Outage in PostHog US
Realtime destinations: delivery delays
Resolved Minor
July 23, 2026 - Started 10 days ago
- Lasted about 6 hours
Incident Report
Summary AI Generated
PostHog US experienced a 6.4-hour incident affecting realtime destination delivery, caused by a poison pill message that clogged a single queue partition. Only that partition was impacted with event delays; no data was lost and the rest of the system remained healthy. A fix was developed and deployed, though its release was briefly delayed by a concurrent GitHub outage; the partition has since been confirmed as draining normally.
The fix is deployed and the partition is now draining.
Components affected
PostHog US Destination Delivery (realtime)Trusted by 1,000+ teams
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Latest Updates ( sorted recent to last )
INVESTIGATING
10 days ago - at 07/23/2026 06:58AM
We’re investigating issues with realtime destinations. Some events may be delayed.
IDENTIFIED
10 days ago - at 07/23/2026 08:01AM
The problem was a poison pill message clogging the queue on one partition. Invocations on that particular partition see some delay whilst the rest of the system is completely healthy. No data was lost and delays on that partition is the only impact. We prepared a PR and are merging the fix.
IDENTIFIED
10 days ago - at 07/23/2026 08:36AM
We have a fix prepared but due to an github outage https://www.githubstatus.com/ we are waiting for actions to run to merge and resolve the issue.
MONITORING
10 days ago - at 07/23/2026 11:01AM
The fix is deployed and the partition is now draining.
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