I have trouble with the visual presentation in the "prepare" view. The problem is that the name of the current dataset is displayed with very large characters, hiding other elements (besides being unreadable), and most importantly, it makes it impossible to change the sample size - with the result that some operations cannot be previewed due to lack of memory, and this in turn makes it impossible to root out errors... I attach a screen clip of how it looks; if I attempt to press "Configure sample", the only thing I get is the link to the dataset, which is not very useful.
Until this is resolved, is there any other way I can change the sample size for a dataset? I cannot seem to find any "property" or other setting anywhere.
Your browser size is probably a bit too small for Dataiku DSS to feel at ease, hence some elements wrap around :/
As an alternative to access the sample settings you can use the left drawer:
To edit the sample size in a preparation script, you can click on design sample, hopefully this is not blocked in your view.