Resolved after 1 hour 33 minutes, affecting Metrics, on May 22, 2026.
# Legacy host metrics integrations degraded Incident window: 2026-05-21 18:37 UTC – 2026-05-22 04:05 UTC \(9h 28m\) Affected service: Legacy metric integrations \(CloudWatch, Datadog, Librato, New Relic, Splunk, Stackdriver\). Host metrics affected, not broker metrics, nor was internal monitoring or console graphs. ## Summary For ~9.5 hours, the service that collects host-level metrics \(CPU, memory, disk, network\) for legacy third-party integrations entered a crash loop and stopped shipping data. ## Root Cause An internal credential-signing service was migrated to a new container runtime the afternoon before. Due to a bug with environment variables the collector could not renew it's credentials. The collector's existing credential remained valid for several hours, so the failure only surfaced when it tried to renew. ## Resolution On-call staff detected the failure early morning, developers helped restore the service and collector recovered at 04:05 UTC. ## Prevention * All services, both signing and collector report failed authentication attempts earlier and with higher severity * Metrics pipeline alarm thresholds was tightened so a similar drop in data triggers alarms faster.
Affected components
Update timeline
- investigating May 22, 2026, 03:16 AM UTC
Since around 8pm UTC last night, some metrics are not being forwarded to legacy integration. Prometheus integrations not affected. We are investingating.
- monitoring May 22, 2026, 04:08 AM UTC
A fix has been implemented and we are monitoring the results.
- resolved May 22, 2026, 04:50 AM UTC
This incident has been resolved.
- postmortem May 22, 2026, 01:52 PM UTC
# Legacy host metrics integrations degraded Incident window: 2026-05-21 18:37 UTC – 2026-05-22 04:05 UTC \(9h 28m\) Affected service: Legacy metric integrations \(CloudWatch, Datadog, Librato, New Relic, Splunk, Stackdriver\). Host metrics affected, not broker metrics, nor was internal monitoring or console graphs. ## Summary For ~9.5 hours, the service that collects host-level metrics \(CPU, memory, disk, network\) for legacy third-party integrations entered a crash loop and stopped shipping data. ## Root Cause An internal credential-signing service was migrated to a new container runtime the afternoon before. Due to a bug with environment variables the collector could not renew it's credentials. The collector's existing credential remained valid for several hours, so the failure only surfaced when it tried to renew. ## Resolution On-call staff detected the failure early morning, developers helped restore the service and collector recovered at 04:05 UTC. ## Prevention * All services, both signing and collector report failed authentication attempts earlier and with higher severity * Metrics pipeline alarm thresholds was tightened so a similar drop in data triggers alarms faster.
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