Istio Resilience: Circuit Breakers & Retries
Automatic retries, timeouts, circuit breakers, and outlier detection to build fault-tolerant microservices with Istio.
Istio Resilience: Circuit Breakers & Retries
Automatic retries, timeouts, circuit breakers, and outlier detection to build fault-tolerant microservices with Istio.
What you'll learn
- Retries: configure in VirtualService (attempts, retryOn conditions)
- Timeouts: configure per route in VirtualService
- Circuit breaker: outlierDetection in DestinationRule (eject unhealthy hosts)
Resilience Without Code Changes
Istio DestinationRules configure circuit breaking (outlier detection: eject hosts returning 5xx errors) and VirtualService configures retries (attempts, retryOn conditions) and timeouts. No application code changes needed — the proxy handles it transparently.
Key takeaways
- Retries: configure in VirtualService (attempts, retryOn conditions)
- Timeouts: configure per route in VirtualService
- Circuit breaker: outlierDetection in DestinationRule (eject unhealthy hosts)
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Discussion
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