Hi, all I am experiencing some issues in UI when using 2.3
when I clicked executor/storage tab, I got the following exception java.lang.NullPointerException at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:388) at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:341) at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:228) at org.spark_project.jetty.servlet.ServletHolder.handle(ServletHolder.java:848) at org.spark_project.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1772) at org.apache.hadoop.yarn.server.webproxy.amfilter.AmIpFilter.doFilter(AmIpFilter.java:164) at org.spark_project.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1759) at org.spark_project.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:582) at org.spark_project.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1180) at org.spark_project.jetty.servlet.ServletHandler.doScope(ServletHandler.java:512) at org.spark_project.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1112) at org.spark_project.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) at org.spark_project.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:493) at org.spark_project.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:213) at org.spark_project.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134) at org.spark_project.jetty.server.Server.handle(Server.java:534) at org.spark_project.jetty.server.HttpChannel.handle(HttpChannel.java:320) at org.spark_project.jetty.server.HttpConnection.onFillable(HttpConnection.java:251) at org.spark_project.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:283) at org.spark_project.jetty.io.FillInterest.fillable(FillInterest.java:108) at org.spark_project.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93) at org.spark_project.jetty.util.thread.strategy.ExecuteProduceConsume.executeProduceConsume(ExecuteProduceConsume.java:303) at org.spark_project.jetty.util.thread.strategy.ExecuteProduceConsume.produceConsume(ExecuteProduceConsume.java:148) at org.spark_project.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:136) at org.spark_project.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:671) at org.spark_project.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:589) Other versions of Spark is running fine in my environment, any idea on what happened? Best, Nan
