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  1. Accumulo
  2. ACCUMULO-4580

Exception on Monitor 'Scans' page

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 2.0.0
    • Fix Version/s: 2.0.0
    • Component/s: monitor
    • Labels:
      None

      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)

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              • Assignee:
                lstav Luis Tavarez
                Reporter:
                mikewalch Mike Walch
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                Dates

                • Created:
                  Updated:
                  Resolved: