We’re completing our move of Percona bug tracking into JIRA, and the drop-dead date is December 28, 2017.

For some time now, Percona has maintained both the legacy Launchpad bug tracking system and a JIRA bug tracking system for some of the newer products. The time has come to consolidate everything into the JIRA bug tracking system.

Assuming everything goes according to schedule, on December 28, 2017, we will copy all bug reports in Launchpad into the appropriate JIRA projects (with the appropriate issue state). The new JIRA issue will link to the original Launchpad issue, and the new JIRA issue link is added to the original Launchpad issue. Once this is done, we will then turn off editing on the Launchpad projects.

Q&A Which Launchpad projects are affected?

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Galera Cluster’s automatic node provisioning simplifies the complexity of scaling out a database cluster with guaranteed data consistency. SST and IST improve the usability of initial data synchronization without the need to manually backup the database and copy it to the new node. Combine this with Galera's ability to tolerate different network setups (e.g, WAN replication), we can now migrate the database between different isolated networks with zero service disruption.

In this blog post, we are going to look into how to migrate our MySQL Galera Cluster without downtime. We will move the database from Amazon Web Service (AWS) EC2 to Google Cloud Platform (GCP) Compute Engine, with the help of a relay node. Note that we had a similar blog post in the past, but this one uses a different approach.

The …

If that title looks familiar, it is because a few months ago I posted about LDAP with auth_pam and PHP to authenticate against MySQL.

The good news is that recompiling the connector for Python is a lot easier than for PHP. With PHP, the complexity was due to there being one monolithic package to recompile. The bad news is that there is a slight hitch with Python.

Skip down to the hitch and how to compile MySQLdb for use with auth_pam plugin.

As a quick reminder, here is a repeat of the background:

Background
There are two plugins that can be used. From the documentation, the two plugins are:

• Full PAM plugin called auth_pam. This plugin uses …

In this blog, we will answer questions from our webinar on Percona XtraDB Cluster 101.

Recently (7 Dec 2017) I presented a webinar about Percona XtraDB Cluster 101. Firstly, thanks to all the attendees: we had a great webinar with quite some interesting questions and feedback.

Through this blog, I’ll answer most of the questions that were raised during the webinar.

Q. How does the need for the acknowledgment from other nodes affect the speed of writes?

A. There are two parts to replication: delivering a transaction (including acknowledgment) and applying the transaction. …

…but don’t just take our word for it… DBTA Trend-Setting Products for 2018

The online industry news magazine Database Trends and Applications (DBTA) has included Percona Monitoring and Management in its roundup of Trend-Setting Products in Data and Information Management for 2018.

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Join Percona’s, CEO and Co-Founder, Peter Zaitsev as he presents InnoDB Performance Optimization on Wednesday, December 20, 2017, at 11:00 am PST / 2:00 pm EST (UTC-8).

InnoDB is one of the most commonly used storage engines for MySQL and Percona Server for MySQL. It balances high reliability with high performance and is the focus of the majority of storage engine development by the MySQL and Percona Server for MySQL teams.

This webinar looks at InnoDB, including new developments in MySQL 5.7 as well as Percona Server for MySQL. In it, Peter explains how to use it, and many of the configuration options that help you to get the best performance from your application.

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Percona announces the release of Percona Monitoring and Management 1.5.3. This release contains fixes for bugs found after the release of Percona Monitoring and Management 1.5.2, as well as some important fixes and improvements not related to the previous release.

Improvements

• PMM-1874: The read timeout of the proxy server (/prometheus) has been increased from the default of 60 seconds to avoid nxginx gateway timeout error when loading data-rich dashboards.
• PMM-1863: We improved our handling of temporary Grafana credentials

Bug fixes

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Multi-channel replication is one of the  great feature shipped with MySQL 5.7, With allowed the capability of slave to have many masters, having a channel for each master by which they replicate. Each channel id has a unique “channel_name”

Multi-Channel Replication

In the above DB Architecture “channel_1, channel_2 and channel_3” represent the channel_name used for replication from different MySQL servers ( Source ). In this blog we are not going see about configuration of multi_source replication, rather we are going to see about rolling back multi-source replication in MySQL. Recently we were working on a client, where we had deployed multi-channel replication replication from two master onto a single slave, sync was happening very fine Then came the situation to break the replication from …

The schedule of the next edition of the MySQL & Friends Devroom is now on-line also on the official FOSDEM website.

As you can see we by shrinking the last two talks (no break) we were able to add one extra session. The committee selected the next one, which mean I will have the honour to present again at FOSDEM too.

I hope you will enjoy this day. Don’t forget the MySQL Community Dinner (more to come soon about this on this website) and the extra free day organized by the MySQL Team on Friday (you need to …

It was a long time ago so I won’t write about the conference (it was good as always), but at least I share the slides of my talk here.