I’ve had some questions from people using MySQL Cluster GPL and wanting to move to using MySQL Cluster Carrier Grade Edition, i.e., they want to use MySQL Cluster Manager, MCM, to make their lives much easier, in particular, upgrading (as well as config change ease and backup history).

All I want to do here is to share with you my personal experience on migrating what’s considered a ‘wild’ NDB Cluster to a MCM managed cluster. It’s just as simple to follow the manual chapter Importing a Cluster into MySQL Cluster Manager so at least you can see how I did it, and it might help someone.

[ If you’re not migrating but just looking for further information on NDB Cluster, and came across this post, please please PLEASE look at the …

Dear MySQL users,

MySQL Connector/Net 6.10.3 rc is the fourth release which supports
Scaffold-DbContext, that enables the creation of corresponding model
classes from an existing database that are compatible with Entity
Framework (EF) Core 1.1.

To download MySQL Connector/Net 6.10.3 rc, see the “Development
Releases” tab at http://dev.mysql.com/downloads/connector/net/

Changes in MySQL Connector/Net 6.10.3 (2017-08-18, Release
Candidate)

   Known limitation of this release:

   The use of the SSL protocol is restricted to TCP connections.
   Connections using Unix sockets, named pipes, and shared memory do not
   support SSL mode.

   Functionality Added or Changed

     * The following methods are available for use with EF Core
       in asynchronous command and connection …

Join Percona Chief Evangelist Colin Charles as he covers happenings, gives pointers and provides musings on the open source database community.

Has a week passed already? Welcome back to the second column. A lot of time has been spent neck deep in getting speakers accepted and scheduled for Percona Live Open Source Database Conference Europe 2017 in Dublin, as well organizing the conference sponsors.

Percona Live Europe Dublin

At the time of writing, we are six weeks away from the conference, so a little over a month! Have you registered yet? …

Dear MySQL users,

MySQL Connector/Python 2.1.7 GA is a fifth 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 2.1.7 GA is compatible with MySQL Server versions 5.5 and greater. Python 2.6 and greater as well as Python 3.4 and greater are supported. Python 2.4, 2.5, and 3.1, 3.2, 3.3 are not supported.

MySQL Connector/Python 2.1.7 is available for download from:

http://dev.mysql.com/downloads/connector/python/#downloads MySQL Connector/Python 2.1.7 (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 ChangeLog file included in the distribution contains a brief summary of changes in MySQL …

This Log Buffer Edition covers from various blogs covering the technologies and news of Oracle, SQL Server and MySQL.

Oracle:

Storage Server: datasets, snapshots and performance

A Different Cause for enq: TM – contention

ODA X6-2M – How to create your own ACFS file system

Oracle New Version Numbering

…

It's our pleasure to announce that MySQL Community team is supporting multiple shows around the world. Please find a list of conferences & events where you can find us in August & September below:

NA&LAD

• UbuCon LA,Lima, Peru, Aug 18-19, 2017

  • MySQL Community team is supporting this small Ubuntu conference in LAD as Platinum sponsor.  
• Pacific Northwest PHP, Seattle, US, Sep 9-11, 2017
  • You can find our team at the MySQL Community booth in the expo area.
• Madison PHP, Madison, US, Sep 22-23, 2017
  • MySQL Community team is supporting this PHP conference as Community partner. …

I'm happy to announce that in addition to the official MySQL Community Edition Docker images, we now have official MySQL Enterprise Edition Docker images available in Docker Store! Now you can easily leverage the power of Docker with MySQL Community Edition or MySQL Enterprise Edition.  

What Does All of This Mean?

First some context and general info to help you understand this news a bit more. Docker is a …

Percona announces the release of Percona Monitoring and Management 1.2.1 on August 16, 2017.

For install and upgrade instructions, see Deploying Percona Monitoring and Management.

This hotfix release improves memory consumption.

Changes in PMM Server

We’ve introduced the following changes in PMM Server 1.2.1:

Bug fixes

• PMM-1280: PMM server affected by nGinx CVE-2017-7529. An …

Actually, Mysqlbinlog tools can’t miner mysql binlog exactly correct.

In this post ,a special environment we got may hexadecimal characters what we don’t need.

Read this PDF: Special-code-rollback.pdf

TL;DR: unless you know what you are doing, you should always have a primary key on your tables when replicating in RBR (and maybe even all the time).

TL;DR2: MariaDB 10.1 has an interesting way to protect against missing a primary key (innodb_force_primary_key) but it could be improved.

A few weeks ago, I was called off hours because replication delay on all the slaves from a replication chain