Sentinel 链路流控模式失效

[xinmingguo-hm]

我现在使用的是 spring-cloud-alibaba 2.1.0.RELEASE版本, 控制台用的是1.7.1版本,目前遇到的问题是流控规则-流控模式-链路模式不生效
I am using spring cloud Alibaba version 2.1.0.release, and the console version 1.7.1. The current problem is that the flow control rule flow control mode link mode is not effective

code:

configure:

在这种配置下,目前message1和message2 都限制失败
In this configuration, the current message1 and message2 restrictions fail

[sczyh30]

Since 1.6.3, the web CommonFilter would unify the web entrance context, so the entrance flow control does not take effect. Sentinel 1.7.0 (~SCA 2.1.1.RELEASE) introduced an init parameter for the CommonFilter: WEB_CONTEXT_UNIFY, to control the context. You could set it to false when adding the FilterRegistration.

Sentinel/sentinel-adapter/sentinel-web-servlet/src/main/java/com/alibaba/csp/sentinel/adapter/servlet/CommonFilter.java

Lines 56 to 63 in 0e110c6

	/**
	* If enabled, use the URL path as the context name, or else use the default
	* {@link WebServletConfig#WEB_SERVLET_CONTEXT_NAME}. Please pay attention to the number of context (EntranceNode),
	* which may affect the memory footprint.
	*
	* @since 1.7.0
	*/
	public static final String WEB_CONTEXT_UNIFY = "WEB_CONTEXT_UNIFY";

See also #1024 for the background.

---

从 1.6.3 版本开始，Sentinel Web filter 默认收敛所有 URL 的入口 context，因此链路限流不生效。1.7.0 版本开始（对应 SCA 2.1.1.RELEASE)，我们在 CommonFilter 引入了 WEB_CONTEXT_UNIFY 这个 init parameter，用于控制是否收敛 context。将其配置为 false 即可根据不同的 URL 进行链路限流。

[xinmingguo-hm]

可不可以这样理解:1.6.3 版本无法使用链路限流,1.7.0之后,可以通过配置开启链路限流?
能不能给出一个配置的事例

[lazzman]

在spring-cloud-alibaba v2.1.1.RELEASE及前，sentinel1.7.0及后，关闭URL PATH聚合需要通过下面方式：

1. 配置文件中关闭sentinel的CommonFilter实例化spring.cloud.sentinel.filter.enabled=false
2. 添加一个配置类，自己构建CommonFilter实例

import com.alibaba.csp.sentinel.adapter.servlet.CommonFilter;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

@Configuration
public class FilterContextConfig {

    /**
     * @NOTE 在spring-cloud-alibaba v2.1.1.RELEASE及前，sentinel1.7.0及后，关闭URL PATH聚合需要通过该方式，spring-cloud-alibaba v2.1.1.RELEASE后，可以通过配置关闭：spring.cloud.sentinel.web-context-unify=false
     * 手动注入Sentinel的过滤器，关闭Sentinel注入CommonFilter实例，修改配置文件中的 spring.cloud.sentinel.filter.enabled=false
     * 入口资源聚合问题：https://github.com/alibaba/Sentinel/issues/1024 或 https://github.com/alibaba/Sentinel/issues/1213
     * 入口资源聚合问题解决：https://github.com/alibaba/Sentinel/pull/1111
     */
    @Bean
    public FilterRegistrationBean sentinelFilterRegistration() {
        FilterRegistrationBean registration = new FilterRegistrationBean();
        registration.setFilter(new CommonFilter());
        registration.addUrlPatterns("/*");
        // 入口资源关闭聚合
        registration.addInitParameter(CommonFilter.WEB_CONTEXT_UNIFY, "false");
        registration.setName("sentinelFilter");
        registration.setOrder(1);
        return registration;
    }

}

spring-cloud-alibaba v2.1.1.RELEASE后，可以通过配置关闭

spring.cloud.sentinel.web-context-unify=false

[sczyh30]

It will be supported to configure this in Spring config file with Spring Cloud Alibaba Sentinel. The relevant issue: alibaba/spring-cloud-alibaba#1138

[xinmingguo-hm]

配置了, 好使的, 多谢各位大神的支持.

[18050012583]

设置了还是不生效呀。

[18050012583]

public class SentinelProperties {
private boolean eager = false;
private boolean enabled = true;
private String blockPage;
private Map<String, DataSourcePropertiesConfiguration> datasource;
private SentinelProperties.Transport transport;
private SentinelProperties.Metric metric;
private SentinelProperties.Servlet servlet;
private SentinelProperties.Filter filter;
private SentinelProperties.Flow flow;
private SentinelProperties.Log log;
private Boolean httpMethodSpecify;
}
spring cloud alibaba 2.2.1版本的SentinelProperties配置里面都没有web-context-unify这个属性啊，请问怎么生效的。 @xinmingguo-hm @sczyh30

[2863416607]

我用了spring.cloud.sentinel.web-context-unify=false 但是还是没有用

[fuyukang]

我用了spring.cloud.sentinel.web-context-unify=false 但是还是没有用
<!--引入 sentinel-web-servlet坐标，再添加spring.cloud.sentinel.web-context-unify=false就生效了->

com.alibaba.csp
sentinel-web-servlet
1.7.0

[Strong-bb]

总结下 　1.7.0 版本开始（对应Spring Cloud Alibaba的2.1.1.RELEASE) 需要新增依赖

<dependency>
            <groupId>com.alibaba.csp</groupId>
            <artifactId>sentinel-web-servlet</artifactId>
        </dependency>

配置spring.cloud.sentinel.web-context-unify=false

新增配置 CommonFilter就在上面的依赖里

@Configuration
public class FilterContextConfig {
    @Bean
    public FilterRegistrationBean sentinelFilterRegistration() {
        FilterRegistrationBean registration = new FilterRegistrationBean();
        registration.setFilter(new CommonFilter());
        registration.addUrlPatterns("/*");
        // 入口资源关闭聚合
        registration.addInitParameter(CommonFilter.WEB_CONTEXT_UNIFY, "false");
        registration.setName("sentinelFilter");
        registration.setOrder(1);
        return registration;
    }
}

[DanBrwon]

2.2.1.RELEASE
com.alibaba.cloud
spring-cloud-alibaba-dependencies
在这个版本中如何解决

@configuration
public class FilterContextConfig {
@bean
public FilterRegistrationBean sentinelFilterRegistration() {
FilterRegistrationBean registration = new FilterRegistrationBean();
registration.setFilter(new CommonFilter());
registration.addUrlPatterns("/*");
// 入口资源关闭聚合
registration.addInitParameter(CommonFilter.WEB_CONTEXT_UNIFY, "false");
registration.setName("sentinelFilter");
registration.setOrder(1);
return registration;
}
}
加入以上是好用了，但是影响到了 implements BlockExceptionHandler 重写的异常处理