imgix incident
We are investigating increased latency for first time renders in EU
Resolved after 1 hour 12 minutes, affecting Rendering Infrastructure, on October 29, 2025.
# **Summary** Between October 21 and October 29, customers in Europe experienced 3 separate periods of increased latency for rendering requests. In a small number of cases, requests temporarily failed with “429 – concurrency limit reached” responses. # **What Went Wrong** The incident was traced to a GPU scaling issue from one of our upstream infrastructure providers. This led to temporary slowdowns and under higher-than-usual load. ### **Timeline** * **October 21:** Increased rendering latency in EU region, self-resolved. Investigation traced issue to GPU scaling in upstream infrastructure. Mitigation prepared. * **October 27:** Issue recurred. Manual mitigation deployed to stabilize rendering and automate future handling. * **October 29:** Latency alert triggered again. Previous fix mitigates impact, but latency becomes intermittent; additional configuration changes implemented to fully restore service and prevent recurrence. # What we will do to prevent this in the future While the new configurations will prevents recurring incidents, we are making further improvements to rendering resiliency and recovery speed: * Added more GPU hardware types to reduce the risk of scaling delays during peak demand. * Testing and evaluating additional hardware configurations to improve resiliency. * Finalizing fine-tuning of current configurations and exploring cross-regional load-balancing capabilities to further strengthen reliability. * Adjusted alerting thresholds to provide earlier notification of emerging issues.
Affected components
Update timeline
- investigating Oct 29, 2025, 11:34 AM UTC
We are currently investigating this issue.
- identified Oct 29, 2025, 11:56 AM UTC
The issue has been identified and a fix is being implemented.
- monitoring Oct 29, 2025, 12:25 PM UTC
A fix has been implemented and we are monitoring the results.
- resolved Oct 29, 2025, 12:46 PM UTC
This incident has been resolved.
- postmortem Nov 11, 2025, 12:18 AM UTC
# **Summary** Between October 21 and October 29, customers in Europe experienced 3 separate periods of increased latency for rendering requests. In a small number of cases, requests temporarily failed with “429 – concurrency limit reached” responses. # **What Went Wrong** The incident was traced to a GPU scaling issue from one of our upstream infrastructure providers. This led to temporary slowdowns and under higher-than-usual load. ### **Timeline** * **October 21:** Increased rendering latency in EU region, self-resolved. Investigation traced issue to GPU scaling in upstream infrastructure. Mitigation prepared. * **October 27:** Issue recurred. Manual mitigation deployed to stabilize rendering and automate future handling. * **October 29:** Latency alert triggered again. Previous fix mitigates impact, but latency becomes intermittent; additional configuration changes implemented to fully restore service and prevent recurrence. # What we will do to prevent this in the future While the new configurations will prevents recurring incidents, we are making further improvements to rendering resiliency and recovery speed: * Added more GPU hardware types to reduce the risk of scaling delays during peak demand. * Testing and evaluating additional hardware configurations to improve resiliency. * Finalizing fine-tuning of current configurations and exploring cross-regional load-balancing capabilities to further strengthen reliability. * Adjusted alerting thresholds to provide earlier notification of emerging issues.
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