[jira] [Commented] (ACCUMULO-4580) Exception on Monitor 'Scans' page

["Christopher Tubbs (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ACCUMULO-4580?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15851088#comment-15851088 ] 

Christopher Tubbs commented on ACCUMULO-4580:
---------------------------------------------

This might be fixed by ACCUMULO-3005 REST/AJAX work that [~lstav] has picked up.

> Exception on Monitor 'Scans' page
> ---------------------------------
>
>                 Key: ACCUMULO-4580
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-4580
>             Project: Accumulo
>          Issue Type: Bug
>          Components: monitor
>    Affects Versions: 2.0.0
>            Reporter: Mike Walch
>             Fix For: 2.0.0
>
>
> I was running continuous ingest tests against an Accumulo cluster when I saw the following exception on the "Active Scans" pages in the monitor when the Accumulo master was down.  When the master was brought back up, the exception went away.
> java.lang.NullPointerException
> 	at org.apache.accumulo.monitor.servlets.ScanServlet.pageBody(ScanServlet.java:52)
> 	at org.apache.accumulo.monitor.servlets.BasicServlet.doGet(BasicServlet.java:79)
> 	at javax.servlet.http.HttpServlet.service(HttpServlet.java:687)
> 	at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
> 	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:812)
> 	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:587)
> 	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
> 	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:577)
> 	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223)
> 	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1127)
> 	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)
> 	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
> 	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1061)
> 	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
> 	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
> 	at org.eclipse.jetty.server.Server.handle(Server.java:499)
> 	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:311)
> 	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257)
> 	at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:544)
> 	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)
> 	at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)
> 	at java.lang.Thread.run(Thread.java:745)



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