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PhilippMer's avatar
PhilippMer
Frequent Visitor
1 year ago
Solved

Issue with Session Start After Switching to Schema-Enabled Lakehouse

Hello everyone,

I recently created a notebook in Fabric and developed everything using Python. Initially, I had a Lakehouse attached, but after switching to a schema-enabled Lakehouse (using the Preview feature), I started encountering errors when trying to start a session.

Error Details

When executing a cell, I get the following error:

InvalidHttpRequestToLivy: [TJS_OnelakecatalogUnsupportedWorkspaceName] Do not use \, “, ., and % in workspace names with schema enabled lakehouses. HTTP status code: 400.
However, I can't even start a session manually. When pressing "Start Session" at the top, I receive another error.

Additional Diagnostic Information

  • The session fails with a message indicating:
     
    {
    "type": "close",
    "timeStamp": 451766,
    "code": 1000,
    "reason": "{\"reason\":\"Session error or stopped.\",\"state\":\"session-completed\"}",
    "wasClean": false,
    "target": {
  • The issue persists even after restarting the notebook and deleting browser data.

Has anyone else encountered this after enabling schemas in Lakehouse? Any insights or potential workarounds would be greatly appreciated!

Thanks in advance.

  • Hello PhilippMer 

    The error message you received highlights one of the primary limitations of the schema-enabled Lakehouse feature: workspace naming restrictions. Microsoft specifically requires that workspace names must only contain alphanumeric characters when using schema-enabled Lakehouses.

    Coukd you please check the workspace name once again.

3 Replies

  • Hello PhilippMer 

    The error message you received highlights one of the primary limitations of the schema-enabled Lakehouse feature: workspace naming restrictions. Microsoft specifically requires that workspace names must only contain alphanumeric characters when using schema-enabled Lakehouses.

    Coukd you please check the workspace name once again.

    • PhilippMer's avatar
      PhilippMer
      Frequent Visitor

      Thank you very much, you are absolutely right. The error message did not indicate that sadly, but it solved my error. 

  • v-karpurapud's avatar
    v-karpurapud
    Icon for Community Support rankCommunity Support

    Hello PhilippMer 

    Could you please confirm if your query have been resolved the solution provided by nilendraFabric ? If they have, kindly mark the helpful response and accept it as the solution. This will assist other community members in resolving similar issues more efficiently.

    Thank you