Troubleshooting Spring Boot Applications with Sentry

No matter how clean our code is, how good our tests are, how well our infrastructure scales - one day, eventually something will go wrong in production. Bugs and outages cases customer to lose trust and cost real money. Our job is to identify and fix the issue as quickly as possible. In this session, we will have a look at Sentry - an open source troubleshooting and application monitoring solution - and its seamless integration with Spring Boot. We will learn the benefits of treating errors as contextual events and how exception reporting and performance monitoring in a single tool simplify addressing production issues.

Talk given at JavaCRO 2021 https://2021.javacro.hr/eng/Program/Troubleshooting-Spring-Boot-applications-with-Sentry

Code: https://github.com/maciejwalkowiak/troubleshooting-spring-boot-appplications-with-sentry

Transcript

1. MACIEJWALKOWIAK TROUBLESHOOTING SPRING BOOT APPS WITH SENTRY MACIEJ WALKOWIAK
2. @maciejwalkowiak MAKING SOFTWARE IN 2021 LIKE A PRO •Agile •Unit & Integration Tests •Frequent Releases •Cloud •Deployment Automation
3. @maciejwalkowiak DEVELOPER LIFE IN 2007 •Agile Waterfall •Unit & Integration Tests Manual Testing •Frequent Releases Release every few months •Cloud Server Room behind the wall •Deployment Automation Sending ZIP file to release manager
4. @maciejwalkowiak If something can go wrong, It will go wrong
5. MACIEJWALKOWIAK
6. MACIEJWALKOWIAK return paymentService.executePayment(userId, payment);
7. MACIEJWALKOWIAK try { return paymentService.executePayment(userId, payment); } catch (Exception e) { LOGGER.error("Executing payment failed for user: {}, payment: {}", e); throw new RuntimeException(e); }
8. MACIEJWALKOWIAK try { LOGGER.info("Executing payment for user: {}", userId); PaymentResult result = paymentService.executePayment(userId, payment); LOGGER.info("Payment result: {}", result); return result; } catch (Exception e) { LOGGER.error("Executing payment failed for user: {}, payment: {}", e); throw new RuntimeException(e); }
9. @maciejwalkowiak THINGS HAVE CHANGED •(Misunderstood) Agile •Cloud & Microservices •Mobile (traffic!) •(Proper) security
10. MACIEJWALKOWIAK
11. @maciejwalkowiak hey I just met you and this is crazy but can this error log be a bug report maybe?
12. MACIEJWALKOWIAK
13. MACIEJWALKOWIAK MACIEJ WALKOWIAK - independent consultant - Spring Cloud AWS Lead - working with
14. @maciejwalkowiak DEMO TIME!
15. @maciejwalkowiak SENTRY & SPRING BOOT INTEGRATIONS •Spring MVC •Spring WebFlux (error reporting) •Retrieving user information from Spring Security •RestTemplate •WebClient •Logback •declarative tracing with @SentrySpan & @SentryTransaction
16. @maciejwalkowiak OTHER INTEGRATIONS •OpenFeign •Apollo GraphQL •Java Util Logging •Log4j2 •Servlets
17. MACIEJWALKOWIAK https://sentry.io
18. MACIEJWALKOWIAK https://github.com/getsentry
19. MACIEJWALKOWIAK https://docs.sentry.io
20. MACIEJWALKOWIAK https://github.com/getsentry/sentry-java
21. @maciejwalkowiak THANK YOU! HAPPY BUGFIXING!