Canva experienced a significant outage on November 12, 2024, caused by an API Gateway failure linked to various issues including a software deployment, a locking problem, and CDN network disruptions. During this outage, the website was down for nearly an hour, primarily due to over 270,000 pending requests converging as clients downloaded a new version simultaneously. CTO Brendan Humphreys highlighted that the monitoring systems failed to detect these errors since requests weren't completed. Lorin Hochstein emphasized that system behavior during this surge triggered the outage rather than flaws in the new software deployment itself.
Brendan Humphreys, Canva's CTO, explains the outage resulted from an API Gateway failure tied to multiple issues, not a software bug.
Lorin Hochstein states that the incident was about system behavior caused by clients downloading the new version, not the code changes.
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