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From "John Vines (JIRA)" <j...@apache.org>
Subject [jira] [Created] (ACCUMULO-873) Monitor broken on top of MapR
Date Mon, 26 Nov 2012 16:46:58 GMT
John Vines created ACCUMULO-873:
-----------------------------------

             Summary: Monitor broken on top of MapR
                 Key: ACCUMULO-873
                 URL: https://issues.apache.org/jira/browse/ACCUMULO-873
             Project: Accumulo
          Issue Type: Bug
          Components: monitor
    Affects Versions: 1.4.1, 1.4.2
         Environment: MapR
            Reporter: John Vines
            Assignee: Eric Newton


Accumulo includes some HDFS information on the Overview page of the monitor. Unfortunately,
on MapR, there is a casting issue which causes everything on the page to break. Ideally, I
would like to see this work, either from MapR being part of the same Interface or us supporting
MapR in this space. At the very least, I would like to see the monitor unkinked so that if
there IS an error, we at least get the useful graphs.

{code}java.lang.ClassCastException: com.mapr.fs.MapRFileSystem cannot be cast to org.apache.hadoop.hdfs.DistributedFileSystem
	at org.apache.accumulo.server.monitor.servlets.DefaultServlet.doHdfsTable(DefaultServlet.java:297)
	at org.apache.accumulo.server.monitor.servlets.DefaultServlet.pageBody(DefaultServlet.java:207)
	at org.apache.accumulo.server.monitor.servlets.BasicServlet.doGet(BasicServlet.java:62)
	at org.apache.accumulo.server.monitor.servlets.DefaultServlet.doGet(DefaultServlet.java:146)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
	at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:502)
	at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:363)
	at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
	at org.mortbay.jetty.Server.handle(Server.java:324)
	at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:534)
	at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:864)
	at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:533)
	at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:207)
	at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:403)
	at org.mortbay.jetty.bio.SocketConnector$Connection.run(SocketConnector.java:228)
	at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:522){code}

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