Mixpanel outage, 14 May 2026
Query API degraded performance
- Started
- Resolved
- 16 May 2026, 02:50 UTC (after 27 h 33 min)
- Impact
- Minor
- Affected
- Application Availability (US)
Last update from Mixpanel
# Mixpanel RCA: Transient Data Access Issue, May 14, 2026 ## Summary On Thursday, May 14, 2026 at approximately 2:30 PM PT, a routine but infrequent cleanup operation in Mixpanel's storage system mistakenly removed a portion of production data files in addition to the unused files it was intended to remove. Some customers experienced query errors during the hours that followed. We detected the issue within minutes, deployed mitigations the same evening that returned query success rates and latency to normal, and restored the affected files from backup by 5:15 PM PT on Friday, May 15. Mixpanel's ingestion pipeline was not affected and no event data was lost in transit. ## What happened Th...
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