Fixing the Servant not allocated error when running code within DataSphere project cells
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Updated at December 17, 2025
Issue description
When trying to execute code from Jupyter notebook cells within the DataSphere project, you get one or more error messages:
Preparing c1.4 instanceExecute error: Servant c1.4 not allocated: Internal Error
Solution
The Execute error: Servant g1.1 not allocated: Internal Error message may appear due to a temporary lack of free GPUs in DataSphere. Try using another configuration, e.g., c1.8, or execute code in the cell once again later.
If you are using a custom Docker image in your project, check whether you can reproduce the issue on a public image, e.g., on Ubuntu
Tip
If the issue persists for a while, try opening the project page in private mode of your browser; this will rule out issues on the browser cache side.
If the issue persists
If the above actions did not help, create a support ticket
Provide the following information in your ticket:
- Link to the project in DataSphere from the address bar of your browser.
- Screenshots of the error and the code snippet that causes the error.
- Approximate date and time when the issue occurred.
- Information about third-party Docker images used in the project.
- Description of the scenario where you need the
c1.4configuration and issues it will help you solve.