The input path is fine. Problem in output path. I am just wonder that it
copy the data into local disk (/user/root/) not into hdfs. I dont know
why? Is it we give the correct statement to point to hdfs?
Thanks
On Mon, Nov 19, 2012 at 3:10 PM, Mohammad Tariq <donta...@gmail.com> wrote:
> Try this as your input file path
> Path inputFile = new Path("file:///usr/Eclipse/Output.csv");
>
> Regards,
> Mohammad Tariq
>
>
>
> On Mon, Nov 19, 2012 at 8:31 PM, kashif khan <drkashif8...@gmail.com>wrote:
>
>> when I am applying the command as
>>
>> $ hadoop fs -put /usr/Eclipse/Output.csv /user/root/Output.csv.
>>
>> its work fine and file browsing in the hdfs. But i dont know why its not
>> work in program.
>>
>> Many thanks for your cooperation.
>>
>> Best regards,
>>
>>
>>
>>
>> On Mon, Nov 19, 2012 at 2:53 PM, Mohammad Tariq <donta...@gmail.com>wrote:
>>
>>> It would be good if I could have a look on the files. Meantime try some
>>> other directories. Also, check the directory permissions once.
>>>
>>> Regards,
>>> Mohammad Tariq
>>>
>>>
>>>
>>> On Mon, Nov 19, 2012 at 8:13 PM, kashif khan <drkashif8...@gmail.com>wrote:
>>>
>>>>
>>>> I have tried through root user and made the following changes:
>>>>
>>>>
>>>> Path inputFile = new Path("/usr/Eclipse/Output.csv");
>>>> Path outputFile = new Path("/user/root/Output1.csv");
>>>>
>>>> No result. The following is the log output. The log shows the
>>>> destination is null.
>>>>
>>>>
>>>> 2012-11-19 14:36:38,960 INFO FSNamesystem.audit: allowed=true
>>>> ugi=dr.who (auth:SIMPLE) ip=/134.91.36.41 cmd=getfileinfo
>>>> src=/user dst=null perm=null
>>>> 2012-11-19 14:36:38,977 INFO FSNamesystem.audit: allowed=true
>>>> ugi=dr.who (auth:SIMPLE) ip=/134.91.36.41 cmd=listStatus
>>>> src=/user dst=null perm=null
>>>> 2012-11-19 14:36:39,933 INFO FSNamesystem.audit: allowed=true
>>>> ugi=hbase (auth:SIMPLE) ip=/134.91.36.41 cmd=listStatus
>>>> src=/hbase/.oldlogs dst=null perm=null
>>>> 2012-11-19 14:36:41,147 INFO FSNamesystem.audit: allowed=true
>>>> ugi=dr.who (auth:SIMPLE) ip=/134.91.36.41 cmd=getfileinfo
>>>> src=/user/root dst=null perm=null
>>>> 2012-11-19 14:36:41,229 INFO FSNamesystem.audit: allowed=true
>>>> ugi=dr.who (auth:SIMPLE) ip=/134.91.36.41 cmd=listStatus
>>>> src=/user/root dst=null perm=null
>>>>
>>>>
>>>> Thanks
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> On Mon, Nov 19, 2012 at 2:29 PM, kashif khan <drkashif8...@gmail.com>wrote:
>>>>
>>>>> Yeah, My cluster running. When brows http://hadoop1.example.com:
>>>>> 50070/dfshealth.jsp. I am getting the main page. Then click on Brows file
>>>>> system. I am getting the following:
>>>>>
>>>>> hbase
>>>>> tmp
>>>>> user
>>>>>
>>>>> And when click on user getting:
>>>>>
>>>>> beeswax
>>>>> huuser (I have created)
>>>>> root (I have created)
>>>>>
>>>>> Would you like to see my configuration file. As did not change any
>>>>> things, all by default. I have installed CDH4.1 and running on VMs.
>>>>>
>>>>> Many thanks
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> On Mon, Nov 19, 2012 at 2:04 PM, Mohammad Tariq <donta...@gmail.com>wrote:
>>>>>
>>>>>> Is your cluster running fine? Are you able to browse Hdfs through the
>>>>>> Hdfs Web Console at 50070?
>>>>>>
>>>>>> Regards,
>>>>>> Mohammad Tariq
>>>>>>
>>>>>>
>>>>>>
>>>>>> On Mon, Nov 19, 2012 at 7:31 PM, kashif khan
>>>>>> <drkashif8...@gmail.com>wrote:
>>>>>>
>>>>>>> Many thanks.
>>>>>>>
>>>>>>> I have changed the program accordingly. It does not show any error
>>>>>>> but one warring , but when I am browsing the HDFS folder, file is not
>>>>>>> copied.
