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[英]Can't get Resilience4j @RateLimiter to work with Spring Boot
[英]Resilience4j RateLimiter seems to ignore configuration
我对 Resilience4j RateLimiter 有问题
public static void main(final String[] args) throws InterruptedException {
final ExternalService service = new ExternalService();
final ExecutorService executorService = Executors.newFixedThreadPool(30);
final RateLimiterConfig config = RateLimiterConfig.custom()
.limitRefreshPeriod(Duration.ofSeconds(10))
.limitForPeriod(3)
.timeoutDuration(Duration.ofSeconds(12))
.build();
final RateLimiter rateLimiter = RateLimiter.of("RateLimiter", config);
final Callable<Response<String>> callable = RateLimiter.decorateCallable(
rateLimiter, () -> service.get(200, "OK")
);
executorService.submit(callable); //fine in first period
executorService.submit(callable); //fine in first period
executorService.submit(callable); //fine in first period
executorService.submit(callable); //should wait 10 sec and fine in second period
executorService.submit(callable); //should wait 10 sec and fine in second period
executorService.submit(callable); //should wait 10 sec and fine in second period
executorService.submit(callable); //should exit with timeout after 12 seconds
executorService.submit(callable); //should exit with timeout after 12 seconds
executorService.submit(callable); //should exit with timeout after 12 seconds
Thread.sleep(Duration.ofSeconds(40).toMillis());
executorService.shutdown();
}
在ExternalService
我有一些带有 localTime 响应的基本日志记录。 我认为它应该像我在评论中解释的那样工作,但我的回答是:
> Task :Main.main()
[12:24:53.5] Return standard response
[12:24:53.5] Return standard response
[12:24:53.5] Return standard response
[12:25:03.5] Return standard response
[12:25:03.5] Return standard response
[12:25:03.5] Return standard response
[12:25:03.5] Return standard response
[12:25:03.5] Return standard response
BUILD SUCCESSFUL in 40s
所以看起来第一个循环是好的,但之后,RateLimiter 允许五个下一个线程,并且永远不会调用最后一个线程。
不幸的是,这是一个在发布 v1.2.0 的 PR #672 中引入的错误。 PR 增加了每次调用请求多个许可的可能性。 该错误现已修复。
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