Software Packaging EngineerJob Description & Main Responsibilities

Codership is looking for a part-time Build and Packaging Engineer. We use Jenkins to build various packages for multiple distros and the engineer will take ownership of the build pipeline and extend it to cover additional platforms and testing scenarios.

There are plenty of interesting problems to tackle on the job, from crafting .spec files with complex dependencies to automatically testing no-downtime rolling upgrades of a distributed system.

Main Responsibilities

•  take the ownership of and maintain Galera Cluster packages on Linux (.RPM and .DEB) and BSD

• maintain the automatic package building pipeline and extend it to cover additional platforms and testing scenarios

Desired Skills & Requirements

• knowledge of …

This Percona XtraDB Cluster 5.7.14-26.17 GA release is dedicated to the memory of Federico Goncalvez, our colleague with Percona’s Uruguayan team until his tragic death on September 6, 2016.

Fede, we miss you.

Percona announces the first general availability (GA) release in the Percona XtraDB Cluster 5.7 series on September 29, 2016. Binaries are available from the downloads area or our software repositories.

The full release notes are available …

The first DMR of MySQL 8 was recently released. While a DMR (or Developer Milestone Release) is not yet a GA product, it does come with our commitment that each feature has been tested and qualified for inclusion.

In MySQL 8.0 we have made additional improvements to the MySQL test framework (MTR) and the test suite.…

MySQL 8.0.0 introduces three new miscellaneous UUID functions of IS_UUID(), UUID_TO_BIN() and BIN_TO_UUID() joining the UUID() (in 5.0) and UUID_SHORT() (in 5.1) functions. See 8.0.0 Release Notes.

Thanks to the great work and hosting by Marcus Popp anybody can test out the SQL syntax of MySQL 8.0.0 using db4free without installing anything. If you want a minimal install Giuseppe Maxia provides docker minimal images of 5.0+ versions …

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 Percona-qa and some advanced regex to wade through the many cores generated by the test run. For those of you who know and use pquery-run.sh, this should mean a lot!

[09:41:50] [21492] ====== TRIAL #39308 …

db4free.net was born in 2005 (which makes it older than Twitter or Google Chrome) when MySQL 5.0 was in early development. 11 years went by but one thing always remained the same: the 5 in MySQL’s major version number. MySQL versions went from 5.0 to 5.1 to 5.5, 5.6 and recently to 5.7. There was always this 5.something.

While this 5 will stay around for a bit longer, it is not alone anymore.

Now there is a duplicate of the db4free.net website at

https://mysql8.db4free.net

where you can create a database on a newly set up MySQL 8.0 server!

MySQL 8.0 is in very early development, the first Development Milestone Release (MySQL 8.0.0 DMR) has just been released on September, 12. It will take several months until there will be a final release.

db4free.net makes it easy to try new features early. The …

This blog post will discuss how to use the MySQL super_read_only system variable.

It is well known that replica servers in a master/slave configuration, to avoid breaking replication due to duplicate keys, missing rows or other similar issues, should not receive write queries. It’s a good practice to set

read_only=1

 on slave servers to prevent any (accidental) writes. Servers acting as replicas will NOT be in read-only mode automatically by default.

Sadly, 

read_only

 has an historical issue: users with the SUPER privilege can override the setting and could still run DML queries. Since Percona Server 5.6.21 and MySQL 5.7.8, however, you can use the

super_read_only

 feature to extend the

read_only

One of the main tasks that any DBA has to deal with is certainly data retention. Especially when your developers like to store logging and tracking information inside the database. This is not something that I would recommend (don't try it at home!) but when you're late to the party (read: someone had taken this path before you joined) , then you'll have to live with it.

Data retention in MySQL is usually applied by partitioning the table by RANGE on a selected column, usually containing the row creation timestamp. New partitions are created in advance for the coming days or weeks or months, and a script is used that will run nightly and drop partitions that are older than a set retention.

There are many tools that can be used to automate data retention; I have chosen the excellent pdb-parted, a nice and cozy perl script that you can find in the PalominoDB repository on GitHub (since PalominoDB is no longer in existence, …

A new Group Replication plugin labs release has came out, a little over a week ago. Exciting news! This shows that the team has been working hard to shape up the plugin so that it meets the required feature set, performance and quality standards to be released as GA.…

I have a new blog post on blog.booking.com describing MariaDB 10.1 Optimistic Parallel Replication (with benchmark results):

Evaluating MySQL Parallel Replication Part 4: More Benchmarks in Productionhttp://blog.booking.com/evaluating_mysql_parallel_replication_4-more_benchmarks_in_production.html

If you want to know more about MySQL/MariaDB Parallel Replication and if you are attending