You can do like this. Configuration conf = getConf();
FileSystem fs = FileSystem.get(conf); FileStatus[] fstatus = fs.listStatus(new Path(...)); String generatedFile; for (int i=0; i<fstatus.length; i++) { generatedFile = fstatus[i].getPath().getName(); System.out.println("File Name : " + generatedFile); } On 2/5/15, xeonmailinglist <xeonmailingl...@gmail.com> wrote: > Hi, > > I want to list files in the HDFS using the |FileUtil.listFiles| but all > I get is IOException errors. The code, error and the output is below. > How I list files in HDFS? > > |Exception in thread "main" java.io.IOException: Invalid directory or I/O > error occurred for dir: /outputmp > | > > I have this code > > | try{ > File[] mapOutputFiles = FileUtil.listFiles(new > File("webhdfs://hadoop-coc-1/outputmp/")); > System.out.println("1 success: " + mapOutputFiles.length); > } catch (Exception e) { > System.out.println("1 failed"); > } > > try { > File[] mapOutputFiles2 = FileUtil.listFiles(new > File("webhdfs://hadoop-coc-1/outputmp")); > System.out.println("2 success: " + mapOutputFiles2.length); > } catch (Exception e) { > System.out.println("2 failed"); > } > > try { > File[] mapOutputFiles3 = FileUtil.listFiles(new > File("/outputmp")); > System.out.println("3 success: " + mapOutputFiles3.length); > } catch (Exception e) { > System.out.println("3 failed"); > } > try { > File[] mapOutputFiles4 = FileUtil.listFiles(new > File("/outputmp/")); > System.out.println("4 success: " + mapOutputFiles4.length); > } catch (Exception e) { > System.out.println("4 failed"); > } > | > > The output > > |1 failed > 2 failed > 3 failed > 4 failed > | > > The output exists > > |vagrant@hadoop-coc-1:~/Programs/hadoop$ hdfs dfs -ls /outputmp > Found 2 items > -rw-r--r-- 2 vagrant supergroup 0 2015-02-05 15:50 > /outputmp/_SUCCESS > -rw-r--r-- 2 vagrant supergroup 12 2015-02-05 15:50 > /outputmp/part-m-00000 > vagrant@hadoop-coc-1:~/Programs/hadoop$ hdfs dfs -ls > webhdfs://hadoop-coc-1/outputmp > Found 2 items > -rw-r--r-- 2 vagrant supergroup 0 2015-02-05 15:50 > webhdfs://hadoop-coc-1/outputmp/_SUCCESS > -rw-r--r-- 2 vagrant supergroup 12 2015-02-05 15:50 > webhdfs://hadoop-coc-1/outputmp/part-m-00000 > vagrant@hadoop-coc-1:~/Programs/hadoop$ > | > > >