FAQs

Frequently asked questions related to ClusterControl and Severalnines.

General

Is ClusterControl free?

ClusterControl has a Community Edition that is free forever, available features include deployment and monitoring of clusters/servers. See the ClusterControl product page or Key Features.

After installation, you will get a 30-day free trial license (no credit card or signing required) with all enterprise features enabled. After the trial license expires, it will default back to the Community edition.

Is there a live demo site where I can try out ClusterControl?

There is no live demo site available at the moment, although we have some webinars that show the product in detail. We recommend users to install ClusterControl on a test server/VM and give it a try.

You can also request a demo by filling up our Request Demo form so we can prepare a demo for you – usually, we can do this within 24 to 48 hours after the initial inquiry.

Can I purchase the license for the first year only?

Subscriptions are annual and include software licenses, all updates, and technical support. At the end of the subscription period, you can choose to renew the subscription or continue with the Community Edition. When the license expires, ClusterControl defaults to the Community Edition.

My 30-day demo license has expired but I haven’t had enough time to test ClusterControl. Can I request for an extension?

Of course. Please use our contact us page or email directly to sales[at]severalnines.com.

We’ll be happy to understand your specific requirements. Please contact us at sales[at]severalnines.com.

Can I resell your product?

Yes, we have a reseller program. Please email us at sales[at]severalnines.com.

Who uses ClusterControl?

We have over 100 paying customers, including the likes of Cisco, BT, CNRS, Ping Identity, Technicolor, and Eurovision. A list of references and case studies can be found on the Case Studies page. See also Target users.

Technical

Do I need to be a DBA to use ClusterControl?

No. We build ClusterControl to be used by DBAs as well as SysAdmins and DevOps to easily manage their databases.

Does ClusterControl run on Windows?

No. ClusterControl only runs on RHEL-based and Debian-based with x86-64 architecture.

How do I upgrade ClusterControl?

Follow the upgrade steps as described in our offical documentation page. See Upgrading ClusterControl.

I’m using ClusterControl community version. Which support channel should I use?

You can open a thread in our public forum. In case you have to share files or logs that might contain sensitive information, please submit a support request.

Can I install ClusterControl on RHEL-based system but my database cluster is running on Debian?

Yes. Starting from 1.2.11, ClusterControl does not depend on the DB nodes’ operating system any longer.

Can I use ClusterControl in an offline environment (without Internet)?

Yes. However some features might not be working well, as explained in Offline Installation page. Also, see this tutorial, Deploy Database Cluster in Offline Environment.

Can I have a mix of different SSH users per cluster?

It’s possible but not recommended since it will make the deployment more complex. If you choose root as the SSH user, you should use root user for all nodes across the cluster.

Can I use a non-privileged SSH user for ClusterControl?

Unfortunately, no. ClusterControl requires super-privileged SSH user to perform tasks like deployment, administration and management of the database nodes. See Operating system user.

What is difference of MySQL Galera Cluster, Percona XtraDB Cluster and MariaDB Galera Cluster?

The Galera technology is developed by Codership Oy and is available as a patch for standard MySQL and InnoDB. Percona and MariaDB leverage the Galera library in Percona XtraDB Cluster (PXC) and MariaDB Galera Cluster respectively.

Since they all leverage the same Galera library, replication performance should be fairly similar. The Codership build usually has the latest version of Galera, although that could change in the future. See Galera Cluster Comparison – Codership vs Percona vs MariaDB.

I found a bug. Where should I report it?

Please report the bug by submitting a support request. For Enterprise customers, bug fixes are provided soonest possible with custom builds.

My cluster is down. What should I do?

Please submit a support request at our support site. If you are a paying customer, please do this with your company email address so the ticket can be assigned to the appropriate support SLA. Please also include an Error Report.

How can I submit a feature request?

You can either use our Feature Request page or submit a ticket at our support site.