也就是说,如果规则指定熔断器策略采用错误比例或则错误计数,那么为了统计错误比例或错误计数,需要调用API:api.TraceError(entry, err)埋点每个请求的业务异常。 github example:https://github.com/alibaba/sentinel-golang/blob/master/example/circuitbreaker/error_count/circuit_breaker_error_count_example.go package...
RequestRateLimiter过滤器可以用于限流,而CircuitBreaker过滤器可以用于熔断。 3. 实现过滤器 我们已经在上面的配置中使用了两个过滤器:RequestRateLimiter和CircuitBreaker。现在我们需要实现这些过滤器。 3.1 RequestRateLimiter过滤器 RequestRateLimiter过滤器可以用于限流。它基于Redis实现,可以设置每秒允许的请求数和令牌桶...
fallback rate-limiting circuit-breaker concurrent-limiter Updated May 31, 2022 Java kuldeepsingh99 / spring-cloud-gateway Star 20 Code Issues Pull requests Spring Cloud Gateway with Keycloak for Access and Identity Management and Resilience4j for fault tolerance and resiliency, Prometheus and graf...
Resilience4J 提供了以下功能: 断路器(Circuit Breaker):当检测到服务异常或超时,断路器会打开,阻止进一步的请求发送到该服务。一段时间后(通常是秒级),断路器会进入半开状态,允许一个测试请求通过以检查服务是否恢复。如果请求成功,断路器关闭;如果失败,断路器会再次打开。 限流(Rate Limiter):限制进入系统的请求速...
To solve the problem of the high rising rate and large peak value of the expected current of the short-circuit current in marine DC power system faults, a hybrid DC current limiting circuit breaker scheme based on a high-speed electromagnetic repulsion mechanism is proposed. A parameter selection...
The basic parameters of the designed HCB topology are summarized inTable 2. Four HCBs are applied to the positive and negative pole at each side. The mechanical switches in the HCB are considered as the breaker blocks provided by MATLAB/Simulink. The arc extinction process is modeled by opening...
Due to high speed current interruption there is always a chance of high rate of rise of re-striking voltage and current chopping. There also a chance of air pressure leakage from air pipes junctions. As we said earlier that there are mainly two types of ACB, plain air circuit breaker and...
resistor. With 32MHz of bandwidth and 1000V/µs slew rate the response of this sense amplifier is fast. Adding a simple comparator with a built in reference voltage circuit such as the LT6700-3 can be used to generate an over current flag. With the 400mV reference the flag occurs at...
Interruption of DC fault current in a DC system is more complex as compared to the AC one due to the high rate of rise of fault current and absence of natural zero crossing. Fast and hard switching action in DC current interruption causes excessive voltage across the circuit breaker. This ...
A system of coding plates having two circuit switch supports, whereby two grooves in each of the two supports of the circuit switch designate four capacity parameters such as voltage, direct current, interrupting capacity and instantaneous current. Two cell plates are mounted on a control panel ...