August 6, 2014 By Severalnines

Well over a thousand sessions have been submitted for the OpenStack Summit and two of them includes our good selves! We’ve submitted two talks with partners of ours: 

• ClusterControl: Efficient and reliable MySQL Management, Monitoring, and Troubleshooting for OpenStack HA)
• Deploying Databases for OpenStack

… and would love it if the talks were included in the final agenda. For that to happen, we need a few more of your votes today!

The OpenStack Summit is a five-day conference for developers, users, and …

So of course Percona has documentation that explain the process. The goal of this blog is to go into a little more detail in hopes that can help someone.

Hyperlinks for review:

• CentOS - http://www.percona.com/doc/percona-xtradb-cluster/5.5/howtos/cenots_howto.html
• Ubuntu - http://www.percona.com/doc/percona-xtradb-cluster/5.5/howtos/ubuntu_howto.html
• Installing Percona XtraDB Cluster from Binaries -   
  • http://www.percona.com/doc/percona-xtradb-cluster/5.5/installation.html
…

Recently, I’ve had reason to poke at MySQL performance on some pretty cool hardware. Comparing MySQL 5.6 to MySQL 5.7 is a pretty interesting thing to do when you have many CPU cores.

The improvements to creating read views in InnoDB is absolutely huge for small statements with large concurrency – MySQL 5.7 completely removes this as a bottleneck – as much as doubling maximum SQL queries per second, which is a pretty impressive improvement.

I haven’t poked at the similar improvements in Percona Server on this hardware setup – so I can only really guess as to the performance characteristics of it… If comparing to older MySQL versions, Percona Server 5.5 is likely to outperform MySQL 5.5 thanks to this optimization.

But I have to say… MySQL 5.7 is impressive …

May 23, 2014 By Severalnines

If you need to deploy a database cluster behind your corporate firewall, on servers with no internet access, then this blog is for you. Most of the installation tutorials out there require servers to have an internet connection, and that would not work very well with companies under strict policies and compliance guidelines. 

Our online Galera Configurator supports deployment without Internet connection for Percona XtraDB Cluster. You would need to prepare a minimum of four hosts (three DB nodes and one management node), generate a Deployment Package from the Configurator and copy it to the ClusterControl host. In this post, we will show you how to deploy Percona XtraDB Cluster 5.5 in an environment without internet connection on CentOS 6.5 (installed with minimal installation). Our setup is …

As many of you already know, PLMCE is an annual MySQL
community conference and Expo organized by Percona in the month of April
(usually). It is a great conference, not only to meet new and eminent people in
MySQL and related database fields, but also to attend interesting talks, and
also to give some.

This year I spoke about synchronous replication at a higher level. The talk was
titled “ACIDic Clusters: Review of current relational databases with synchronous replication”. Having previously given talks with boring titles (but interesting content), this time I decided to go with an interesting title, and it seemed to fit well with topic being discussed.
…

There are many MySQL related IRC discussion channels as the ecosystem itself grows. I join the following. Are there any that I’m missing?

Freenode (irc.freenode.net):

• #mysql – main channel for all kinds of end user MySQL related discussions (the noisiest of the lot, naturally)
• #maria – main channel for all kinds of MariaDB related discussions
• #webscalesql – for all kinds of WebScaleSQL discussions
• #percona – main channel for all kinds of Percona related discussions
• #tokutek – main channel for Tokutek discussions (TokuDB or TokuMX)
• SkySQL-specific channels: #maxscale and #mariadb-mgr

OFTC (irc.oftc.net):

• #debian-mysql – for all kinds of Debian MySQL related bits (packaging, bugs, etc.)

Related posts:

1. …

April 24, 2014 By Severalnines

ClusterControl 1.2.6 introduces integration with Active Directory and LDAP authentication. This allows users to log into ClusterControl by using their corporate credentials instead of a separate password. LDAP groups can be mapped onto ClusterControl user groups to apply roles to the entire group, so it is very convenient for larger organizations who have a centralized LDAP-compliant authentication system. This blog shows you how to configure LDAP authentication in ClusterControl, and allow users to use their Active Directory or LDAP username and password to log in to ClusterControl. 

LDAP authentication can be configured from ClusterControl, in the Admin dashboard (ClusterControl > Admin > LDAP Settings). If you are running ClusterControl v1.2.5 or older, please …

April 22, 2014 By Severalnines

Join our upcoming webinar New Features Webinar on ClusterControl 1.2.6 - May 13th 2014 with live demo. Click on following banner to register:

The Severalnines team is pleased to announce the release of ClusterControl 1.2.6. This release contains key new features along with performance improvements and bug fixes. We have outlined some of the key features below. 

Highlights of ClusterControl 1.2.6 include:

• Centralized Authentication using LDAP or Active Directory
• Role-Based Access Control 
• OpenStack: Galera Deployment Automation
• Hybrid setups with Galera and Asynchronous MySQL Replication
• Manage multiple Galera …

Join 25,000 others and follow Sean Hull on twitter @hullsean. Are you serious about backups? If you’re just using Amazon EBS snapshots, that may not be sufficient. There’s a good chance it won’t protect you against your next data loss. That’s why I like to have a few different types of backups Also: 5 more […]

April 10, 2014 By Severalnines

In the wake of recent concerns and debates raised around the Heartbleed bug, we wanted to update Severalnines ClusterControl users on any impact this bug might have on ClusterControl & associated databases and/or applications.

Background

If your ClusterControl's web application has been accessible on the internet, then most likely you have also been exposed to the Heartbleed OpenSSL security bug, see: http://heartbleed.com for more details. 

By default, our database deployment script enables SSL encryption for the Apache web server on the Controller host with a generated private SSL key and a self-signed certificate. SSL encryption is used between the UI and the Controller REST API if you have clusters added with HTTPS, which we do by default. The content that is …