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https://issues.apache.org/jira/browse/SPARK-21302?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16364257#comment-16364257
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bharath kumar commented on SPARK-21302:
---------------------------------------
I saw this issue as well with RM Webui, when we click the application master
webpage. We were using sparklyr to connect to Yarn in client mode.
!nullpointer.PNG!
> history server WebUI show HTTP ERROR 500
> ----------------------------------------
>
> Key: SPARK-21302
> URL: https://issues.apache.org/jira/browse/SPARK-21302
> Project: Spark
> Issue Type: Bug
> Components: Web UI
> Affects Versions: 2.1.1
> Reporter: Jason Pan
> Priority: Major
> Attachments: npe.PNG, nullpointer.PNG
>
>
> When navigate to history server WebUI, and check incomplete applications,
> show http 500
> Error logs:
> 17/07/05 20:17:44 INFO ApplicationCacheCheckFilter: Application Attempt
> app-20170705201715-0005-0ce78623-38db-4d23-a2b2-8cb45bb3f505/None updated;
> refreshing
> 17/07/05 20:17:44 WARN ServletHandler:
> /history/app-20170705201715-0005-0ce78623-38db-4d23-a2b2-8cb45bb3f505/executors/
> java.lang.NullPointerException
> at
> org.spark_project.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
> at
> org.spark_project.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:585)
> 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$3.run(QueuedThreadPool.java:555)
> at java.lang.Thread.run(Thread.java:785)
> 17/07/05 20:18:00 WARN ServletHandler: /
> java.lang.NullPointerException
> at
> org.spark_project.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
> at
> org.spark_project.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:585)
> 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.servlets.gzip.GzipHandler.handle(GzipHandler.java:479)
> 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$3.run(QueuedThreadPool.java:555)
> at java.lang.Thread.run(Thread.java:785)
> 17/07/05 20:18:17 WARN ServletHandler: /
> java.lang.NullPointerException
> at
> org.spark_project.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)
> at
> org.spark_project.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:585)
> at
> org.spark_project.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)
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