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From "John Vines (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (ACCUMULO-873) Remove hadoop boxes from monitor
Date Tue, 18 Dec 2012 16:42:12 GMT

     [ https://issues.apache.org/jira/browse/ACCUMULO-873?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

John Vines updated ACCUMULO-873:
--------------------------------

    Fix Version/s: 1.4.3
                   1.5.0
      Description: Accumulo includes some HDFS information on the Overview page of the monitor.
Unfortunately, there is not cosistency in hadoop and hadoop compatible distributions with
regard to their stats apis. When these failures do happen, it breaks everything on the overview
page, which includes the graphs. We should just purge them. People can get their dfs/jt stats
from the respective services if they want them.  (was: 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})
      Environment:     (was: MapR)
          Summary: Remove hadoop boxes from monitor  (was: Monitor broken on top of MapR)
    
> Remove hadoop boxes from monitor
> --------------------------------
>
>                 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
>            Reporter: John Vines
>            Assignee: John Vines
>             Fix For: 1.5.0, 1.4.3
>
>
> Accumulo includes some HDFS information on the Overview page of the monitor. Unfortunately,
there is not cosistency in hadoop and hadoop compatible distributions with regard to their
stats apis. When these failures do happen, it breaks everything on the overview page, which
includes the graphs. We should just purge them. People can get their dfs/jt stats from the
respective services if they want them.

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