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 …

I personally have always enjoyed the Ubuntu Developer Summits (UDS), but nowadays they have been converted to the Ubuntu Online Summits (UOS). Attending them is not always convenient (timezone issues, might be travelling, etc.) so I watched the recorded video of a session I was interested in: MySQL & Variants in 16.04.

My key takeaways

1. Ubuntu 16.04 Xenial Xerus is an LTS release.
2. The term “cross-grade” is used a lot (it is not about downgrading/upgrading, but being able to use MySQL or MariaDB or Percona Server interchangeably)
3. It would be nice to see MySQL 5.7 in this release (for Xenial as well as Debian Stretch). From Oracle there is a new packager taking over the task (Lars)
4. MySQL 5.5 is still the default in Debian, and there needs to be upgrades tested between 5.5 to 5.7 (it looks …

Continuing on with the cloud theme, I think its worth noting that since mid-2014, Rackspace has offered MariaDB (as well as MySQL and Percona Server) in the cloud, as part of their Cloud Databases offering. It’s powered by OpenStack.

Now there is an additional “High Availability instance” being offered — this gives you up to two replicas per database instance, you have the ability to load balance reads across all replicas (pretty standard), but the cool thing to try out: failover is automatic. …

Percona is pleased to announce the availability of Percona Toolkit 2.2.16, released on November 9, 2015. Percona Toolkit is a collection of advanced command-line tools to perform a variety of MySQL server and system tasks that are too difficult or complex for DBAs to perform manually. Percona Toolkit, like all Percona software, is free and open source.

This release is the current GA (Generally Available) stable release in the 2.2 series. It includes new features and bug fixes as well as continued preparation for MySQL 5.7 compatibility. Full details are below. Downloads are available here and …

Mon, 2015-11-09 14:44diptijoshi

MaxScale is an intelligent database gateway for high availability, scalability, security, interoperability and manageability beyond MariaDB and MySQL. As the gateway between client applications and backend databases, MaxScale insulates the client applications from complexities of the backend database servers and clusters.

MaxScale’s architecture is highly configurable consisting of a core and database aware plugin modules. This flexible and configurable plugin architecture of MaxScale has enabled a wide variety of use cases for the community:

• Securing your database
• Minimizing maintenance downtime
• Migrating your database
• Ensuring uptime
• Scaling your database
• Interoperating with other databases

In this blog we look at how MaxScale helps minimize database access down time for client applications. Following …