在spark ui中加载stages/stage/< id>页时出错

我正在将我的spark版本从2.4.5升级到spark 3.0.1
一切似乎都按预期工作，但一旦我尝试加载特定阶段的sparkui页面，就会出现以下错误：
无法连接到服务器。看来spark应用程序一定结束了。请切换到历史记录界面。
显然，服务器仍然处于活动状态，并且正在处理新消息。
查看“网络”选项卡显示其中一个请求失败：

curl 'http://<my-host-url>:8080/proxy/app-20201008130147-0001/api/v1/applications/app-20201008130147-0001/stages/11/0/taskTable'

<html>
<head>
<meta http-equiv="Content-Type" content="text/html;charset=utf-8"/>
<title>Error 500 Request failed.</title>
</head>
<body><h2>HTTP ERROR 500</h2>
<p>Problem accessing /api/v1/applications/app-20201008130147-0001/stages/11/0/taskTable. Reason:
<pre>    Request failed.</pre></p><hr><a href="http://eclipse.org/jetty">Powered by Jetty:// 9.4.z-SNAPSHOT</a><hr/>

</body>
</html>

例如，对我测试过的任何其他对象的请求似乎都是有效的

curl 'http://<my-host-url>:8080/proxy/app-20201008130147-0001/api/v1/applications/app-20201008130147-0001/stages/11/0/taskSummary'

在哪里可以找到更多日志来标识服务器中的问题？
更新
找到了日志，但仍不确定修复方法。
例外情况是：

/api/v1/applications/app-20201008130147-0001/stages/11/0/taskTable
javax.servlet.ServletException: java.lang.NullPointerException
    at org.glassfish.jersey.servlet.WebComponent.serviceImpl(WebComponent.java:410)
    at org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:346)
    at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:366)
    at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:319)
    at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:205)
    at org.sparkproject.jetty.servlet.ServletHolder.handle(ServletHolder.java:873)
    at org.sparkproject.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1623)
    at org.apache.spark.ui.HttpSecurityFilter.doFilter(HttpSecurityFilter.scala:95)
    at org.sparkproject.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1610)
    at org.sparkproject.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:540)
    at org.sparkproject.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255)
    at org.sparkproject.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1345)
    at org.sparkproject.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203)
    at org.sparkproject.jetty.servlet.ServletHandler.doScope(ServletHandler.java:480)
    at org.sparkproject.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201)
    at org.sparkproject.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1247)
    at org.sparkproject.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144)
    at org.sparkproject.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:753)
    at org.sparkproject.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:220)
    at org.sparkproject.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
    at org.sparkproject.jetty.server.Server.handle(Server.java:505)
    at org.sparkproject.jetty.server.HttpChannel.handle(HttpChannel.java:370)
    at org.sparkproject.jetty.server.HttpConnection.onFillable(HttpConnection.java:267)
    at org.sparkproject.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:305)
    at org.sparkproject.jetty.io.FillInterest.fillable(FillInterest.java:103)
    at org.sparkproject.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:117)
    at org.sparkproject.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333)
    at org.sparkproject.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310)
    at org.sparkproject.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168)
    at org.sparkproject.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:126)
    at org.sparkproject.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:366)
    at org.sparkproject.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:698)
    at org.sparkproject.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:804)
    at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.NullPointerException
    at org.apache.spark.status.api.v1.StagesResource.$anonfun$doPagination$1(StagesResource.scala:175)
    at org.apache.spark.status.api.v1.BaseAppResource.$anonfun$withUI$1(ApiRootResource.scala:140)
    at org.apache.spark.ui.SparkUI.withSparkUI(SparkUI.scala:107)
    at org.apache.spark.status.api.v1.BaseAppResource.withUI(ApiRootResource.scala:135)
    at org.apache.spark.status.api.v1.BaseAppResource.withUI$(ApiRootResource.scala:133)
    at org.apache.spark.status.api.v1.StagesResource.withUI(StagesResource.scala:28)
    at org.apache.spark.status.api.v1.StagesResource.doPagination(StagesResource.scala:174)
    at org.apache.spark.status.api.v1.StagesResource.$anonfun$taskTable$1(StagesResource.scala:129)
    at org.apache.spark.status.api.v1.BaseAppResource.$anonfun$withUI$1(ApiRootResource.scala:140)
    at org.apache.spark.ui.SparkUI.withSparkUI(SparkUI.scala:107)
    at org.apache.spark.status.api.v1.BaseAppResource.withUI(ApiRootResource.scala:135)
    at org.apache.spark.status.api.v1.BaseAppResource.withUI$(ApiRootResource.scala:133)
    at org.apache.spark.status.api.v1.StagesResource.withUI(StagesResource.scala:28)
    at org.apache.spark.status.api.v1.StagesResource.taskTable(StagesResource.scala:113)
    at sun.reflect.GeneratedMethodAccessor707.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory.lambda$static$0(ResourceMethodInvocationHandlerFactory.java:52)
    at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:124)
    at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:167)
    at org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$TypeOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:219)
    at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:79)
    at org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:469)
    at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:391)
    at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:80)
    at org.glassfish.jersey.server.ServerRuntime$1.run(ServerRuntime.java:253)
    at org.glassfish.jersey.internal.Errors$1.call(Errors.java:248)
    at org.glassfish.jersey.internal.Errors$1.call(Errors.java:244)
    at org.glassfish.jersey.internal.Errors.process(Errors.java:292)
    at org.glassfish.jersey.internal.Errors.process(Errors.java:274)
    at org.glassfish.jersey.internal.Errors.process(Errors.java:244)
    at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:265)
    at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:232)
    at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:680)
    at org.glassfish.jersey.servlet.WebComponent.serviceImpl(WebComponent.java:394)
    ... 33 more

在spark ui中加载stages/stage/< id>页时出错

暂无答案！

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