Sentinel 1.7.1 版本，SpringMVC模式后台报错 #1392

coolyujiyu · 2020-04-09T10:52:10Z

版本：

SpringBoot：2.2.6.RELEASE
SpringCloud：Hoxton.SR3
SpringCloud Alibaba：2.2.0.RELEASE
Sentinel：1.7.1
JDK：1.8
运行环境：undertow

使用Demo里面的案例来配置了自动埋点

    @Override
    public void addInterceptors(InterceptorRegistry registry) {
         SentinelWebMvcConfig config = new SentinelWebMvcConfig();
          config.setBlockExceptionHandler(new TimeBlockExceptionHandler());
          config.setHttpMethodSpecify(true);
          registry.addInterceptor(new SentinelWebInterceptor(config)).addPathPatterns("/**");
    }

然后流量控制没有问题，但是后台一直在报错

2020-04-09 14:02:37.735 ERROR [system,fa92d2578e7f1288,fa92d2578e7f1288,false] 24904 --- [ XNIO-1 task-19] o.s.web.servlet.HandlerExecutionChain    : HandlerInterceptor.afterCompletion threw exception

com.alibaba.csp.sentinel.ErrorEntryFreeException: The order of entry exit can't be paired with the order of entry, current entry in context: </menus>, but expected: </menus>
	at com.alibaba.csp.sentinel.CtEntry.exitForContext(CtEntry.java:80)
	at com.alibaba.csp.sentinel.CtEntry.trueExit(CtEntry.java:108)
	at com.alibaba.csp.sentinel.CtEntry.exit(CtEntry.java:61)
	at com.alibaba.csp.sentinel.Entry.exit(Entry.java:79)
	at com.alibaba.csp.sentinel.adapter.spring.webmvc.AbstractSentinelInterceptor.traceExceptionAndExit(AbstractSentinelInterceptor.java:122)
	at com.alibaba.csp.sentinel.adapter.spring.webmvc.AbstractSentinelInterceptor.afterCompletion(AbstractSentinelInterceptor.java:87)
	at org.springframework.web.servlet.HandlerExecutionChain.triggerAfterCompletion(HandlerExecutionChain.java:179)
	at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1136)
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1057)
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943)
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)
	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:503)
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:590)
	at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:74)
	at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:129)
	at brave.servlet.TracingFilter.doFilter(TracingFilter.java:67)
	at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
	at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
	at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
	at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
	at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
	at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
	at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
	at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
	at org.springframework.cloud.sleuth.instrument.web.ExceptionLoggingFilter.doFilter(ExceptionLoggingFilter.java:50)
	at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
	at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
	at brave.servlet.TracingFilter.doFilter(TracingFilter.java:84)
	at org.springframework.cloud.sleuth.instrument.web.LazyTracingFilter.doFilter(TraceWebServletAutoConfiguration.java:138)
	at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
	at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
	at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:109)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
	at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
	at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)
	at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:61)
	at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131)
	at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84)
	at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62)
	at io.undertow.servlet.handlers.ServletChain$1.handleRequest(ServletChain.java:68)
	at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
	at io.undertow.servlet.handlers.RedirectDirHandler.handleRequest(RedirectDirHandler.java:68)
	at io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:132)
	at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:57)
	at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
	at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)
	at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)
	at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60)
	at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77)
	at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43)
	at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
	at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
	at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:269)
	at io.undertow.servlet.handlers.ServletInitialHandler.access$100(ServletInitialHandler.java:78)
	at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:133)
	at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:130)
	at io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48)
	at io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43)
	at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:249)
	at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:78)
	at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:99)
	at io.undertow.server.Connectors.executeRootHandler(Connectors.java:376)
	at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:830)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)

The text was updated successfully, but these errors were encountered:

sczyh30 · 2020-04-10T02:10:38Z

也帮忙提供下 ~/logs/csp/sentinel-record.log.xxx 看看有没有一些错误信息。

coolyujiyu · 2020-04-10T04:18:22Z

csp.zip
我清理了日志，然后最小化的重现了一次，整个csp的日志都在里面了

cjdxhjj · 2020-04-13T10:12:12Z

我也复现了同样的问题，经常报错。我的使用代码如下



异常出现的次数非常频繁

sczyh30 · 2020-04-13T11:03:49Z

我也复现了同样的问题，经常报错。我的使用代码如下



异常出现的次数非常频繁

You may use SphU.asyncEntry(xxx). See https://github.com/alibaba/Sentinel/wiki/How-to-Use#resource-for-asynchronous-entries for details.

sczyh30 · 2020-04-13T12:11:04Z

我那个test4就是异步完成时close entry,但是有一个问题，100个请求没有block的，我的超时时间是50ms,时间窗口2s,服务delay 了一秒,我日志显示是都调用到后端了

It's not related to this issue. Please open a new issue to discuss this.

