Top SRE Online Institute Site Reliability Engineering Training

1. Common Failure Modes in Microservices Architecture Identifying and Mitigating System Weaknesses +91-7032290546

2. Introduction to Microservices • Definition: Microservices is an architectural style that structures an application as a collection of loosely coupled services. • Benefits: Scalability, independent deployment, faster time to market. • Challenge: While flexible, microservices introduce new types of failure modes. +91-7032290546 www.visualpath.in

3. Service-to-Service Communication Failures • Description: Microservices often rely on synchronous or asynchronous communication. • Failures: • Network latency or timeout • Service unavailability • Misconfigured endpoints • Impact: Cascading failures, poor performance • Mitigation: Timeouts, retries, circuit breakers (e.g., Hystrix) +91-7032290546 www.visualpath.in

4. Data Inconsistency & Distributed Transactions • Issue: Each service may manage its own database, making global consistency hard. • Failures: • Partial updates • Lost or duplicated messages • Dirty reads/writes • Mitigation: Saga patterns, eventual consistency, idempotent operations +91-7032290546 www.visualpath.in

5. Dependency Failures • Cause: One service depends on another (e.g., payment -> inventory -> shipping). • Failures: • Downstream service crashes • Version mismatch • Mitigation: • Graceful degradation • API versioning • Fallback strategies +91-7032290546 www.visualpath.in

6. Service Discovery & Load Balancing Failures • Issue: Microservices require dynamic discovery and load distribution. • Failures: • Stale service registry • DNS misconfiguration • Load balancer bottlenecks • Mitigation: • Health checks • Self-healing service registries (e.g., Consul, Eureka) +91-7032290546 www.visualpath.in

7. Configuration & Deployment Failures • Cause: Each service has its own configuration, often stored centrally. • Failures: • Incorrect config values • Misconfigured secrets or credentials • Inconsistent deployment pipelines • Mitigation: • Configuration management tools (e.g., Spring Cloud Config) • Canary deployments • CI/CD with automated rollback +91-7032290546 www.visualpath.in

8. Observability & Debugging Challenges • Issue: With many services, tracing the source of a failure is difficult. • Failures: • Lack of centralized logging • No correlation IDs • Poor metrics/alerts • Mitigation: • Distributed tracing (e.g., OpenTelemetry, Jaeger) • Centralized logging (e.g., ELK Stack) • Monitoring dashboards (e.g., Prometheus, Grafana) +91-7032290546 www.visualpath.in

9. Conclusion & Best Practices • Summary: • Microservices offer flexibility but introduce new failure modes. • Resilience patterns and observability are key to success. • Best Practices: • Design for failure • Automate monitoring and recovery • Regularly test failure scenarios (chaos engineering) • Final Thought: "Build systems that fail gracefully, not ones that never fail." +91-7032290546 www.visualpath.in

10. For More Information About Site Reliability Engineering Address:- Flat no: 205, 2nd Floor, Nilagiri Block, Aditya Enclave, Ameerpet, Hyderabad-16 Ph. No: +91-998997107 Visit: www.visualpath.in E-Mail: online@visualpath.in +91-7032290546 www.visualpath.in

11. Thank You • Visit: www.visualpath.in +91-7032290546 www.visualpath.in