java.lang.IllegalStateException: Calling [asyncError()] is not valid for a request with Async state

1.这个问题是在搭建spring-admin监控的时候发现的,

版本如下
spring-boot: 2.1.7.RELEASE
spring-boot-admin:2.1.5

问题的相关描述看这里

https://github.com/spring-projects/spring-boot/issues/15057

java.lang.IllegalStateException: Calling [asyncError()] is not valid for a request with Async state [MUST_DISPATCH]at org.apache.coyote.AsyncStateMachine.asyncError(AsyncStateMachine.java:440) ~[tomcat-embed-core-9.0.22.jar:9.0.22]at org.apache.coyote.AbstractProcessor.action(AbstractProcessor.java:512) [tomcat-embed-core-9.0.22.jar:9.0.22]at org.apache.coyote.Request.action(Request.java:430) ~[tomcat-embed-core-9.0.22.jar:9.0.22]at org.apache.catalina.core.AsyncContextImpl.setErrorState(AsyncContextImpl.java:401) ~[tomcat-embed-core-9.0.22.jar:9.0.22]at org.apache.catalina.connector.CoyoteAdapter.asyncDispatch(CoyoteAdapter.java:239) ~[tomcat-embed-core-9.0.22.jar:9.0.22]at org.apache.coyote.AbstractProcessor.dispatch(AbstractProcessor.java:241) [tomcat-embed-core-9.0.22.jar:9.0.22]at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:53) [tomcat-embed-core-9.0.22.jar:9.0.22]at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:853) [tomcat-embed-core-9.0.22.jar:9.0.22]at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1587) [tomcat-embed-core-9.0.22.jar:9.0.22]at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-9.0.22.jar:9.0.22]at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_91]at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_91]at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.22.jar:9.0.22]at java.lang.Thread.run(Thread.java:745) [na:1.8.0_91]2021-02-05 11:06:05.148 ERROR 20352 --- [nio-9301-exec-7] o.a.catalina.connector.CoyoteAdapter     : Exception while processing an asynchronous requestjava.lang.IllegalStateException: Calling [asyncError()] is not valid for a request with Async state [MUST_DISPATCH]at org.apache.coyote.AsyncStateMachine.asyncError(AsyncStateMachine.java:440) ~[tomcat-embed-core-9.0.22.jar:9.0.22]at org.apache.coyote.AbstractProcessor.action(AbstractProcessor.java:512) [tomcat-embed-core-9.0.22.jar:9.0.22]at org.apache.coyote.Request.action(Request.java:430) ~[tomcat-embed-core-9.0.22.jar:9.0.22]at org.apache.catalina.core.AsyncContextImpl.setErrorState(AsyncContextImpl.java:401) ~[tomcat-embed-core-9.0.22.jar:9.0.22]at

2. 里面有建议的暂行解决方案是降级tomcat

也可以使用jetty替换,去除tomcat的依赖

 <dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId><exclusions><exclusion><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-tomcat</artifactId></exclusion></exclusions></dependency>

<dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-jetty</artifactId></dependency>

实测这个问题在jetty中不存在

另外还有一个关于spring-boot-admin的问题

如果server启动的时候没有client注册上,页面会一直显示加载中,查看请求的时候是application一直在请求

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java.lang.IllegalStateException: Calling [asyncError()] is not valid for a request with Async state

1.这个问题是在搭建spring-admin监控的时候发现的,

2. 里面有建议的暂行解决方案是降级tomcat

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