"A cross-region multi-datacenter database infrastructure translates into a powerful competitive advantage for our global clients who require geolocality and cannot afford any downtime", says Ibrahim Hamouda, CEO Sphinx Information Technologies.
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"When running on virtual cloud instances, we had to be prepared to lose an instance at any time. Achieving it at the web layer was relatively straightforward, because of the stateless nature of of the web servers. However, dealing with cloud server Roulette would be more challenging at the database layer", says Conor Owens, Head of Operations.
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"Severalnines is so ingrained in our database infrastructure that every operational exercise we go through involves using the tool, from provisioning new nodes to rolling upgrades and patches.", says Renier du Plessis, Digital Operations Manager at Mail & Guardian Online.
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"Thanks to Severalnines and its ClusterControl™, we decreased the time to deploy MySQL® Cluster from a week to about 2 hours. The automation of our database management tasks allowed us to improve DBA productivity and lower our costs.", says Werner van Driessche, System Administrator at Technicolor.
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"ClusterControl™ was the best available solution for monitoring and managing our MySQL® Cluster backend. It delivered the automation necessary to meet the needs of our telco-grade environment," says Yeoh Chun Yeow, Senior Researcher at Telekom Malaysia R&D. "Thanks to these capabilities, we could deliver a telco-grade system without paying the telco price".
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We leveraged the Severalnines Cluster Configurator in a project at a big German operator.

We went in production last summer, and it would not have been possible without the Severalnines Cluster Configurator. Our whole setup is very stable.

We currently have two clusters running, one in our development environment and one in our staging environment. The latter will become the production cluster. Your product worked very nicely, and was easy to install.

First of all I would like to thank you for your contribution to the open source community and to congratulate you for the set of useful tools you created. We used your Severalnines Configurator to set the initial configuration of the cluster, and afterwards, we used CMON (ClusterControl Monitor) to monitor it.

The Severalnines Configurator saved us a lot of time dealing with building and installing MySQL Cluster. As a general comment about the Severalnines Configurator, I heartily endorse it, and would go so far as to say that I wouldn't want to configure a MySQL Cluster without it! Thank you for an excellent product.

Severalnines website is wonderful and I think this is the best tuning site for mysql cluster. Very helpful for configuration, support and to understand mysql cluster administration.

We currently run several clusters. Thanks for creating a great set of tools. We had been looking for something like this for a long time.

The Severalnines Configurator saved us countless hours of configuration and allowed us to get up and running in Beta very quickly.  The "rolling restart" script, in particular, is a great way to learn how to add/remove/replace SQL and NDB nodes without downtime.  (And it goes without saying that the Severalnines Sandbox is the best, fastest and cheapest way for new colleagues to become familiar with Cluster!)

Despite the fact that EBS performance under AWS is not as high as it would be with dedicated hardware, MySQL Cluster can deal with it just fine with an out-of-the-box Severalnines configuration and, with the right configuration tweaks, very heavy load.

We have also been using Severalnines' CMON tool (ClusterControl Monitor) and will be trying the latest version (1.1.4).  Can't understand how anyone can run Cluster without it.