Author - Roel Van de Paar

MySQL 8.0 GA: Quality or Not?

MySQL 8.0 GA

What does Anton Ego – a fictional restaurant critic from the Pixar movie Ratatouille – have to do with MySQL 8.0 GA?
When it comes to being a software critic, a lot.
In many ways, the work of a software critic is easy. We risk very little and thrive on negative criticism, which is fun to […]

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Thoughts on MySQL 8.0.3 RC – The First MySQL 8.0 Release Candidate

MySQL 8.0.3 Release Candidate

Percona’s Technical Director of Quality Assurance Roel Van de Paar shares his findings on the quality of MySQL 8.0.3 RC.
On 21 September 2017, our upstream friends at Oracle released MySQL 8.0.3 RC as the first MySQL 8.0 Release Candidate.
I tested the MySQL 8.0.3 Release Candidate branch with selected Percona bugfixes applied and built it […]

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ProxySQL Admin Configuration

ProxySQL Admin

ProxySQL Admin (proxysql-admin) is a powerful tool for configuring Percona XtraDB Cluster nodes into ProxySQL. The proxysql-admin tool comes with the ProxySQL package from Percona apt/yum repositories.
ProxySQL 1.3.2-1 is now available from the Percona repositories. This release is based on ProxySQL v1.3.2a and introduces the following new changes: proxysql-admin_v1.3.2a.md.
Installing on Red Hat or CentOS
If you […]

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MySQL 8.0.1: The Next Development Milestone

MySQL 8.0 innodb_dedicated_server

This post discusses the next MySQL development milestone: MySQL 8.0.1.
From the outset, MySQL 8.0 has received plenty of attention. Both this blog (see the MySQL 8.0 search) and other sites around the Internet have covered it. Early reviews seem positive (including my own MySQL 8.0 early bugs review). There is plenty of excitement about the new features.
As for […]

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Percona Monitoring and Management (PMM) Information Script

Percona Monitoring and Management

This blog post discusses an information script for the Percona Monitoring and Management (PMM) tool.
In recent news, we announced the fresh-of-the-press Percona Monitoring and Management (or PMM for short) platform. Given the interaction of the different components that together make up PMM, I developed a script that helps provide you information about the status of your PMM installation.
You can use this script yourself, or one of our support […]

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7 Fresh Bugs in MySQL 8.0

bugs in mysql 8.0

This blog post will look at seven bugs in MySQL 8.0.
Friday afternoon is always ideal for a quick look at the early quality of MySQL 8.0! Last Friday, I did just that.
If you haven’t heard the news yet, MySQL 8.0 DMR is available for download on mysql.com!
Tools to the ready: pquery2, updated 8.0 compatible scripts in […]

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Regular Expressions Tutorial

regular expressions

This blog post highlights a video on how to use regular expressions.
It’s been a while since I did the MySQL QA and Bash Training Series. The 13 episodes were quite enjoyable to make, and a lot of people watched the video’s and provided great feedback.
In today’s new video, I’d like to briefly go over regular expressions. The session will cover the […]

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MySQL 8.0

MySQL 8.0 innodb_dedicated_server

If you haven’t heard the news yet, MySQL 8.0 is apparently the next release of the world-famous database server.
Obviously abandoning plans to name the next release 5.8, Percona Server’s upstream provider relabelled all 5.8-related bugs to 8.0 as follows:
Reported version value updated to reflect release name change from 5.8 to 8.0

What will MySQL 8.0 bring […]

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MySQL 5.7 By Default 1/3rd Slower Than 5.6 When Using Binary Logs

binary logs make MySQL 5.7 slower

Researching a performance issue, we came to a startling discovery:
MySQL 5.7 + binlogs is by default 37-45% slower than MySQL 5.6 + binlogs when otherwise using the default MySQL settings.
Test server MySQL versions used:
i7, 8 threads, SSD, Centos 7.2.1511
mysql-5.6.30-linux-glibc2.5-x86_64
mysql-5.7.12-linux-glibc2.5-x86_64
mysqld –options:

–no-defaults –log-bin=mysql-bin –server-id=2
Run details:
Sysbench version 0.5, 4 threads, socket file connection
Sysbench Prepare: 

Shell

sysbench –test=/usr/share/doc/sysbench/tests/db/parallel_prepare.lua –oltp-auto-inc=off –mysql-engine-trx=yes –mysql-table-engine=innodb –oltp_table_size=1000000 […]

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MySQL is crashing: a support engineer’s point of view

In MySQL QA Episode #12, “MySQL is Crashing, now what?,” Roel demonstrated how to collect crash-related information that will help Percona discover what the issue is that you are experiencing, and fix it.
As a Support Engineer I (Sveta) am very happy to see this post – but as a person who better understands writing than recording – […]

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