Ankur Mhatre
4b6cefa60a
Companion repository for the ankurm.com article. Every transcript in docs/output/ was produced by running this project; scripts/run-all.sh regenerates all of them. Verified against Spring Boot 4.1.1 / Framework 7.0.9 / Security 7.1.1 / Micrometer 1.17.1 / kafka-clients 4.2.1 on Temurin JDK 25.0.4.1+1.
19 lines
775 B
Plaintext
19 lines
775 B
Plaintext
### profile: details upstream deliberately sleeping 30s per request
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### demo.upstream.timeout-ms = 750, so the indicator gives up long before the stub replies
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$ time curl -s http://localhost:8080/actuator/health/externalApi
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{
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"details": {
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"error": "org.springframework.web.client.ResourceAccessException: I/O error on GET request for \"http://localhost:8080/stub/upstream/ping\": Read timed out",
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"url": "http://localhost:8080/stub/upstream/ping",
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"latencyMs": 753,
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"timeoutMs": 750
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},
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"status": "DOWN"
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}
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wall clock: 0.84 s
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The read timeout is what bounds this, not the endpoint. Remove setReadTimeout from
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ExternalApiHealthIndicator and this call blocks for the full 30 seconds, holding a
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Tomcat worker the whole time.
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