Question

将spring-cloud-feign与HystrixCodaHaleMetricsPublisher和Graphite结合使用时遇到了一个奇怪的问题。已创建度量标准节点，但没有数据进入。

我的配置：

@Configuration
@RequiredArgsConstructor
@EnableConfigurationProperties(ApiGatewayProperties.class)
@EnableFeignClients
public class AccountSettingsClientConfig {
    private final ApiGatewayProperties apiGatewayProperties;

    @Bean
    public RequestInterceptor oauth2FeignRequestInterceptor() {
        return new OAuth2FeignRequestInterceptor(new DefaultOAuth2ClientContext(), resource());
    }

    @Bean
    public okhttp3.OkHttpClient okHttpClient() {
        return new OkHttpClient.Builder().hostnameVerifier((s, sslSession) -> true)
                .build();
    }

    @Bean
    public AccountSettingsClientFallbackFactory accountSettingsClientFallbackFactory() {
        return new AccountSettingsClientFallbackFactory();
    }

Answer 1

最后，我找到了解决问题的方法。问题是，FeignHistrix的默认SetterFactory生成的commandKey包含无效（石墨）字符，即development.local.AccountSettingsClient.AccountSettingsClient#accountSettings(String).countBadRequests。在这种情况下，无效的字符是＃和（）。当GraphiteReport开始将数据发送到Graphite时，一切正常并且数据被发送，但Graphite无法处理它。因此没有数据持续存在。

作为解决方法，我注册了一个自定义的SetterFactory：

 @Bean
public SetterFactory setterFactoryThatGeneratesGraphiteConformCommandKey() {
    return (target, method) -> {
        String groupKey = target.name();
        //allowed chars for graphite are a-z, A-Z, 0-9, "-", "_", "." and "/".
        //We don't use default SetterFactory.Default because it generates command key with parenthesis () and #
        String commandKey = target.type().getSimpleName() + "-" + method.getName();
        return HystrixCommand.Setter
                .withGroupKey(HystrixCommandGroupKey.Factory.asKey(groupKey))
                .andCommandKey(HystrixCommandKey.Factory.asKey(commandKey));
    };
}

现在一切正常。

HystrixCodaHaleMetricsPublisher与spring-cloud-feign hystrix不兼容

1 个答案: