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Once logged in, users are given a choice of environment to use for their Jupyter session session from a dropdown menu at the top of the page. The DSS offers a single environment to users: "ECMWF Data Store Service".
To start your session, click the "Start" button, if enough resources are available you will be assign a jupyter session which will be running for the length of time stated in the resource provisions table below.
Just above the "Start" button there is a "Version" dropdown which refers to the version of the environment image used to use create in your session (i.e. the versioning of the various software packages installed). To ensure that the software is kept up-to-date, the environment image will be updated several times a year. Only the "Default" environment image is officially supported.
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. The "Rollback" version provides the previous version of the image to assist in cases where a software update has resulted in breaking workflows. The "Rollback" image is only available for a limited time and we encourage users to update their workflows to use the "Default" image as soon as possible.
Figure1: Selecting Starting a DSS from session from ECMWF JupyterHub launcher page
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| Given the complexities in environment management and software versioning, we only provide support for workflows using the default earthkit environment. |
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