Max Length of a String Feature RRS feed

  • Question

  • I want to load an email dataset into Azure ML for Text Classification.  I plan to store the data in Blob Storage.  Does anyone know the maximum length a string feature can support?

    Thursday, June 11, 2015 4:10 AM


  • Hello! I would use 2GB as the default .NET array limit as a first approximation of the maximum length.

    Note that this is from a Reader module - if you're providing it as an input to a web service's RRS endpoint the limit is drastically smaller due to the JSON serialization limitation.

    Anyway if you were handling that much data I expect you would be using the Batch endpoint :)



    • Proposed as answer by raymondl_msft Monday, June 22, 2015 4:14 PM
    • Marked as answer by neerajkh_MSFT Wednesday, June 24, 2015 9:52 PM
    Thursday, June 11, 2015 2:24 PM