musings on the open source database community.

In case you missed last week’s column, don’t forget to read the fairly lengthy FOSDEM MySQL & Friends DevRoom summary.

From a Percona Live Santa Clara 2018 standpoint, beyond the tutorials getting picked and scheduled, the talks have also been picked and scheduled (so you were very likely getting acceptance emails from the Hubb.me system by Tuesday). The rejections have not gone out yet but will follow soon. I expect the schedule to go live either today (end of week) or early next week. Cheapest tickets end March 4, so don’t wait to register!

Amazon Relational Database Service has had a lot of improvements in 2017, and the excellent summary from Jeff Barr is worth a read: Amazon Relational Database Service – Looking Back at 2017. Plenty of improvements for the MySQL, MariaDB Server, PostgreSQL and Aurora worlds.

Spectre/Meltdown and its impact are still being discovered. You need to read Brendan Gregg’s amazing post: KPTI/KAISER Meltdown Initial Performance Regressions. And if you visit Percona Live, you’ll see an amazing keynote from him too! Are you still using MyISAM? MyISAM and KPTI – Performance Implications From The Meltdown Fix suggests switching to Aria or InnoDB.

Probably the biggest news this week though? Transactions are coming to MongoDB 4.0. From the site, “MongoDB 4.0 will add support for multi-document transactions, making it the only database to combine the speed, flexibility, and power of the document model with ACID guarantees. Through snapshot isolation, transactions will provide a globally consistent view of data, and enforce all-or-nothing execution to maintain data integrity.”. You want to read the blog post, MongoDB Drops ACID (the title works if you’re an English native speaker, but maybe not quite if you aren’t). The summary diagram was a highlight for me because you can see the building blocks, plus future plans for MongoDB 4.2.


Link List

Upcoming appearances

  • SCALE16x – Pasadena, California, USA – March 8-11 2018
  • FOSSASIA 2018 – Singapore – March 22-25 2018


I look forward to feedback/tips via e-mail at [email protected] or on Twitter @bytebot.

Read more at: //www.mysqlperformanceblog.com/