Hey mbvb_py,
I'm sorry to hear you're facing this "Backend service unavailable" issue with Databricks. I've encountered similar problems in the past, and it can be frustrating. Don't worry; you're not alone in this!
From my experience, this error can occur due to various reasons, but it's usually related to server-side issues or configuration problems. Here are a few steps you can take to troubleshoot:
1. Check Service Status: Start by checking Databricks' service status page. Sometimes, they might be experiencing downtime or issues on their end, which can cause this error.
2. Network and Firewall: Ensure your network and firewall settings are not blocking Databricks' services. Sometimes, restrictive network policies can lead to connectivity problems.
3. Account Permissions: Verify that your account has the necessary permissions to create clusters. Insufficient permissions can also trigger this error.
4. Contact Support: If all else fails, don't hesitate to reach out to Databricks' support team. They are usually very helpful and can provide specific guidance based on your situation.
I hope this helps you resolve your issue.