Thanks Diego, will use the copyToLocal. Sitaraman
On 12/29/13, Diego Gutierrez <diego.gutier...@ucsp.edu.pe> wrote: > Hi, > > For the first question, the name of the file containing the response of MR > process is like that: part-r-00000. This file is inside the output > directory. > > The second question, to locate the file in your linux file system you have > to go to your datanode directory. This directory path is in your > hdfs-site.xml file in {HADOOP_INSTALLATION}/etc/hadoop. In my case the full > path of the MR response file is: > /home/user/hadoop/data2.2/hdfs/datanode/current/BP-1422783414-127.0.1.1-1387647958374/current/finalized. > > where my datanode directory is: /home/user/hadoop/data2.2/hdfs/namenode. > > In the /finalized directory, there are files named like that: > blk_1073741836. In one of those files is the MR response file. This aproach > is not good if you want to open the response with vi for example, instead > you can copy the response file into your linux file system using > *copyToLocal* command( > https://hadoop.apache.org/docs/current2/hadoop-project-dist/hadoop-common/FileSystemShell.html#copyToLocal). > The syntax could be like that: bin/hadoop dfs -copyToLocal > /output/part-r-00000 /home/user/ > > Hope this help > > > 2013/12/28 Sitaraman Vilayannur <vrsitaramanietfli...@gmail.com> > >> Hi all, >> Thanks much for the pointers. I ran word count it appears, >> successfully. Currently in inspected the output like so, >> /usr/local/Software/hadoop-2.2.0/bin/hadoop fs -cat >> /user/sitaraman/output/* >> Java HotSpot(TM) 64-Bit Server VM warning: You have loaded library >> /usr/local/Software/hadoop-2.2.0/lib/native/libhadoop.so.1.0.0 which >> might have disabled stack guard. The VM will try to fix the stack >> guard now. >> It's highly recommended that you fix the library with 'execstack -c >> <libfile>', or link it with '-z noexecstack'. >> 13/12/28 15:13:06 WARN util.NativeCodeLoader: Unable to load >> native-hadoop library for your platform... using builtin-java classes >> where applicable >> as 2 >> do 1 >> do: 1 >> i 2 >> not 1 >> say 1 >> >> What is the name of the file in the output directory? Can i read it >> say using emacs or vi where will the directory /user/sitaraman/output >> be in the linux fs, that is how to locate where it is.... >> Thanks again for all the help. >> Sitaraman >> >> On 12/28/13, Hardik Pandya <smarty.ju...@gmail.com> wrote: >> > I recently blogged about it - hope it helps >> > >> > >> http://letsdobigdata.wordpress.com/2013/12/07/running-hadoop-mapreduce-application-from-eclipse-kepler/ >> > >> > Regards, >> > Hardik >> > >> > On Fri, Dec 27, 2013 at 6:53 AM, Sitaraman Vilayannur < >> > vrsitaramanietfli...@gmail.com> wrote: >> > >> >> Hi, >> >> Would much appreciate a pointer to a mapreduce tutorial which >> >> explains >> >> how i can run a simulated cluster of mapreduce nodes on a single PC >> >> and >> >> write a Java program with the MapReduce Paradigm. >> >> Thanks very much. >> >> Sitaraman >> >> >> > >> >