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Introduction

D2C was designed to provide easy scaling for applications and hosts. Check your metrics online and use scaling when you need it. D2C supports horizontal scaling as well as vertical.

Horizontal scaling

Horizontal scaling means an increasing number of containers and changing a configuration when it is a database.

Scaling data services

Data services can be scaled in D2C. Most of them change a configuration after the scaling process (e.g. from StandAlone to MasterSlave).

Open a service you want to scale and click Scale.

Data services scaling

You can also find a scaling button at a containers block on the same page below.

Data services scaling

Choose hosts which you want to be scaled to and click Confirm

Data services scaling window

After that, the scaling process starts, the status of service changes to Scaling. You can check system logs at the service page. The notification comes after the end of the process.

Scaling application and other services

You can scale horizontal almost all application services as well as Docker and NGINX Static in D2C. Open a service page and click Scale.

Open a service you want to scale and click Scale.

Application services scaling

You can also find a scaling button at a containers block on the same page below.

Application services scaling

Choose hosts which you want to be scaled to and click Confirm

Application services scaling window

After that, the scaling process starts, the status of service changes to Scaling. You can check system logs at the service page. The notification comes after the end of the process.

Vertical scaling

Vertical scaling means increasing power of a host (CPU, RAM).

You can resize your hosts in two ways:

  • Resizing CPU and RAM, but not disk size. It can be reversed. That means that you can increase and decrease an instance.
  • Resizing CPU and RAM and the disk size. This is a permanent change and cannot be reversed. That means that you’ll be able only to increase an instance.

To make a resize click Edit or Resize at a host page.

Resizing hosts

Resizing hosts