asmhatre
320733265f
Companion module for the rewritten post 'Resilience4j Circuit Breaker in Spring Boot 4.1: What It's Still For', reworked around Framework 7 now shipping @Retryable/@ConcurrencyLimit in core. Covers what's still Resilience4j's job (circuit breaker, rate limiter, bulkhead's bounded wait, fallback methods, Actuator/Micrometer metrics), the off-by-one between maxAttempts and maxRetries, and two Boot-4.1 build breaks: spring-boot-starter-aop no longer exists (renamed to spring-boot-starter-aspectj, proven with Maven Central metadata and the renamed starter's own POM -- see resilience/docs/08-starter-aop-renamed-to-starter-aspectj.md in this same repo), and the resulting fix uses that renamed starter directly rather than assembling spring-aop + aspectjweaver by hand. Kept as its own module rather than a new top-level repository, alongside the existing resilience/ module for the sibling Framework-7 post.
13 lines
759 B
Plaintext
13 lines
759 B
Plaintext
@Retryable against a permanently-dead downstream: two consecutive calls, no shared state
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-- Call 1: pay("order-A") --
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threw FlakyDownstream.DownstreamUnavailableException after exhausting retries
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downstream calls so far: 4 (1 initial attempt + 3 retries = 4 expected)
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-- Call 2: pay("order-B"), immediately after Call 1 exhausted its retries --
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downstream calls so far: 8 (another 4 attempts, not fast-failed)
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Contrast with docs/output/01-circuitbreaker-trip.txt: there, calls 7-9 after the trip
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added ZERO downstream calls. Here, call 2 pays the same 4-attempt cost as call 1.
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@Retryable has no OPEN state -- it cannot tell you 'this dependency is currently down'.
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