In this article, I will show you how it’s possible to perform an online migration from a 3 members Galera cluster setup (in this case I’m using PXC 5.7.14) to a 3 members MySQL Group Replication cluster setup (MySQL Community 5.7.17).

Don’t forget that before adopting Group Replication as database backend, you should validate that your application do match GR requirements and limitations. When this is validated, you can start !

So first, let’s have a look at the current situation:

We have an application (sysbench 0.5), reading and writing to a Galera Cluster ( …

Hi dear all,
I would like to share our experimental tests about, writing UDF with Python.
So the basic idea was writing a UDF for factorial calculation. The interesting part was to move factorial calculation logic to Python code and then calling this Python file inside UDF code.

Here is the repo link -> UDFs-written-in-Python

The factorial calculation is here -> factorial.py
UDF code is here -> factorial.cc

Basic idea with UDF code quite simple as it has 3 parts:
1. initialization part -> factorial_init() -> all necessary checks reside here
2. main logic -> …

Dear MySQL Users,

A new GA (general availability) version of MySQL Connector/C++ has
been made available: MySQL Connector/C++ 1.1.8 GA. The MySQL
Connector/C++ provides a C++ API for connecting client applications to
the MySQL Server 5.5 or newer.

You can download the production release at:

http://dev.mysql.com/downloads/connector/cpp/1.1.html

MySQL Connector C++ (Commercial) will be available for download on the
My Oracle Support (MOS) website. This release will be available on eDelivery
(OSDC) in next month’s upload cycle.

The MySQL driver for C++ offers an easy to use API derived from JDBC
4.0. MySQL Workbench has used it successfully for years.

We have improved the driver since the last GA release. Please see the
documentation and the CHANGES file in the …

Welcome to this week’s Planets9s, covering all the latest resources and technologies we create around automation and management of open source database infrastructures.

As stated in the MySQL Cluster documentation:

Partition.  This is a portion of the data stored by the cluster. There are as many cluster partitions as nodes participating in the cluster. Each node is responsible for keeping at least one copy of any partitions assigned to it (that is, at least one replica) available to the cluster.

According to my understanding for the previous paragraph, if we have a cluster of 6 datanodes we should have 6 partitions for each NDB table. I claim that this is not true for all cases – at least, after the introduction of ndbmtd (Multi-Threaded Daemon) in MySQL Cluster 7.2 .
In this post, I’ll do some …

Percona announces the release of Percona XtraDB Cluster 5.7.16-27.19 on December 15, 2016. Binaries are available from the downloads section or our software repositories.

Percona XtraDB Cluster 5.7.16-27.19 is now the current release, based on the following:

• Percona Server 5.7.16-10
• Galera Replication library 3.19
• wsrep API version 26

All Percona software is open-source and free.

…

Welcome to a new series of blogs: Percona Live featured tutorial speakers! In these blogs, we’ll highlight some of the tutorial speakers that will be at this year’s Percona Live conference. We’ll also discuss how these tutorials can help you improve your database environment. Make sure to read to the end to get a special Percona Live 2017 registration bonus!

In this Percona Live featured tutorial, we’ll meet Giuseppe Maxia, Quality Assurance Architect at VMware. His tutorial is on MySQL Document Store: SQL and NoSQL United. MySQL 5.7 introduced document store, which allows asynchronous operations …

Related resources  Customizing your database backups with ClusterControl  Become a ClusterControl DBA - Safeguarding your data  Webinar: Become a MySQL DBA - Backups  Download ClusterControl

This week we’re happy to announce that our new DevOps Guide to Database Backups for MySQL & MariaDB is now available for …

Dear MySQL users,

MySQL Connector/Python 2.1.5 GA is a third GA version of 2.1 release
series of the pure Python database driver for MySQL. It can be used for
production environments.

MySQL Connector/Python version 2.1.5 GA is compatible with MySQL Server
versions 5.5 and greater. Python 2.6 and greater as well as Python 3.3
and greater are supported. Python 2.4, 2.5 and 3.1, 3.2 are not
supported.

MySQL Connector/Python 2.1.5 is available for download from:

http://dev.mysql.com/downloads/connector/python/#downloads

The ChangeLog file included in the distribution contains a brief summary
of changes in MySQL Connector/Python 2.1.5. For a more complete list of
changes, see below or online at:

…

After MySQL installation, If you don’t have any enterprise level / any GUI interface for monitoring, backup then one of the option is, write your own scripts to automate these tasks.
In this Blog post, we are going to see few monitoring and backup scripts with covering common security issues.

• Credential security
• mysql_config_editor and Credential security
• Monitoring scripts
• backup scripts

Credential security

Following is a simple script, which will monitor MySQL service. In case MySQL …