Outage in Amplitude

Data Processing Delays

Resolved Major
December 09, 2025 - Started 9 days ago - Lasted about 5 hours
Official incident page

Incident Report

Our data processing systems are delayed. This incident started at 6:10pm PDT. Current status: a) Our ingestion systems are working as expected and no data is lost. Our processing systems are not processing newly ingested data. c) Impacted customers will see delayed metrics from /batch endpoint for the last 80 minutes and metrics from real time endpoint for the last 33 minutes. We are investigating the issue and will post an update in an hour or earlier if we identify the issue.
Components affected
Amplitude Data Processing

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Latest Updates ( sorted recent to last )
RESOLVED 9 days ago - at 12/10/2025 08:46AM

This incident has been resolved.

MONITORING 9 days ago - at 12/10/2025 06:10AM

AWS has resolved the underlying issues. Our data ingestion system in the EU environment has fully recovered, and the US environment is currently in the process of recovering. We will continue to closely monitor the system until full stability is confirmed.

IDENTIFIED 9 days ago - at 12/10/2025 04:51AM

We have identified the root cause as an AWS dependency that is experiencing errors in both EU and US production environments. We are currently waiting for AWS to resolve the underlying issues and will continue to closely monitor the situation.

INVESTIGATING 9 days ago - at 12/10/2025 04:21AM

We've identified the root cause as being a critical dependency in AWS experiencing a high error rate. We are monitoring and communicating with AWS to resolve this as soon as possible.

INVESTIGATING 9 days ago - at 12/10/2025 03:40AM

Our data processing systems are delayed. This incident started at 6:10pm PDT.

Current status:
a) Our ingestion systems are working as expected and no data is lost. Our processing systems are not processing newly ingested data.
c) Impacted customers will see delayed metrics from /batch endpoint for the last 80 minutes and metrics from real time endpoint for the last 33 minutes.

We are investigating the issue and will post an update in an hour or earlier if we identify the issue.

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