Recently I have been looking at the Vault project as a means to manage secrets for applications and end-users. One of the use cases that immediately drew my attention was the ability to create dynamic role-based MySQL credentials.

Why Dynamic MySQL Credentials?

There are a few reasons why dynamic credentials would be beneficial, all of which can be handled by Vault, including:

• The database environment is too large to manage individual users.
• A need to authenticate on an external service, such as LDAP or GitHub organization.
• Provide credentials to external resources, such as auditors or outside consultants that automatically expire.
• Compliance requirements for strict audit logs for database access.

A High-Level Overview of Vault

Vault is a fairly new project by HashiCorp, the folks behind projects …

Lighttpd is a secure, fast and standards-compliant web server designed for speed-critical environments. This tutorial shows how you can install Lighttpd on an Ubuntu 15.10 server with PHP support (through PHP-FPM) and MySQL. PHP-FPM (FastCGI Process Manager) is an alternative PHP FastCGI implementation with some additional features useful for sites of any size, especially busier sites.

The LZMA algorithm implemented by the xz compression software package is one of the compression algorithms used by TokuDB for MySQL and TokuMX for MongoDB.  Unfortunately, valgrind's memcheck reports an uninitialized variable problem in the …

This article is the second in a two-part series on upgrading MySQL.  The first article, Upgrade from 5.0 directly to 5.7 using mysqldump, discussed performing an upgrade using the mysqldump utility.  We call that a ‘Dump’ Upgrade.  In this article, we will discuss what we call an ‘In Place’ Upgrade, also known as a Binary Upgrade or a Live Upgrade.…

The blog series for MySQL, MongoDB & PostgreSQL administrators

In the previous two blog posts we covered both deploying the four types of clustering/replication (MySQL/Galera, MySQL Replication, MongoDB & PostgreSQL) and managing/monitoring your existing databases and clusters. So, after reading these two first blog posts you were able to add your 20 existing replication setups to ClusterControl, expand them and additionally deployed two new Galera clusters while doing a ton of other things. Or maybe you deployed MongoDB and/or PostgreSQL systems. So now, how do you keep them healthy?

That’s exactly what this blog post is about: how to leverage …

The blog series for MySQL, MongoDB & PostgreSQL administrators

In the previous two blog posts we covered both deploying the four types of clustering/replication (MySQL/Galera, MySQL Replication, MongoDB & PostgreSQL) and managing/monitoring your existing databases and clusters. So, after reading these two first blog posts you were able to add your 20 existing replication setups to ClusterControl, expand them and additionally deployed two new Galera clusters while doing a ton of other things. Or maybe you deployed MongoDB and/or PostgreSQL systems. So now, how do you keep them healthy?

That’s exactly what this blog post is about: how to leverage …

I assume you have read Setting up MySQL Router before reading this.

So we start our First example with the config file used in Setting up MySQL Router sample-router.ini

[logger]
level = INFO

[routing:read_only]
bind_address = localhost
bind_port = 7001
destinations = localhost:13002,localhost:13003,localhost:13004
mode = read-only

[routing:read_write]
bind_address = localhost
bind_port = 7002
destinations = localhost:13005,localhost:13006
mode = read-write

 About different mode options :
[routing:read_only] :
If you connect a client to read-only routing service i.e.…

What is MySQL Router ?

The MySQL Router handles routing of clients requests to specific servers while providing additional benefits like load balancing and failover. Router will be managing the direct routing to servers sitting as a worker node in between the server and client ( user application ).…

This article is continuing the MySQL 5.7 Performance story, started from 1.6M QPS details post, and followed by 1M QPS OLTP_RO article. However, the current story will not be mostly about MySQL 5.7, but also about announced on the same time MariaDB 10.1 GA ;-)

So far, MySQL Team was proud to show 1.6M QPS on Point-Select (SQL) queries, and MariaDB 10.1 GA announce was also claiming an ability to reach 1M QPS, also on Point-Selects, but on …

Anomaly detection sure is a hot topic. We’ve written about it ourselves a number of times, and Preetam Jinka and I just coauthored a book for O’Reilly called Anomaly Detection For Monitoring. One of the challenges, as we’ve discussed so often, is that catch-all, generic anomaly detection is hard to do.

In special cases, however, there’s often a niche use case that can be done well and is highly beneficial. Query behavior changes are an example of that, and I’m happy to announce that VividCortex now has advanced statistical algorithms running to detect important changes to your most important queries continually.

What does query anomaly detection mean? Good question! In general, a lot of anomaly detection techniques try to compare current behavior to past behavior and determine if we’re within ranges of expected behavior.

You’re probably familiar with various ways to do this, such as …