On slave_parallel_workers and the logical clock
How can you tell if a given workload on the master could be replicated with many parallel workers on the slave? The slave_parallel_type=LOGICAL_CLOCK is an implementation of a Lamport clock. The...
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Thread_Statistics and High Memory Usage
In this blog post, we’ll look at how using thread_statistics can cause high memory usage. I was recently working on a high memory usage issue for one of our clients, and made some interesting...
View ArticleMariaDB 10.2.7 now available
MariaDB 10.2.7 now available dbart Wed, 07/12/2017 - 11:21 The MariaDB project is pleased to announce the immediate availability of MariaDB 10.2.7. See the release notes and changelog for details....
View ArticleLog Buffer #516: A Carnival of the Vanities for DBAs
This Log Buffer Edition covers Oracle, SQL Server and MySQL. Oracle: 12.2 New Feature: the FLEX ASM disk group part 2 Oracle ASM in Azure corruption – follow up Set-based processing ADF 12c BC Proxy...
View ArticleMariaDB 10.2.7 now available
The MariaDB project is pleased to announce the immediate availability of MariaDB 10.2.7. This is a stable (GA) release. See the release notes and changelog for details. Download MariaDB 10.2.7 Release...
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Analysis of Financial Time Series Data Using MariaDB ColumnStore
Analysis of Financial Time Series Data Using MariaDB ColumnStore Satoru Goto Thu, 07/13/2017 - 11:31 MariaDB ColumnStore is a GPLv2 open source columnar database built on MariaDB Server. It is a fork...
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Gh-ost benchmark against pt-online-schema-change performance
In this blog post, I will run a gh-ost benchmark against the performance of pt-online-schema-change. When gh-ost came out, I was very excited. As MySQL ROW replication became commonplace, you could...
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Setting Up Percona PAM with Active Directory for External Authentication
In this blog post, we’ll look at how to set up Percona PAM with Active Directory for external authentication. In my previous article on Percona PAM, I demonstrated how to use Samba as a domain, and...
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Upcoming Webinar, 19th July, What is New in Tungsten Replicator 5.2 and...
Continuent Tungsten 5.2 is just around the corner. This is one of our most exciting Tungsten product releases for some time! In this webinar we’re going to have a look at a host of new features in the...
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BuzzConf is looking for technologists, innovators and entertainers!
MySQL is proud to announce that we are going to support and actively attend a very unique event BuzzConf in Australia. It’s hold on December 1-3, 2017 in Phoenix Park, AU. BuzzConf is a...
View ArticleHow to Setup Magento 2 With Varnish and Apache on Ubuntu 16.04
Magento is a free and open source Content Management System built in PHP, Zend framework and MySQL database. It is very popular eCommerce web application. In this tutorial, we will learn how to install...
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A Little Trick Upgrading to MySQL 5.7
In this blog post, I’ll look at a trick we use at Percona when upgrading to MySQL 5.7. I’ll be covering this subject (and others) in my webinar Learning MySQL 5.7 on Wednesday, July 19, 2017. We’ve...
View ArticleMySQL 8.0: Removing support for old temporal datatypes
MySQL 5.6 introduced the fractional second precision for temporal data types – TIME, DATETIME, and TIMESTAMP, with up to microseconds (6 digits) precision. Along with providing fractional second...
View ArticleMySQL Document Store Video Series
I am starting a series of videos on the MySQL Document Store. The Document Store allows those who do not know Structured Query Language (SQL) to use a database without having to know the basics of...
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Book Review – High Performance MySQL (3rd edition)
Introduction I either have time for reading or writing, but not both. Now that the first edition of High-Performance Java Persistence is done, I can catch up on the many books I planned on reading but...
View ArticleFun with Bugs #53 - On Some Percona Software Bugs I've Reported
So far in this series I had written only/mostly about MySQL server bugs. Does it mean that there are no unique or interesting bugs in other MySQL-related software or MySQL forks and projects that use...
View ArticleMySQL Connector/Python 8.0.4-dmr has been released
Dear MySQL users, MySQL Connector/Python 8.0.4 dmr is the fifth development release of the MySQL Connector Python 8.0 series. This series adds support for the new X DevAPI. The X DevAPI enables...
View ArticleThe MySQL 8.0.2 Milestone Release is available
The MySQL Development team is happy to announce our 8.0.2 development milestone release (DMR), now available for download at dev.mysql.com. (8.0.2 adds features to 8.0.1 and 8.0.0). The source code is...
View ArticleAnnouncing MySQL Server 5.7.19, 5.6.37, and 5.5.57
MySQL Server 5.7.19, 5.6.37, and 5.5.57, new versions of the popular Open Source Database Management System, have been released. These releases are recommended for use on production systems. For an...
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Upcoming Webinar Wednesday, July 19, 2017: Learning MySQL 5.7
Join Percona’s, Technical Services Manager, Jervin Real as he presents Learning MySQL 5.7 on Wednesday, July 19, 2017 at 10:00 am PDT / 1:00 pm EDT (UTC-7). Register Now MySQL 5.7 has a lot of new...
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