cjdxhjj · 2020-04-13T12:12:32Z

能留个qq么？或微信，QQ上找不到群。

cjdxhjj · 2020-04-13T12:24:06Z

已经把异步的另提了一个issure

sczyh30 · 2020-04-23T08:01:32Z

csp.zip
我清理了日志，然后最小化的重现了一次，整个csp的日志都在里面了

从日志来看，像是开启了 HTTP method 前缀支持，这样的话资源名里面理论上不应该有不包含 HTTP method 前缀的 URL（比如 /orgs）。有没有引其它的 Web 适配，或者有没有什么特殊配置？

coolyujiyu · 2020-04-23T08:03:37Z

csp.zip
我清理了日志，然后最小化的重现了一次，整个csp的日志都在里面了

从日志来看，像是开启了 HTTP method 前缀支持，这样的话资源名里面理论上不应该有不包含 HTTP method 前缀的 URL（比如 /orgs）。有没有引其它的 Web 适配，或者有没有什么特殊配置？

没有了，所有的配置都在这里了

@Override

public void addInterceptors(InterceptorRegistry registry) {
     SentinelWebMvcConfig config = new SentinelWebMvcConfig();
      config.setBlockExceptionHandler(new TimeBlockExceptionHandler());
      config.setHttpMethodSpecify(true);
      registry.addInterceptor(new SentinelWebInterceptor(config)).addPathPatterns("/**");
}

我也尝试过设置HttpMethodSpecify为false，但是还是报错

sczyh30 · 2020-04-23T08:05:31Z

csp.zip
我清理了日志，然后最小化的重现了一次，整个csp的日志都在里面了

从日志来看，像是开启了 HTTP method 前缀支持，这样的话资源名里面理论上不应该有不包含 HTTP method 前缀的 URL（比如 /orgs）。有没有引其它的 Web 适配，或者有没有什么特殊配置？

没有了，所有的配置都在这里了
@Override
public void addInterceptors(InterceptorRegistry registry) {
     SentinelWebMvcConfig config = new SentinelWebMvcConfig();
      config.setBlockExceptionHandler(new TimeBlockExceptionHandler());
      config.setHttpMethodSpecify(true);
      registry.addInterceptor(new SentinelWebInterceptor(config)).addPathPatterns("/**");
}
我也尝试过设置HttpMethodSpecify为false，但是还是报错

可否帮忙提供一个能够复现问题的最小化的项目？社区来看一下

coolyujiyu · 2020-04-23T09:14:37Z

demo.zip

附件里面我新初始化的一个项目，随便请求几次接口就复现了
http://localhost:8080/test/test

`com.alibaba.csp.sentinel.ErrorEntryFreeException: The order of entry exit can't be paired with the order of entry, current entry in context: GET:/error, but expected:
at com.alibaba.csp.sentinel.CtEntry.exitForContext(CtEntry.java:80) ~[sentinel-core-1.7.1.jar:1.7.1]
at com.alibaba.csp.sentinel.CtEntry.trueExit(CtEntry.java:108) ~[sentinel-core-1.7.1.jar:1.7.1]
at com.alibaba.csp.sentinel.CtEntry.exit(CtEntry.java:61) ~[sentinel-core-1.7.1.jar:1.7.1]
at com.alibaba.csp.sentinel.Entry.exit(Entry.java:79) ~[sentinel-core-1.7.1.jar:1.7.1]
at com.alibaba.csp.sentinel.adapter.spring.webmvc.AbstractSentinelInterceptor.traceExceptionAndExit(AbstractSentinelInterceptor.java:122) ~[sentinel-spring-webmvc-adapter-1.7.1.jar:na]
at com.alibaba.csp.sentinel.adapter.spring.webmvc.AbstractSentinelInterceptor.afterCompletion(AbstractSentinelInterceptor.java:87) ~[sentinel-spring-webmvc-adapter-1.7.1.jar:na]
at org.springframework.web.servlet.HandlerExecutionChain.triggerAfterCompletion(HandlerExecutionChain.java:179) ~[spring-webmvc-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1136) [spring-webmvc-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1057) [spring-webmvc-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943) [spring-webmvc-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) [spring-webmvc-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) [spring-webmvc-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:634) [tomcat-embed-core-9.0.33.jar:9.0.33]
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) [spring-webmvc-5.2.5.RELEASE.jar:5.2.5.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) [tomcat-embed-core-9.0.33.jar:9.0.33]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) [tomcat-embed-core-9.0.33.jar:9.0.33]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.33.jar:9.0.33]
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:712) [tomcat-embed-core-9.0.33.jar:9.0.33]
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:461) [tomcat-embed-core-9.0.33.jar:9.0.33]
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:384) [tomcat-embed-core-9.0.33.jar:9.0.33]
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:312) [tomcat-embed-core-9.0.33.jar:9.0.33]
at org.apache.catalina.core.StandardHostValve.custom(StandardHostValve.java:394) [tomcat-embed-core-9.0.33.jar:9.0.33]
at org.apache.catalina.core.StandardHostValve.status(StandardHostValve.java:253) [tomcat-embed-core-9.0.33.jar:9.0.33]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:175) [tomcat-embed-core-9.0.33.jar:9.0.33]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) [tomcat-embed-core-9.0.33.jar:9.0.33]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) [tomcat-embed-core-9.0.33.jar:9.0.33]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) [tomcat-embed-core-9.0.33.jar:9.0.33]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:373) [tomcat-embed-core-9.0.33.jar:9.0.33]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) [tomcat-embed-core-9.0.33.jar:9.0.33]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868) [tomcat-embed-core-9.0.33.jar:9.0.33]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1594) [tomcat-embed-core-9.0.33.jar:9.0.33]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-9.0.33.jar:9.0.33]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_231]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_231]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.33.jar:9.0.33]
at java.lang.Thread.run(Thread.java:748) [na:1.8.0_231]

