Resolved: Azure Analysis Services Performance Issues 1/24/25

Update:

As of 1/27/25, Microsoft has announced that this is resolved. However, they're slowing rolling out the fix, so we are continuing to monitor impacts and increasing memory limits proactively as a countermeasure.

Overview

As of approximately 4am CT on Friday 1/24/25 Azure Analysis Services (AAS) is currently experiencing performance issues due to a global outage identified by Microsoft. This issue has led to memory spikes, delays, and cube build failures across affected environments, including EBM. Microsoft expects to have these issues resolved by Monday 1/27/25.

What is Happening?
Microsoft reported that a recent change caused unexpected memory usage, leading to "out of memory" errors during refresh operations. They are actively investigating and rolling back changes to resolve the issue.

Expected Resolution:
Microsoft anticipates providing an update or resolving the issue by Monday, January 27, 2025.

What is Being Done?

• EBM is closely monitoring the situation and exploring potential workarounds to minimize the impact.
• Microsoft is actively addressing the issue and gradually rolling back recent changes.

How Does This Impact You?

• You may experience delays or failures when building cubes or refreshing data in Azure Analysis Services.
• Performance issues are likely to persist until Microsoft completes their fix.

What Can You Do?

• Retry operations if they fail, as the issue may be intermittent.
• Contact EBM Support if urgent assistance is required.

Next Steps
We will provide updates as more information becomes available or when the issue is resolved. Thank you for your patience and understanding during this time.

If you have any questions, please reach out to EBM Support.

Last Updated: 1/24/25