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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