Session error status code 430

Hi syl-ade 

1. Check for active Spark sessions:

• Go to Monitoring Hub - Spark tab.

• End or cancel any running sessions. Even if you think none are active, check once - some sessions stay open in the background.

2. Wait a few minutes:

• After stopping sessions, wait 5–10 minutes.

• Spark sometimes keeps resources busy for a short time after a job ends.

3. Restart the notebook:

• Close your current notebook.

• Reopen it and run the first cell again - this starts a new, clean Spark session.

4. Check capacity limits:

• If the error still appears, your workspace is at its capacity limit (SKU).

• Contact your admin to increase Fabric capacity or use a higher SKU.

5. Try again later if needed:

• When other users’ Spark jobs finish, your capacity frees up automatically.

• Then you can start your session without issues.