>>>>>>>
>>>>>>>
>>>>>>> public class CopyData {
>>>>>>> public static void main(String[] args) throws IOException{
>>>>>>> Configuration conf = new Configuration();
>>>>>>> //Configuration configuration = new Configuration();
>>>>>>> //configuration.addResource(new
>>>>>>> Path("/home/mohammad/hadoop-0.20.205/conf/core-site.xml"));
>>>>>>> //configuration.addResource(new
>>>>>>> Path("/home/mohammad/hadoop-0.20.205/conf/hdfs-site.xml"));
>>>>>>>
>>>>>>> conf.addResource(new Path("/etc/hadoop/conf/core-site.xml"));
>>>>>>> conf.addResource(new Path
>>>>>>> ("/etc/hadoop/conf/hdfs-site.xml"));
>>>>>>> FileSystem fs = FileSystem.get(conf);
>>>>>>> Path inputFile = new Path("/usr/Eclipse/Output.csv");
>>>>>>> Path outputFile = new Path("/user/hduser/Output1.csv");
>>>>>>> fs.copyFromLocalFile(inputFile, outputFile);
>>>>>>> fs.close();
>>>>>>> }
>>>>>>> }
>>>>>>>
>>>>>>> 19-Nov-2012 13:50:32 org.apache.hadoop.util.NativeCodeLoader <clinit>
>>>>>>> WARNING: Unable to load native-hadoop library for your platform...
>>>>>>> using builtin-java classes where applicable
>>>>>>>
>>>>>>> Have any idea?
>>>>>>>
>>>>>>> Many thanks
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> On Mon, Nov 19, 2012 at 1:18 PM, Mohammad Tariq
>>>>>>> <donta...@gmail.com>wrote:
>>>>>>>
>>>>>>>> If it is just copying the files without any processing or change,
>>>>>>>> you can use something like this :
>>>>>>>>
>>>>>>>> public class CopyData {
>>>>>>>>
>>>>>>>> public static void main(String[] args) throws IOException{
>>>>>>>>
>>>>>>>> Configuration configuration = new Configuration();
>>>>>>>> configuration.addResource(new
>>>>>>>> Path("/home/mohammad/hadoop-0.20.205/conf/core-site.xml"));
>>>>>>>> configuration.addResource(new
>>>>>>>> Path("/home/mohammad/hadoop-0.20.205/conf/hdfs-site.xml"));
>>>>>>>> FileSystem fs = FileSystem.get(configuration);
>>>>>>>> Path inputFile = new
>>>>>>>> Path("/home/mohammad/pc/work/FFT.java");
>>>>>>>> Path outputFile = new Path("/mapout/FFT.java");
>>>>>>>> fs.copyFromLocalFile(inputFile, outputFile);
>>>>>>>> fs.close();
>>>>>>>> }
>>>>>>>> }
>>>>>>>>
>>>>>>>> Obviously you have to modify it as per your requirements like
>>>>>>>> continuously polling the targeted directory for new files.
>>>>>>>>
>>>>>>>> Regards,
>>>>>>>> Mohammad Tariq
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> On Mon, Nov 19, 2012 at 6:23 PM, kashif khan <
>>>>>>>> drkashif8...@gmail.com> wrote:
>>>>>>>>
>>>>>>>>> Thanks M Tariq
>>>>>>>>>
>>>>>>>>> As I am new in Java and Hadoop and have no much experience. I am
>>>>>>>>> trying to first write a simple program to upload data into HDFS and
>>>>>>>>> gradually move forward. I have written the following simple program to
>>>>>>>>> upload the file into HDFS, I dont know why it does not working.
>>>>>>>>> could you
>>>>>>>>> please check it, if have time.
>>>>>>>>>
>>>>>>>>> import java.io.BufferedInputStream;
>>>>>>>>> import java.io.BufferedOutputStream;
>>>>>>>>> import java.io.File;
>>>>>>>>> import java.io.FileInputStream;
>>>>>>>>> import java.io.FileOutputStream;
>>>>>>>>> import java.io.IOException;
>>>>>>>>> import java.io.InputStream;
>>>>>>>>> import java.io.OutputStream;
>>>>>>>>> import java.nio.*;
>>>>>>>>> //import java.nio.file.Path;
>>>>>>>>>
>>>>>>>>> import org.apache.hadoop.conf.Configuration;
>>>>>>>>> import org.apache.hadoop.fs.FSDataInputStream;
>>>>>>>>> import org.apache.hadoop.fs.FSDataOutputStream;
>>>>>>>>> import org.apache.hadoop.fs.FileSystem;
>>>>>>>>> import org.apache.hadoop.fs.Path;
>>>>>>>>> public class hdfsdata {
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> public static void main(String [] args) throws IOException
>>>>>>>>> {
>>>>>>>>> try{
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Configuration conf = new Configuration();
>>>>>>>>> conf.addResource(new Path("/etc/hadoop/conf/core-site.xml"));