`

sczyh30 · 2020-04-23T12:23:44Z

看了下，应该是重复引入了 SentinelWebInterceptor。Spring Cloud Alibaba 2.2.0.RELEASE 及以上版本默认已经自动配置了 SentinelWebInterceptor，代码里不要重复配置，配置方式可参考 SCA 的文档。

sczyh30 · 2020-04-23T12:24:16Z

可以试一下 2.2.1.RELEASE 版本

coolyujiyu · 2020-04-23T13:11:00Z

看了下，应该是重复引入了 SentinelWebInterceptor。Spring Cloud Alibaba 2.2.0.RELEASE 及以上版本默认已经自动配置了 SentinelWebInterceptor，代码里不要重复配置，配置方式可参考 SCA 的文档。

我以前是没有配置的，但是不配置的话，SCA的自动注册链路，很多URL都捕获不到，不过我刚刚升级到了2.2.1.RELEASE版本，好像解决了链路注册不到的问题

如果不用这个MVC配置的话，SCA中的BlockExceptionHandler这个怎么指定呢？不然只能返回默认的错误信息：Blocked by Sentinel (flow limiting) 我看了下SCA的文档里面没有体现

coolyujiyu · 2020-04-23T13:44:08Z

SCA那边的文档还是之前的配置BlockExceptionHandler方法，但是在最新版本的Sentinel里面已经没有了WebCallbackManager这个，所以我只能用上面的配置方法来指定了

SentinelWebMvcConfig config = new SentinelWebMvcConfig();
config.setBlockExceptionHandler(new TimeBlockExceptionHandler());

Icecream0211 · 2020-04-26T06:10:02Z

csp.zip
我清理了日志，然后最小化的重现了一次，整个csp的日志都在里面了

从日志来看，像是开启了 HTTP method 前缀支持，这样的话资源名里面理论上不应该有不包含 HTTP method 前缀的 URL（比如 /orgs）。有没有引其它的 Web 适配，或者有没有什么特殊配置？

没有了，所有的配置都在这里了
@Override
public void addInterceptors(InterceptorRegistry registry) {
     SentinelWebMvcConfig config = new SentinelWebMvcConfig();
      config.setBlockExceptionHandler(new TimeBlockExceptionHandler());
      config.setHttpMethodSpecify(true);
      registry.addInterceptor(new SentinelWebInterceptor(config)).addPathPatterns("/**");
}
我也尝试过设置HttpMethodSpecify为false，但是还是报错

不要尝试注册SentinelWebMvcConfig了，因为starter默认配置一个SentinelWebAutoConfiguration，会注册一个SentinelWebMvcConfig。如果自己再注册一个，位置在第二个，出现异常，第一个就已经处理了，不会过滤到第二个mvcConfig中配置的interceptor中。正确的自定义BlockExceptionHandler姿势：
直接在@configuration文件中，
@bean
public BlockExceptionHandler blockExceptionHandler(){
return new XXXBlockExceptionHandler();
}
这样，自定义的BlockExceptionHandler就可以生效了

coolyujiyu · 2020-04-26T13:26:36Z

谢谢，已经解决了

sczyh30 added area/integrations Issues or PRs related to integrations with open-source components good first issue Good for newcomers labels Apr 10, 2020

sczyh30 removed the good first issue Good for newcomers label Apr 10, 2020

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sczyh30 added the kind/question Category issues related to questions or problems label Apr 23, 2020

coolyujiyu closed this as completed Apr 26, 2020

sczyh30 mentioned this issue May 8, 2020

ErrorEntryFreeException in Spring Web interceptor (server is Undertow) #1465

Closed

cdfive mentioned this issue May 14, 2020

Spring Web adapter throws ErrorEntryFreeException #1482

Closed

sczyh30 mentioned this issue Jun 5, 2020

I get a Exception ：com.alibaba.csp.sentinel.ErrorEntryFreeException #1523

Closed

cdfive mentioned this issue Jun 8, 2020

ErrorEntryFreeException:current entry in context: </error> #1531

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Sentinel 1.7.1 版本，SpringMVC模式后台报错 #1392

Sentinel 1.7.1 版本，SpringMVC模式后台报错 #1392

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edited by sczyh30

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Sentinel 1.7.1 版本，SpringMVC模式后台报错 #1392

Sentinel 1.7.1 版本，SpringMVC模式后台报错 #1392

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