LanguageGB
Managed Java VM

Change your Java VM size

Move up a size before your machine is built, or after it is running.

What this means

What this means

The two cases work differently, because before your machine exists there is nothing to resize and nothing has been paid. After it exists, a size change is a real change to a real machine.

Before you start

Before you start

Know which case you are in. If your order still shows as queued or awaiting build, it has not been built yet.

Step-by-step guidance

Step-by-step guidance

  1. Before it is built: open the Java VM page in the portal, find your request in the list, and change the size in the dropdown. It applies at once and costs nothing.
  2. After it is running: open the service in the portal and use Upgrade your Java VM size.
  3. Pick the size you want. The price shown is the difference from what you already pay, not the full price of the new size.
  4. Pay by mobile money, card or PayPal, as with anything else.
  5. We will contact you to agree a time for the change.
  6. At the agreed time the machine gets more vCPU, memory and disk, and restarts once.

What CM Cloud support will review

What CM Cloud support will review

Support will confirm the new size suits what your application is actually doing before scheduling it — a bigger machine does not help an application that is waiting on a database.

What is not automated yet

What is not automated yet

Resizing a running machine is not instant and is not silent. It needs a restart, so we agree a time with you rather than doing it the moment payment clears. If your application does not size its heap from the machine, we will tell you what to change so the extra memory is actually used.

Safety note

Safety note

Your data, your domain and your certificate are untouched by a resize. The only visible effect is one short restart at a time you agreed.

Safe next action

Safe next action

If your order is still queued, change the size yourself on the Java VM page. If your machine is running, open its service page and choose the size you need.

Contact Support