>>>>>>>>> conf.addResource(new Path ("/etc/hadoop/conf/hdfs-site.xml"));
>>>>>>>>> FileSystem fileSystem = FileSystem.get(conf);
>>>>>>>>> String source = "/usr/Eclipse/Output.csv";
>>>>>>>>> String dest = "/user/hduser/input/";
>>>>>>>>>
>>>>>>>>> //String fileName = source.substring(source.lastIndexOf('/') +
>>>>>>>>> source.length());
>>>>>>>>> String fileName = "Output1.csv";
>>>>>>>>>
>>>>>>>>> if (dest.charAt(dest.length() -1) != '/')
>>>>>>>>> {
>>>>>>>>> dest = dest + "/" +fileName;
>>>>>>>>> }
>>>>>>>>> else
>>>>>>>>> {
>>>>>>>>> dest = dest + fileName;
>>>>>>>>>
>>>>>>>>> }
>>>>>>>>> Path path = new Path(dest);
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> if(fileSystem.exists(path))
>>>>>>>>> {
>>>>>>>>> System.out.println("File" + dest + " already exists");
>>>>>>>>> }
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> FSDataOutputStream out = fileSystem.create(path);
>>>>>>>>> InputStream in = new BufferedInputStream(new
>>>>>>>>> FileInputStream(new File(source)));
>>>>>>>>> File myfile = new File(source);
>>>>>>>>> byte [] b = new byte [(int) myfile.length() ];
>>>>>>>>> int numbytes = 0;
>>>>>>>>> while((numbytes = in.read(b)) >= 0)
>>>>>>>>>
>>>>>>>>> {
>>>>>>>>> out.write(b,0,numbytes);
>>>>>>>>> }
>>>>>>>>> in.close();
>>>>>>>>> out.close();
>>>>>>>>> //bos.close();
>>>>>>>>> fileSystem.close();
>>>>>>>>> }
>>>>>>>>> catch(Exception e)
>>>>>>>>> {
>>>>>>>>>
>>>>>>>>> System.out.println(e.toString());
>>>>>>>>> }
>>>>>>>>> }
>>>>>>>>>
>>>>>>>>> }
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Thanks again,
>>>>>>>>>
>>>>>>>>> Best regards,
>>>>>>>>>
>>>>>>>>> KK
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> On Mon, Nov 19, 2012 at 12:41 PM, Mohammad Tariq <
>>>>>>>>> donta...@gmail.com> wrote:
>>>>>>>>>
>>>>>>>>>> You can set your cronjob to execute the program after every 5
>>>>>>>>>> sec.
>>>>>>>>>>
>>>>>>>>>> Regards,
>>>>>>>>>> Mohammad Tariq
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> On Mon, Nov 19, 2012 at 6:05 PM, kashif khan <
>>>>>>>>>> drkashif8...@gmail.com> wrote:
>>>>>>>>>>
>>>>>>>>>>> Well, I want to automatically upload the files as the files are
>>>>>>>>>>> generating about every 3-5 sec and each file has size about 3MB.
>>>>>>>>>>>
>>>>>>>>>>> Is it possible to automate the system using put or cp command?
>>>>>>>>>>>
>>>>>>>>>>> I read about the flume and webHDFS but I am not sure it will
>>>>>>>>>>> work or not.
>>>>>>>>>>>
>>>>>>>>>>> Many thanks
>>>>>>>>>>>
>>>>>>>>>>> Best regards
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> On Mon, Nov 19, 2012 at 12:26 PM, Alexander Alten-Lorenz <
>>>>>>>>>>> wget.n...@gmail.com> wrote:
>>>>>>>>>>>
>>>>>>>>>>>> Hi,
>>>>>>>>>>>>
>>>>>>>>>>>> Why do you don't use HDFS related tools like put or cp?
>>>>>>>>>>>>
>>>>>>>>>>>> - Alex
>>>>>>>>>>>>
>>>>>>>>>>>> On Nov 19, 2012, at 11:44 AM, kashif khan <
>>>>>>>>>>>> drkashif8...@gmail.com> wrote:
>>>>>>>>>>>>
>>>>>>>>>>>> > HI,
>>>>>>>>>>>> >
>>>>>>>>>>>> > I am generating files continuously in local folder of my base
>>>>>>>>>>>> machine. How
>>>>>>>>>>>> > I can now use the flume to stream the generated files from
>>>>>>>>>>>> local folder to
>>>>>>>>>>>> > HDFS.
>>>>>>>>>>>> > I dont know how exactly configure the sources, sinks and hdfs.
>>>>>>>>>>>> >
>>>>>>>>>>>> > 1) location of folder where files are generating:
>>>>>>>>>>>> /usr/datastorage/
>>>>>>>>>>>> > 2) name node address: htdfs://hadoop1.example.com:8020
>>>>>>>>>>>> >
>>>>>>>>>>>> > Please let me help.
>>>>>>>>>>>> >
>>>>>>>>>>>> > Many thanks
>>>>>>>>>>>> >
>>>>>>>>>>>> > Best regards,
>>>>>>>>>>>> > KK
>>>>>>>>>>>>
>>>>>>>>>>>> --
>>>>>>>>>>>> Alexander Alten-Lorenz
>>>>>>>>>>>> http://mapredit.blogspot.com
>>>>>>>>>>>> German Hadoop LinkedIn Group: http://goo.gl/N8pCF
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>
>
