Warning: Elevated 5xx error rate detected on reviews service in default namespace

[peterj]

🚨 Service: reviews.default.svc.cluster.local

📊 Current Metrics (last 5 minutes):

• Request rate: 1.05 req/s
• Error rate (5xx): ~23.3%
• Error rate (4xx): 0%
• Latency: p50=2.66ms, p95=9.78ms, p99=22.27ms

Severity: Warning

Issues Detected:

• Elevated 5xx error rate indicating potential server-side issues.

Recommendations:

1. Investigate application logs on the reviews service pods for errors causing 5xx responses.
2. Check resource usage, restarts, or misconfigurations in the reviews deployment.
3. Explore request traces if distributed tracing is enabled to find root cause.
4. Use PromQL queries such as:
   • istio_requests_total{destination_service="reviews.default.svc.cluster.local",response_code=~"5.."}
   • istio_request_duration_milliseconds_bucket{destination_service="reviews.default.svc.cluster.local"}

Please prioritize investigation and fix to maintain service reliability.