Outage in Amplitude

Data Processing Delays

Major
June 28, 2025 - Started about 13 hours ago
Official incident page

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Outage Details

We're currently experiencing delays in our real-time ingestion and evaluation systems. This issue began around 5:00 PM PST. Our ingestion systems are operational but processing more slowly than normal. Customers using the HTTP endpoints in the US region are affected. Impacted users may not see events from the last 40–60 minutes reflected in charts. Event streaming out is also delayed. Our evaluation systems are operational but experiencing higher than normal latency. No data loss is expected. There is no impact to customers in the EU region. We're actively investigating and will share an update within the next hour, or sooner if possible.
Latest Updates ( sorted recent to last )
IDENTIFIED 3 minutes ago - at 06/28/2025 02:33PM

We have identified the bottleneck in our ingestion pipeline and applied a preliminary fix. Event ingestion via the HTTP endpoint is recovering. The real-time HTTP endpoint has fully caught up, while the batch endpoint is currently in the process of recovering.

To prioritize real-time traffic, warehouse import has been paused. As a result, imports are currently delayed by up to 7 hours. We’re deploying another fix to improve performance and support full recovery.

EU customers remain unaffected, and no data loss is expected.

IDENTIFIED about 7 hours ago - at 06/28/2025 07:55AM

We’re still looking into the issue to better understand and resolve it.

IDENTIFIED about 7 hours ago - at 06/28/2025 07:22AM

We are continuing to work on a fix for this issue.

IDENTIFIED about 9 hours ago - at 06/28/2025 05:11AM

We’ve deployed the hotfix, and systems are now recovering.

There is a backlog of several hours of data to process. We’re closely monitoring progress and adjusting configurations as needed.

Thank you for your patience.

IDENTIFIED about 12 hours ago - at 06/28/2025 03:01AM

We believe we've identified the root cause. We're implementing and deploying a hotfix to confirm this and restore normal data processing.

INVESTIGATING about 13 hours ago - at 06/28/2025 02:05AM

We're currently experiencing delays in our real-time ingestion and evaluation systems. This issue began around 5:00 PM PST.

Our ingestion systems are operational but processing more slowly than normal. Customers using the HTTP endpoints in the US region are affected. Impacted users may not see events from the last 40–60 minutes reflected in charts. Event streaming out is also delayed.

Our evaluation systems are operational but experiencing higher than normal latency.

No data loss is expected. There is no impact to customers in the EU region.

We're actively investigating and will share an update within the next hour, or sooner if possible.

Latest Amplitude outages

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Data Processing Delays - 16 days ago
Data Export Lag - about 1 month ago

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