Outage in Amplitude
Data Processing Delays
Resolved MinorIncident Report
Summary AI Generated
Amplitude's data processing systems experienced delays for 6.3 hours due to an AWS infrastructure issue, causing delayed metrics, higher latencies for the experiment evaluation API, and slower cohort syncs to third-party destinations. Data ingestion continued normally with no data loss during the incident. The issue was resolved through collaboration between AWS and Amplitude teams.
Our data processing systems are delayed. This incident started at 2026-04-29 12:20 AM PT.
Current status:
a) Our ingestion systems are working as expected and no data is lost. Our processing systems are not processing newly ingested data.
b) Impacted customers will see delayed metrics for the last 1 hour.
c) Experiment evaluation API is experiencing higher latencies.
d) Cohort syncs to all 3rd party destinations is experiencing higher latencies.
We've identified the issue and are working closely with our cloud provider to mitigate it. We will provide an update within the next hour, or sooner if new information becomes available.
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Latest Updates ( sorted recent to last )
RESOLVED
1 day ago - at 04/29/2026 02:33PM
This incident has been resolved.
MONITORING
1 day ago - at 04/29/2026 09:54AM
The issue has been resolved.
MONITORING
1 day ago - at 04/29/2026 09:10AM
We are continuing to monitor for any further issues.
MONITORING
1 day ago - at 04/29/2026 08:59AM
We are continuing to monitor for any further issues.
MONITORING
1 day ago - at 04/29/2026 08:39AM
AWS and Amplitude has mitigated the issue and are seeing recovery on impacted services. We will continue to monitor the status and provide an update within the next hour, or sooner if new information becomes available.
IDENTIFIED
1 day ago - at 04/29/2026 08:30AM
AWS has identified the issue and is actively working on a resolution. We will provide an update within the next hour, or sooner if new information becomes available.
IDENTIFIED
1 day ago - at 04/29/2026 08:20AM
Our data processing systems are delayed. This incident started at 2026-04-29 12:20 AM PT.
Current status:
a) Our ingestion systems are working as expected and no data is lost. Our processing systems are not processing newly ingested data.
b) Impacted customers will see delayed metrics for the last 1 hour.
c) Experiment evaluation API is experiencing higher latencies.
d) Cohort syncs to all 3rd party destinations is experiencing higher latencies.
We've identified the issue and are working closely with our cloud provider to mitigate it. We will provide an update within the next hour, or sooner if new information becomes available.
INVESTIGATING
1 day ago - at 04/29/2026 08:15AM
Our data processing systems are delayed. This incident started at 2026-04-29 12:20 AM PT.
Current status:
a) Our ingestion systems are working as expected and no data is lost. Our processing systems are not processing newly ingested data.
b) Impacted customers will see delayed metrics for the last 1 hour.
c) Experiment evaluation API is experiencing higher latencies.
d) Cohort syncs to all 3rd party destinations is experiencing higher latencies.
We've identified the issue and are working closely with our cloud provider to mitigate it. We will provide an update within the next hour, or sooner if new information becomes available.
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