Hi,
My code looks like this:
*import java.util.*;*
*import java.lang.*;*
*import java.io.*;*
*import org.apache.hadoop.*;*
*
*
*class MapReduce {*
* *
*public static void main(String[] args) throws Exception {*
**
* try {*
* Path pt=new Path(
"hdfs://localhost:54310//Users/arko/Documents/Research/HDFS/abc");*
* FileSystem fs = FileSystem.get(new Configuration());*
* BufferedWriter br=new BufferedWriter(new
OutputStreamWriter(fs.create(pt,true)));*
* String line;*
* line="Testing";*
* System.out.println(line);*
* br.write(line);*
* br.close();*
* }catch(Exception e){*
* System.out.println("File not found");*
* }*
* }*
*}*
When I compile the code, I get the following erros:
*$javac -classpath
/Users/arko/Documents/hadoop-0.21.0/hadoop-common-0.21.0.jar -d class/
FileSystemCat.java clear*
FileTest.java:16: cannot find symbol
symbol : class Path
location: class FileTest
Path pt=new
Path("hdfs://localhost:54310//Users/arko/Documents/Research/HDFS/abc");
^
FileTest.java:16: cannot find symbol
symbol : class Path
location: class FileTest
Path pt=new
Path("hdfs://localhost:54310//Users/arko/Documents/Research/HDFS/abc");
^
FileTest.java:17: java.io.FileSystem is not public in java.io; cannot be
accessed from outside package
FileSystem fs = FileSystem.get(new Configuration());
^
FileTest.java:17: cannot find symbol
symbol : class Configuration
location: class FileTest
FileSystem fs = FileSystem.get(new Configuration());
^
FileTest.java:17: java.io.FileSystem is not public in java.io; cannot be
accessed from outside package
FileSystem fs = FileSystem.get(new Configuration());
^
5 errors
Also I would like to learn the FileContext API as I want to use 0.21 for
making appends to my file in each MR round.
Would be great if you have a place where I can have a look at some code
snippets that have demonstrated the use of FileContext for easy learning.
Many thanks in advance!
Warm regards
Arko
On Thu, Sep 1, 2011 at 2:24 AM, Arun C Murthy <a...@hortonworks.com> wrote:
> What kind of example code are you looking for? It will help if you describe
> your use case...
>
> On Aug 31, 2011, at 1:13 AM, Arko Provo Mukherjee wrote:
>
> > Hi,
> >
> > I am using HDFS on 0.20.203 for my project.
> >
> > I can see the API has evolved much over the different versions.
> >
> > Can you please guide me to some link where I can find some example code
> for any version >= 0.20.203 so that I can quick start the process.
> >
> > Thanks much in advance!
> >
> > Warm regards
> > Arko
>
>
