R write.dataset error

UserBird

Here is my 2 lines R code (recipes)

ctg <- read.dataset("testIn")    
write.dataset(ctg,"testOut")

I have the following messages and error:

[1] "Start writing table to file ..."
[1] "Done writing table to file ..."
Error in write.dataset(ctg, "testOrder") : 
  Unable to write dataset  TRAININGPA.testOrder : RuntimeException: Session  doesn't exist

Do you know where is the problem ?

Thanks

jereze

Hi,

For recipes:

In a general way, to work with R recipes, you would need to configure R first, then a basic R recipe would be:

library(dataiku)

# Input dataset
data <- read.dataset("name_dataset_in")

# Output dataset
write.dataset_with_schema(data,"name_dataset_out")

For notebooks:

It works the same way than for recipes (I also recommend using dataset_with_schema()).

But, you need to create the output dataset first.

Also, you should write in a managed dataset, it would prevent from some problems.

To create a manage dataset, click on the "all dataset types..." when you create a new dataset, then you will get this screen:

Read more about managed datasets.

allionep

The problem only appears in notebook case. It runs inside a recipe.

Thanks.

Pascal

jereze

I updated my answer according to the details you provided. If it still does not help you, we will need the logs of your instance.