Re: Problem accessing /master-status

Jimmy Xiang wrote:

It may not be null actually.  It is most likely because the hostname cannot
be resolved to an IP address.

Thanks,
Jimmy

On Mon, Feb 6, 2012 at 10:10 AM, devrant <evan.conkle@gmail.com> wrote:

>
> I received this error below...does anyone know why the hostname is "null"?
>
> HTTP ERROR 500
>
> Problem accessing /master-status. Reason:
>
>    hostname can't be null
>
> Caused by:
>
> java.lang.IllegalArgumentException: hostname can't be null
>        at java.net.InetSocketAddress.<init>(InetSocketAddress.java:121)
>        at
>
> org.apache.hadoop.hbase.HServerAddress.getResolvedAddress(HServerAddress.java:108)
>        at
> org.apache.hadoop.hbase.HServerAddress.<init>(HServerAddress.java:64)
>        at
>
> org.apache.hadoop.hbase.zookeeper.RootRegionTracker.dataToHServerAddress(RootRegionTracker.java:82)
>        at
>
> org.apache.hadoop.hbase.zookeeper.RootRegionTracker.getRootRegionLocation(RootRegionTracker.java:61)
>        at
>
> org.apache.hadoop.hbase.catalog.CatalogTracker.getRootLocation(CatalogTracker.java:163)
>        at
>
> org.apache.hadoop.hbase.master.MasterStatusServlet.getRootLocationOrNull(MasterStatusServlet.java:82)
>        at
>
> org.apache.hadoop.hbase.master.MasterStatusServlet.doGet(MasterStatusServlet.java:59)
>        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:511)
>        at
>
> org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1221)
>        at
>
> org.apache.hadoop.http.HttpServer$QuotingInputFilter.doFilter(HttpServer.java:829)
>        at
>
> org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
>        at
> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399)
>        at
> org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
>        at
> org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
>        at
> org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
>        at
> org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
>        at
>
> org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
>        at
> org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
>        at org.mortbay.jetty.Server.handle(Server.java:326)
>        at
> org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
>        at
>
> org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928)
>        at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
>        at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
>        at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
>        at
>
> org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
> --
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>
>