Outage in PostHog
ClickHouse offline node is down in PostHog US
Resolved Major
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Outage Details
We have identified that one of our database nodes is unresponsive. This is causing degraded performance in offline workloads, like batch exports.
We are working on bringing the node back up.
No data loss has been identified.
Latest Updates ( sorted recent to last )
RESOLVED
3 days ago - at 09/23/2025 07:28AM
Our database is once again healthy and all batch exports have caught up with realtime processing. No further delays in data processing are expected and performance is nominal.
MONITORING
3 days ago - at 09/23/2025 07:21AM
We have executed node recovery steps, and queries should be processing normally now.
We are monitoring performance of affected services to confirm we are once again stable.
IDENTIFIED
3 days ago - at 09/23/2025 06:43AM
We have identified that one of our database nodes is unresponsive. This is causing degraded performance in offline workloads, like batch exports.
We are working on bringing the node back up.
No data loss has been identified.
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