Changes / RudderStack / Issues with python transformations in US.

RudderStack: Major incident: Issues with python transformations in US.

Summary

RudderStack reported a major outage affecting Python Transformations in the US from 2025-10-20 15:32 UTC to 2025-10-20 21:51 UTC (6 h 18 min). The vendor attributed the issues to an ongoing AWS incident and limited AWS resources; increased EC2 instance launches restored capacity, and all backlog was cleared with no lingering customer impact reported.

Machine-written from the diff below (Sol; type: incident outage). Check the diff before relying on it.

Major incidentLabel: outage (model (Jev), 80%)Changed Detected Source: stspg.io (opens in new tab)

What changed

AddedTitle#1
Before: not present
After: Issues with python transformations in US.
AddedImpact#2
Before: not present
After: major
AddedStatus#3
Before: not present
After: resolved
AddedStart time#4
Before: not present
After: 2025-10-20 15:32 UTC
AddedResolved time#5
Before: not present
After: 2025-10-20 21:51 UTC
AddedAffected components#6
Before: not present
After: Data Processing Pipeline - Data Processing Pipeline (US), Data Processing Pipeline (US)
AddedUpdateidentified#7
Before: not present
After: RudderStack is actively working to resolve the issues caused by the ongoing AWS incident. Currently, customers in US using Python Transformations are impacted, and we are focused on restoring this feature as soon as possible. Our efforts are currently constrained by limited AWS resource availability, but we are exploring multiple options to restore full functionality. We will share another update as soon as we have more information.
AddedUpdatemonitoring#8
Before: not present
After: We are seeing successful increased launches of new EC2 instances and thus able to resource python transformations. We will be monitoring till all the backlog is cleared
AddedUpdateresolved#9
Before: not present
After: RudderStack has cleared all backlog across all the python transformations. We do not see any lingering impact to customers. If you have questions contact your account team

First version of this incident archived by Rewindex. View the live incident (opens in new tab).

History of this incident

When (UTC)ChangeKind
Major incident: Issues with python transformations in US. (this change)
RudderStack reported a major outage affecting Python Transformations in the US from 2025-10-20 15:32 UTC to 2025-10-20 21:51 UTC (6 h 18 min). The vendor attributed the issues to an ongoing AWS incident and limited AWS resources; increased EC2 instance launches restored capacity, and all backlog was cleared with no lingering customer impact reported.
Major incident

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