Jakub Dubovsky created SPARK-22365:
--------------------------------------

             Summary: Spark UI executors empty list with 500 error
                 Key: SPARK-22365
                 URL: https://issues.apache.org/jira/browse/SPARK-22365
             Project: Spark
          Issue Type: Bug
          Components: Web UI
    Affects Versions: 2.2.0
            Reporter: Jakub Dubovsky


No data loaded on "execturos" tab in sparkUI with stack trace below. Apart from 
exception I have nothing more. But if I can test something to make this easier 
to resolve I am happy to help.

{{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:845)
        at 
org.spark_project.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1689)
        at 
org.apache.hadoop.yarn.server.webproxy.amfilter.AmIpFilter.doFilter(AmIpFilter.java:164)
        at 
org.spark_project.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1676)
        at 
org.spark_project.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:581)
        at 
org.spark_project.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1180)
        at 
org.spark_project.jetty.servlet.ServletHandler.doScope(ServletHandler.java:511)
        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:461)
        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:524)
        at 
org.spark_project.jetty.server.HttpChannel.handle(HttpChannel.java:319)
        at 
org.spark_project.jetty.server.HttpConnection.onFillable(HttpConnection.java:253)
        at 
org.spark_project.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:273)
        at 
org.spark_project.jetty.io.FillInterest.fillable(FillInterest.java:95)
        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)
        at java.lang.Thread.run(Thread.java:748)}}



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