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Shixiong Zhu commented on SPARK-15869: -------------------------------------- Do you have a reproducer? > HTTP 500 and NPE on streaming batch details page > ------------------------------------------------ > > Key: SPARK-15869 > URL: https://issues.apache.org/jira/browse/SPARK-15869 > Project: Spark > Issue Type: Bug > Components: Streaming, Web UI > Affects Versions: 2.0.0 > Reporter: Maciej BryĆski > > When I'm trying to show details of streaming batch I'm getting NPE. > Sample link: > http://127.0.0.1:4040/streaming/batch/?id=1465553700000 > Error: > {code} > HTTP ERROR 500 > Problem accessing /streaming/batch/. Reason: > Server Error > Caused by: > java.lang.NullPointerException > at > scala.collection.convert.Wrappers$JCollectionWrapper.iterator(Wrappers.scala:59) > at scala.collection.IterableLike$class.foreach(IterableLike.scala:72) > at scala.collection.AbstractIterable.foreach(Iterable.scala:54) > at > scala.collection.TraversableLike$class.groupBy(TraversableLike.scala:320) > at scala.collection.AbstractTraversable.groupBy(Traversable.scala:104) > at > org.apache.spark.streaming.ui.BatchPage.generateJobTable(BatchPage.scala:273) > at org.apache.spark.streaming.ui.BatchPage.render(BatchPage.scala:358) > at org.apache.spark.ui.WebUI$$anonfun$2.apply(WebUI.scala:81) > at org.apache.spark.ui.WebUI$$anonfun$2.apply(WebUI.scala:81) > at org.apache.spark.ui.JettyUtils$$anon$2.doGet(JettyUtils.scala:83) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:687) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) > at > org.spark_project.jetty.servlet.ServletHolder.handle(ServletHolder.java:812) > at > org.spark_project.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:587) > at > org.spark_project.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127) > at > org.spark_project.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515) > at > org.spark_project.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061) > at > org.spark_project.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) > at > org.spark_project.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:215) > at > org.spark_project.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97) > at org.spark_project.jetty.server.Server.handle(Server.java:499) > at > org.spark_project.jetty.server.HttpChannel.handle(HttpChannel.java:311) > at > org.spark_project.jetty.server.HttpConnection.onFillable(HttpConnection.java:257) > at > org.spark_project.jetty.io.AbstractConnection$2.run(AbstractConnection.java:544) > at > org.spark_project.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635) > at > org.spark_project.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555) > at java.lang.Thread.run(Thread.java:745) > {code} -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org