Could you please review your configuration to see if you are pointing to the right namenode address ? (This will be in core-site.xml) Please paste it here so we can look for clues.
Thanks hemanth On Tue, Sep 11, 2012 at 9:25 PM, yogesh dhari <yogeshdh...@live.com> wrote: > Hi all, > > I am running hadoop-0.20.2 on single node cluster, > > I run the command > > hadoop fsck / > > it shows error: > > Exception in thread "main" java.net.UnknownHostException: http > at > java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:178) > at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:391) > at java.net.Socket.connect(Socket.java:579) > at java.net.Socket.connect(Socket.java:528) > at sun.net.NetworkClient.doConnect(NetworkClient.java:180) > at sun.net.www.http.HttpClient.openServer(HttpClient.java:378) > at sun.net.www.http.HttpClient.openServer(HttpClient.java:473) > at sun.net.www.http.HttpClient.<init>(HttpClient.java:203) > at sun.net.www.http.HttpClient.New(HttpClient.java:290) > at sun.net.www.http.HttpClient.New(HttpClient.java:306) > at > sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:995) > at > sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:931) > at > sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:849) > at > sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1299) > at org.apache.hadoop.hdfs.tools.DFSck.run(DFSck.java:123) > at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65) > at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79) > at org.apache.hadoop.hdfs.tools.DFSck.main(DFSck.java:159) > > > > > Please suggest why it so.. it should show the health status: >
