Outage in Alation

Metadata extraction / QLI failures with BAD REQUEST HTTP response headers

Resolved Minor
October 21, 2025 - Started about 2 months ago - Lasted about 4 hours
Official incident page

Incident Report

We are currently investigating an issue with the MDE Pipeline service, which is preventing data extraction and causing errors. The error is related to a timeout connection to the pipeline service. Our team is working to resolve the issue as quickly as possible. We will keep you posted with the progress as it becomes available.

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Latest Updates ( sorted recent to last )
RESOLVED about 2 months ago - at 10/21/2025 09:04PM

Fix has been implemented and confirmed to successfully resolve the issue. Root cause was result of AWS US-East-1 outage from previous day (Monday, October 20).

IDENTIFIED about 2 months ago - at 10/21/2025 06:35PM

Cause has been identified and fix implemented. Working on resolution.

INVESTIGATING about 2 months ago - at 10/21/2025 05:26PM

We are currently investigating an issue with the MDE Pipeline service, which is preventing data extraction and causing errors. The error is related to a timeout connection to the pipeline service. Our team is working to resolve the issue as quickly as possible.

We will keep you posted with the progress as it becomes available.

Latest Alation outages

Service Degradation for EU Customers - about 2 months ago
Third-party provider outage (AWS) - about 2 months ago
Latency across multiple regions - 5 months ago
Investigating latency across multiple regions - 5 months ago
Investigating connectivity issues - 5 months ago

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