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From "Christopher Tubbs (JIRA)" <>
Subject [jira] [Updated] (ACCUMULO-873) Monitor broken on top of MapR
Date Tue, 18 Dec 2012 15:48:12 GMT


Christopher Tubbs updated ACCUMULO-873:

    Assignee: John Vines  (was: Eric Newton)
> Monitor broken on top of MapR
> -----------------------------
>                 Key: ACCUMULO-873
>                 URL:
>             Project: Accumulo
>          Issue Type: Bug
>          Components: monitor
>    Affects Versions: 1.4.1, 1.4.2
>         Environment: MapR
>            Reporter: John Vines
>            Assignee: John Vines
> 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(
> 	at org.apache.accumulo.server.monitor.servlets.DefaultServlet.pageBody(
> 	at org.apache.accumulo.server.monitor.servlets.BasicServlet.doGet(
> 	at org.apache.accumulo.server.monitor.servlets.DefaultServlet.doGet(
> 	at javax.servlet.http.HttpServlet.service(
> 	at javax.servlet.http.HttpServlet.service(
> 	at org.mortbay.jetty.servlet.ServletHolder.handle(
> 	at org.mortbay.jetty.servlet.ServletHandler.handle(
> 	at org.mortbay.jetty.handler.HandlerWrapper.handle(
> 	at org.mortbay.jetty.Server.handle(
> 	at org.mortbay.jetty.HttpConnection.handleRequest(
> 	at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(
> 	at org.mortbay.jetty.HttpParser.parseNext(
> 	at org.mortbay.jetty.HttpParser.parseAvailable(
> 	at org.mortbay.jetty.HttpConnection.handle(
> 	at$
> 	at org.mortbay.thread.QueuedThreadPool${code}

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