调用[asyncError()]对于具有异步状态[MUST_DISPATCH]的请求无效

Question

环境:
案例1:
客户端:springboot(1.5.12.RELEASE)+ spring-boot-admin-starter-client 1.5.7

admin:springboot(2.1.1.RELEASE)+ spring-boot-admin-starter-server 2.1.1

当我运行客户端,并刷新管理员应用程序.错误是"调用[asyncError()]对于具有异步状态[MUST_DISPATCH]"的请求无效;

case2:
(2.1.1.RELEASE)客户端和服务器都使用相同的版本并且具有相同的错误.

详细错误如下:

2018-12-04 11:10:40.129 ERROR 2572 --- [nio-9090-exec-5] o.a.catalina.connector.CoyoteAdapter     : Exception while processing an asynchronous request

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-9.0.13.jar:9.0.13]
    at org.apache.coyote.AbstractProcessor.action(AbstractProcessor.java:512) [tomcat-embed-core-9.0.13.jar:9.0.13]
    at org.apache.coyote.Request.action(Request.java:430) ~[tomcat-embed-core-9.0.13.jar:9.0.13]
    at org.apache.catalina.core.AsyncContextImpl.setErrorState(AsyncContextImpl.java:382) ~[tomcat-embed-core-9.0.13.jar:9.0.13]
    at org.apache.catalina.connector.CoyoteAdapter.asyncDispatch(CoyoteAdapter.java:239) ~[tomcat-embed-core-9.0.13.jar:9.0.13]
    at org.apache.coyote.AbstractProcessor.dispatch(AbstractProcessor.java:241) [tomcat-embed-core-9.0.13.jar:9.0.13]
    at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:53) [tomcat-embed-core-9.0.13.jar:9.0.13]
    at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:791) [tomcat-embed-core-9.0.13.jar:9.0.13]
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1417) [tomcat-embed-core-9.0.13.jar:9.0.13]
    at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-9.0.13.jar:9.0.13]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [na:1.8.0_162]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [na:1.8.0_162]
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.13.jar:9.0.13]
    at java.lang.Thread.run(Unknown Source) [na:1.8.0_162]

Answer 1

SBA-UI 使用一些长轮询，当浏览器关闭连接并且服务器尝试在其上写入一些数据时，会记录上述异常。这一切都很正常。应该不会影响申请。欲了解更多信息：https://github.com/spring-projects/spring-boot/issues/15057