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Scenario #138
Networking
K8s v1.21, Istio
Latency Due to Unoptimized Service Mesh Configuration
Increased latency in service-to-service communication due to suboptimal configuration of Istio service mesh.
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What Happened
Service latency increased because the Istio service mesh was not optimized for production traffic.
Diagnosis Steps
- 1Checked Istio configuration for service mesh routing policies.
- 2Found that default retry settings were causing unnecessary overhead.
Root Cause
Misconfigured Istio retries and timeout settings.
Fix/Workaround
• Optimized Istio retry policies to avoid excessive retries.
• Adjusted timeouts and circuit breakers for better performance.Lessons Learned
Properly configure and fine-tune service mesh settings for production environments.
How to Avoid
- 1Regularly review and optimize Istio configurations.
- 2Use performance benchmarks to guide configuration changes.