null point exception - after executing left join recipe on two dataset.

User23 Dataiku DSS Core Designer, Registered Posts: 2 ✭✭✭

Getting this warning for output. Also getting a null point exception while executing left join on two dataset. It is impacting the final dataset/ result. PFAMicrosoftTeams-image (18).pngMicrosoftTeams-image (16).png

Operating system used: windows



  • Miguel Angel
    Miguel Angel Dataiker, Dataiku DSS Core Designer, Dataiku DSS ML Practitioner, Dataiku DSS Adv Designer, Registered Posts: 118 Dataiker


    The warning is quite self explanatory. The column 'Material_Qty' has a bigint type, meaning integers are the only valid data. However, it is being fed floats.

    The error "Null pointer exception" is too generic. We would need job logs for that. However before doing that, this error is thrown when an application tries to use an object reference which has a null value. Consequently, I would suggest checking the data inputs to the recipe; Do the datasets exist? Do the columns have data? Is the data valid according to the schemas of the datasets? This is particularly important in the case of the join key s.

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