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https://issues.apache.org/jira/browse/SPARK-21302?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16303458#comment-16303458
]
Xin Yu Pan commented on SPARK-21302:
------------------------------------
I hit same problem with Spark 2.1.1 History Server. There is no precise steps
to reproduce from my observation. There are 180 completed applications and no
incomplete applications. After restarting History Server, the problem can
disappear, but if running over one day, the problem can be hitted again.
Workaround: restart History Server.
> 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
> Attachments: npe.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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