**Azure Databricks Declarative Pipeline Outage – West US 3** Starting at 15:15 UTC on September 29, 2026, Azure Databricks customers in West US 3 experienced failures and degraded availability with Declarative Pipelines, including pipeline runs failing with `CONTROL_PLANE_FAILURE` errors, runs not starting or progressing, and missing or delayed pipeline status information. The incident lasted approximately 1.1 hours and affected the Jobs Service. The root cause was identified and mitigation efforts were put in place, with no customer action required.
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Impact Summary
Starting at 15:15 UTC September 29, 2026, customers using Azure Databricks in West US 3 may experience failures or degraded availability with Declarative Pipelines. Affected customers may encounter pipeline runs that fail, do not start, or do not progress.
Symptoms
• Pipeline runs failing with control plane errors
• Pipeline runs not starting or not progressing
• Missing or delayed pipeline status information
Recommendations
No customer action is required at this time.
Current Status
The issue is under active investigation.
Next Update
We will provide another update within 1 hour, or sooner if there is a material change in service status.
Impact Summary
Starting at 15:15 UTC September 29, 2026, customers using Azure Databricks in West US 3 may experience failures or degraded availability with Declarative Pipelines. Affected customers may encounter pipeline runs that fail, do not start, or do not progress.
Symptoms
• Pipeline runs failing with control plane errors
• Pipeline runs not starting or not progressing
• Missing or delayed pipeline status information
Recommendations
No customer action is required at this time.
Current Status
The issue is under active investigation.
Next Update
We will provide another update within 1 hour, or sooner if there is a material change in service status.
Impact Summary
Starting at 15:15 UTC September 29, 2026, customers using Databricks may experience failures or degraded performance with Declarative Pipelines. Affected customers may find that pipeline runs fail intermittently or do not complete as expected.
Symptoms
• Pipeline runs failing with CONTROL_PLANE_FAILURE errors
• Pipeline runs not progressing or terminating unexpectedly
• Missing or delayed pipeline status information
Recommendations
No customer action is required at this time.
Current Status
The issue has been identified and mitigation efforts are in progress.
Next Update
We will provide another update within 1 hour, or sooner if there is a material change in service status.
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