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Incident #9492: High Latency
Resolved in 2m
Alert Received

PagerDuty: Checkout Service Latency > 2s

Automated Analysis

Correlated: Redis CPU Spike + Deploy v4.2

Root Cause Identified
Error: Connection Limit Exceeded (Redis)

See Rezmo in Action

Watch how Rezmo investigates a "Payment Service Limit" incident in real-time.

rezmo-notebook-v2.ipynb
New Alert: #incidents
@PagerDuty: High Latency Detected on payment-service.
Create time: 10:42 AM | P99: 4500ms (Threshold: 500ms)

> Rezmo AI Agent auto-assigned. Starting investigation...

Analysis: Metrics (Prometheus)

> Querying `rate(http_request_duration_seconds_bucket[5m])`...

> Anomaly Detected: 400% spike in P99 latency starting at 10:42 AM.

Analysis: Logs (OpenSearch)

> Filtering logs for `service=payment-service` around 10:42 AM...

10:42:01 [INFO] Processing payment req_id=abc-123
10:42:05 [ERROR] Connection timed out to `fraud-check-service` (5000ms)
10:42:05 [ERROR] Retrying request... (Attempt 2)
10:42:10 [INFO] Transaction failed.

> Insight: High volume of timeouts connecting to external downstream service.

Analysis: Traces (Jaeger)

> Visualizing Span `trace_id=abc-123`

POST /checkout 5.2s
auth-service 50ms
fraud-check-service 5.01s (Timeout)

> Trace confirms the bottleneck is fraud-check-service.

Root Cause Identified
Conclusion:

The payment-service is healthy but blocked by fraud-check-service.

Evidence:
  • Metrics show correlation with new deployment of `fraud-check-v2`.
  • Logs indicate connection timeouts (5000ms).

Suggested Remediation:

AI Powered Investigation

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Multi-Source Correlation

We connect the dots between APM metrics, infrastructure logs, and change events (CI/CD) to find the smoking gun.

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