Many Thanks Nitin for your quick reply.
Heres what i have in my hosts file and i am running in VM i m assuming it is
the pseudo mode:
*********************
127.0.0.1 localhost.localdomain localhost
#::1 ubuntu localhost6.localdomain6 localhost6
#127.0.1.1 ubuntu
127.0.0.1 ubuntu
# The following lines are desirable for IPv6 capable hosts
::1 localhost ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
ff02::3 ip6-allhosts
*********************
In my masters i have:
ubuntu
In my slaves i have:
localhost
***********************
My question is in my variable below:
public static String fsURI = "hdfs://master:9000";
what would be the right value so i can connect to Hadoop successfully.
Please let me know if you need more info.
Thanks
Sai
________________________________
From: Nitin Pawar <nitinpawar...@gmail.com>
To: user@hadoop.apache.org; Sai Sai <saigr...@yahoo.in>
Sent: Sunday, 24 February 2013 3:42 AM
Subject: Re: Trying to copy file to Hadoop file system from a program
if you want to use master as your hostname then make such entry in your
/etc/hosts file
or change the hdfs://master to hdfs://localhost
On Sun, Feb 24, 2013 at 5:10 PM, Sai Sai <saigr...@yahoo.in> wrote:
>
>Greetings,
>
>
>Below is the program i am trying to run and getting this exception:
>***************************************
>
>Test Start.....
>java.net.UnknownHostException: unknown host: master
> at org.apache.hadoop.ipc.Client$Connection.<init>(Client.java:214)
> at org.apache.hadoop.ipc.Client.getConnection(Client.java:1196)
> at org.apache.hadoop.ipc.Client.call(Client.java:1050)
> at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:225)
> at $Proxy1.getProtocolVersion(Unknown Source)
> at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:396)
> at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:379)
> at org.apache.hadoop.hdfs.DFSClient.createRPCNamenode(DFSClient.java:119)
> at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:238)
> at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:203)
> at
org.apache.hadoop.hdfs.DistributedFileSystem.initialize(DistributedFileSystem.java:89)
> at kelly.hadoop.hive.test.HadoopTest.main(HadoopTest.java:54)
>
>
>
>
>********************
>
>
>
>public class HdpTest {
>
> public static String fsURI = "hdfs://master:9000";
>
>
> public static void copyFileToDFS(FileSystem fs, String srcFile,
>
String dstFile) throws IOException {
> try {
> System.out.println("Initialize copy...");
> URI suri = new URI(srcFile);
> URI duri = new URI(fsURI + "/" + dstFile);
> Path dst = new Path(duri.toString());
> Path src = new Path(suri.toString());
> System.out.println("Start copy...");
> fs.copyFromLocalFile(src, dst);
> System.out.println("End copy...");
> } catch (Exception e)
{
> e.printStackTrace();
> }
> }
>
> public static void main(String[] args) {
> try {
> System.out.println("Test Start.....");
> Configuration conf = new Configuration();
> DistributedFileSystem fs = new DistributedFileSystem();
> URI duri = new URI(fsURI);
> fs.initialize(duri, conf); // Here is the xception occuring
> long start = 0, end = 0;
>
start = System.nanoTime();
> //writing data from local to HDFS
> copyFileToDFS(fs, "/home/kosmos/Work/input/wordpair.txt",
> "/input/raptor/trade1.txt");
> //Writing data from HDFS to Local
>// copyFileFromDFS(fs, "/input/raptor/trade1.txt",
>"/home/kosmos/Work/input/wordpair1.txt");
> end = System.nanoTime();
> System.out.println("Total Execution times: " + (end - start));
> fs.close();
> } catch
(Throwable t) {
> t.printStackTrace();
> }
> }
>
>******************************
>I am trying to access in FireFox this url:
>
>hdfs://master:9000
>
>
>Get an error msg FF does not know how to display this message.
>
>
>I can successfully access my admin page:
>
>
>http://localhost:50070/dfshealth.jsp
>
>
>Just wondering if anyone can give me any suggestions, your help will be really
>appreciated.
>ThanksSai
>
>
>
--
Nitin Pawar
