InvalidHttpRequestToLivy: Sessions isn't active

[SergioPerdiz]

Hi,

I'm currently testing the below code I a Notebook in Fabric, however I get the following error message: InvalidHttpRequestToLivy: Submission failed due to error content =["requirement failed: Session isn't active."] HTTP status code: 400. Trace ID: 6789d3a2-e271-456a-89c8-f78933e3eb30. After that the session is stopped automatically and none of the child notebooks did run succesfully.

from notebookutils import mssparkutils

DAG = {

    "activities": [

        {   "name": "gold_custom_dates_runMultiple", # activity name, must be unique
            "path": "gold_custom_dates_runMultiple", # notebook path
            "timeoutPerCellInSeconds": 90, # max timeout for each cell, default to 90 seconds
            "retry": 1, # max retry times, default to 0
            "retryIntervalInSeconds": 30, # retry interval, default to 0 seconds
        },
        {   "name": "gold_custom_dates_relative_runMultiple", # activity name, must be unique
            "path": "gold_custom_dates_relative_runMultiple", # notebook path
            "timeoutPerCellInSeconds": 90, # max timeout for each cell, default to 90 seconds
            "retry": 1, # max retry times, default to 0
            "retryIntervalInSeconds": 30, # retry interval, default to 0 seconds

        },
        {   "name": "gold_custom_dates_document_runMultiple", # activity name, must be unique
            "path": "gold_custom_dates_document_runMultiple", # notebook path
            "timeoutPerCellInSeconds": 90, # max timeout for each cell, default to 90 seconds
            "retry": 1, # max retry times, default to 0
            "retryIntervalInSeconds": 30, # retry interval, default to 0 seconds
            #"dependencies": [] # list of activity names that this activity depends on
        },
        {   "name": "gold_custom_dates_created_runMultiple", # activity name, must be unique
            "path": "gold_custom_dates_created_runMultiple", # notebook path
            "timeoutPerCellInSeconds": 90, # max timeout for each cell, default to 90 seconds
            "retry": 1, # max retry times, default to 0
            "retryIntervalInSeconds": 30, # retry interval, default to 0 seconds
            #"dependencies": [] # list of activity names that this activity depends on
        }

    ],

    "timeoutInSeconds": 43200, # max timeout for the entire pipeline, default to 12 hours
    "concurrency": 1 # max number of notebooks to run concurrently, default to unlimited
}

# mssparkutils.notebook.runMultiple(DAG, {"displayDAGViaGraphviz":True, "DAGLayout":"spectral", "DAGSize":11})
mssparkutils.notebook.runMultiple(DAG)

I tried some of the solutions on this forum concerning error's related tot Livy, but nothing seems to work.

[Anonymous · Accepted solution]

Hi @SergioPerdiz 

Apologies for the inconvenience.

Please reach out to our support team to gain deeper insights and explore potential solutions. It's highly recommended that you reach out to our support team. Their expertise will be invaluable in suggesting the most appropriate approach.

Please go ahead and raise a support ticket to reach our support team:

https://support.fabric.microsoft.com/support

After creating a Support ticket please provide the ticket number as it would help us to track for more information.

Thank you.