Permission Denied (storing a plot in a folder with python after updating to DSS 8.0.2)

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MRvLuijpen
MRvLuijpen Partner, L2 Admin, L2 Designer, Dataiku DSS Core Designer, Dataiku DSS & SQL, Dataiku DSS ML Practitioner, Dataiku DSS Core Concepts, Neuron 2020, Neuron, Dataiku DSS Adv Designer, Registered, Dataiku DSS Developer, Neuron 2021, Neuron 2022, Frontrunner 2022 Finalist, Frontrunner 2022 Winner, Frontrunner 2022 Participant, Neuron 2023 Posts: 107 Neuron

Hello Community,

I am a bit puzzled by the following:

We upgraded our DSS instance from 7.0,.1 to the latest version 8.0.2 and have a small test project that contains of a few datasets, a visual group recipe and two simple python recipes (adding of a calculated column and storing a seaborn plot into a folder.)

When running the last python recipe to store a seaborn pairplot into the folder we receive an error 13

Error in Python process: At line 36: <class 'PermissionError'>: [Errno 13] Permission denied: '/appl/dataiku/dss_data/MYPROJECT/a3fo0ZBA/iris_scatter.png'.

This happens on our UAT instance which we are hosting on Premise. On our Development instance on Premise this error does not occur. The error also doesn't occur on our cloud versions of both DEV and UAT instance.

We have no idea why this happens or how we can correct this.

Hope someone can help us solve this.

Thanks in advance,

Marc Robert

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Best Answers

  • Ignacio_Toledo
    Ignacio_Toledo Dataiku DSS Core Designer, Dataiku DSS Core Concepts, Neuron 2020, Neuron, Registered, Dataiku Frontrunner Awards 2021 Finalist, Neuron 2021, Neuron 2022, Frontrunner 2022 Finalist, Frontrunner 2022 Winner, Dataiku Frontrunner Awards 2021 Participant, Frontrunner 2022 Participant, Neuron 2023 Posts: 411 Neuron
    edited 3:18PM Answer ✓
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    Hi @MRvLuijpen
    . These are the things I would do:

    • Have you checked the permissions of the folder where the image is being stored?
    • Is the `dataiku` user the owner of the folder?
    • Maybe the file iris_scatter.png already exists and somehow in the upgrade it became a read-only file?

    A command like

    ls -alrh /appl/dataiku/dss_data/MYPROJECT/a3fo0ZBA/iris_scatter.png
    ## or
    ls -alhrt /appl/dataiku/dss_data/MYPROJECT/a3fo0ZBA

    might shed some more light into the problem.

    Hope this helps!

    Ignacio

  • MRvLuijpen
    MRvLuijpen Partner, L2 Admin, L2 Designer, Dataiku DSS Core Designer, Dataiku DSS & SQL, Dataiku DSS ML Practitioner, Dataiku DSS Core Concepts, Neuron 2020, Neuron, Dataiku DSS Adv Designer, Registered, Dataiku DSS Developer, Neuron 2021, Neuron 2022, Frontrunner 2022 Finalist, Frontrunner 2022 Winner, Frontrunner 2022 Participant, Neuron 2023 Posts: 107 Neuron
    Answer ✓
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    Hi community,

    After further investigation and with help of Dataiku Support we found out that the problem had to do with the actual rights of the main dataiku folder. Somehow this was altered.

    Once again thanks your help.

    Marc Robert

Answers

  • MRvLuijpen
    MRvLuijpen Partner, L2 Admin, L2 Designer, Dataiku DSS Core Designer, Dataiku DSS & SQL, Dataiku DSS ML Practitioner, Dataiku DSS Core Concepts, Neuron 2020, Neuron, Dataiku DSS Adv Designer, Registered, Dataiku DSS Developer, Neuron 2021, Neuron 2022, Frontrunner 2022 Finalist, Frontrunner 2022 Winner, Frontrunner 2022 Participant, Neuron 2023 Posts: 107 Neuron
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    Hello Ignacio,

    Thank you for your reply.

    The result of these commands are:

    /appl/dataiku/dss_data/MYPROJECT/2qmGlaPX/iris_scatter.png
    -rw-rwx---+ 1 dataiku dataiku 42K Oct 19 16:28 /appl/dataiku/dss_data/MYPROJECT/2qmGlaPX/iris_scatter.png
    $ ls -alrh /appl/dataiku/dss_data/MYPROJECT/2qmGlaPX
    total 92K
    -rw-rwx---+ 1 dataiku dataiku 42K Oct 19 16:28 iris_scatter.png
    -rw-rwx---+ 1 user3 user3 42K Apr 23 15:14 iris_scatter_backup.png
    As I understand it, this does not indicate anything strange.
    Thx
    Marc Robert
  • Ignacio_Toledo
    Ignacio_Toledo Dataiku DSS Core Designer, Dataiku DSS Core Concepts, Neuron 2020, Neuron, Registered, Dataiku Frontrunner Awards 2021 Finalist, Neuron 2021, Neuron 2022, Frontrunner 2022 Finalist, Frontrunner 2022 Winner, Dataiku Frontrunner Awards 2021 Participant, Frontrunner 2022 Participant, Neuron 2023 Posts: 411 Neuron
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    Hi Marc (@MRvLuijpen
    ). In fact, the file iris_scatter_backup.png being owned by `user3` looks strange for me. Who is the current owner of the folder '/appl/dataiku/dss_data/MYPROJECT/2qmGlaPX' ? That is an information I don't see from your outputs.

    Now, if you are using the "User Isolation" framework in you Dataiku node, then everything in fact might be OK, but I've not used the framework so I'm not expert. I would recommend in that case to create a ticket at support.dataiku.com

    Good luck!

    Ignacio

  • MRvLuijpen
    MRvLuijpen Partner, L2 Admin, L2 Designer, Dataiku DSS Core Designer, Dataiku DSS & SQL, Dataiku DSS ML Practitioner, Dataiku DSS Core Concepts, Neuron 2020, Neuron, Dataiku DSS Adv Designer, Registered, Dataiku DSS Developer, Neuron 2021, Neuron 2022, Frontrunner 2022 Finalist, Frontrunner 2022 Winner, Frontrunner 2022 Participant, Neuron 2023 Posts: 107 Neuron
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    Hi Ignacio (@Ignacio_Toledo
    ).

    Thanks again for your reply.

    The actual owner of the folder is the user dataiku. And we are using the User Isolation framework. I raised a ticket with support.

    Thanks again.

    Marc Robert

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