Outage in PostHog

US: Increased person processing load is causing locks on the replica DB

Resolved Minor
March 21, 2025 - Started 6 months ago - Lasted 3 days
Official incident page

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Outage Details

Performance on the posthog read replica database is a bit degraded due to a high load of person ingestion processing. This is occasionally affecting flag evaluation since the feature flag service depends on the read replica database
Latest Updates ( sorted recent to last )
RESOLVED 6 months ago - at 03/24/2025 09:50AM

This incident has been resolved.

MONITORING 6 months ago - at 03/21/2025 11:56PM

We scaled up the processing to ease out the spike. We are monitoring the situation.

IDENTIFIED 6 months ago - at 03/21/2025 09:05PM

Performance on the posthog read replica database is a bit degraded due to a high load of person ingestion processing. This is occasionally affecting flag evaluation since the feature flag service depends on the read replica database

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