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From "Mike Walch (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (ACCUMULO-4580) Exception on Monitor 'Scans' page
Date Wed, 01 Feb 2017 21:23:52 GMT

     [ https://issues.apache.org/jira/browse/ACCUMULO-4580?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Mike Walch updated ACCUMULO-4580:
---------------------------------
    Description: 
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)


  was:
I was running continuous ingest tests against an Accumulo cluster when I saw the following
exception on the "Scans" pages in the monitor:

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)



> 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
>
> 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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