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Search Results for: mysql script examples

Why base64-output=DECODE-ROWS does not print row events in MySQL binary logs

Lately I saw many cases when users specified option --base64-output=DECODE-ROWS  to print out a statement representation of row events in MySQL binary logs just to get nothing. Reason for this is obvious: option --base64-output=DECODE-ROWS  does …

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MySQL QA Episode 7: Reducing Testcases for Beginners – single-threaded reducer.sh!

Welcome to MySQL QA Episode #7 – Reducing Testcases for Beginners: single-threaded reducer.sh! In this episode we’ll learn how to use reducer.sh. Topics discussed; reducer.sh introduction/concepts Basic configurable variables & their default reducer.sh settings INPUTFILE options …

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MySQL shell prompt vs MongoDB shell prompt

Recently Todd Farmer shared an interesting story about the mysql command line prompt in MySQL 5.7: how it was changed to provide more context and why the change was finally reverted. This made me think …

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MySQL QA Episode 1: Bash/GNU Tools & Linux Upskill & Scripting Fun

MySQL QA Episode #1: Bash/GNU Tools & Linux Upskill & Scripting Fun This episode consists of 13 parts, and an introduction. See videos below In HD quality (set your player to 720p!) Introduction Part 1: …

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5 free handy tools for monitoring and managing MySQL replication

MySQL Replication is very simple to set up. In this post I’ll discuss its importance and five handy tools for monitoring and managing MySQL replication. What is MySQL Replication? It’s the process of copying the …

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3 handy tools to remove problematic MySQL processes

DBAs often encounter situations where they need to kill queries to ensure there are no long-running queries on a MySQL server that would impact performance. Long-running queries can be the result of many factors. Fortunately, …

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Sys Schema for MySQL 5.6 and MySQL 5.7

Performance Schema (P_S) has been available since MySQL 5.5, more than 4 years ago. It is still difficult to see production servers with P_S enabled, even with MySQL 5.6 where the feature is enabled by …

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mysqld_multi: How to run multiple instances of MySQL

The need to have multiple instances of MySQL (the well-known mysqld process) running in the same server concurrently in a transparent way, instead of having them executed in separate containers/virtual machines, is not very common. Yet …

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Q&A: Putting MySQL Fabric to use

Martin Arrieta and I gave an online presentation last week on “Putting MySQL Fabric To Use.” If you missed it, you can find a recording and the slides here, and the vagrant environment we used plus …

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Managing shards of MySQL databases with MySQL Fabric

This is the fourth post in our MySQL Fabric series. In case you’re joining us now, we started with an introductory post, and then discussed High Availability (HA) using MySQL Fabric here (Part 1) and here (Part …

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