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
   

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2. @maciejwalkowiak
   MAKING SOFTWARE IN 2021 LIKE A PRO
   •Agile
   •Unit & Integration Tests
   •Frequent Releases
   •Cloud
   •Deployment Automation
   

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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
   

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4. @maciejwalkowiak
   If something can go wrong,
   It will go wrong
   

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5. MACIEJWALKOWIAK
   

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6. MACIEJWALKOWIAK
   return paymentService.executePayment(userId, payment);
   

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7. MACIEJWALKOWIAK
   try {
   return paymentService.executePayment(userId, payment);
   } catch (Exception e) {
   LOGGER.error("Executing payment failed for user: {}, payment: {}", e);
   throw new RuntimeException(e);
   }
   

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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);
   }
   

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9. @maciejwalkowiak
   THINGS HAVE CHANGED
   •(Misunderstood) Agile
   •Cloud & Microservices
   •Mobile (traffic!)
   •(Proper) security
   

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10. MACIEJWALKOWIAK
    

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11. @maciejwalkowiak
    hey I just met you
    and this is crazy
    but can this error log
    be a bug report maybe?
    

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12. MACIEJWALKOWIAK
    

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13. MACIEJWALKOWIAK
    MACIEJ WALKOWIAK
    - independent consultant
    - Spring Cloud AWS Lead
    - working with
    

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14. @maciejwalkowiak
    DEMO TIME!
    

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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
    

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16. @maciejwalkowiak
    OTHER INTEGRATIONS
    •OpenFeign
    •Apollo GraphQL
    •Java Util Logging
    •Log4j2
    •Servlets
    

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17. MACIEJWALKOWIAK
    https://sentry.io
    

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18. MACIEJWALKOWIAK
    https://github.com/getsentry
    

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19. MACIEJWALKOWIAK
    https://docs.sentry.io
    

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20. MACIEJWALKOWIAK
    https://github.com/getsentry/sentry-java
    

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21. @maciejwalkowiak
    THANK YOU!
    HAPPY BUGFIXING!
    

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