Where is share/hadoop/mapreduce/hadoop-mapreduce-examples-2.6.4.jar located?

jacktauson123 · 04-13-2016, 06:48 PM

I am referring to the following [doc][1] and I am currently on `Standalone Operation` step. They have mentioned to run the following commands:

Code:

 $ mkdir input
      $ cp etc/hadoop/*.xml input
      $ bin/hadoop jar share/hadoop/mapreduce/hadoop-mapreduce-examples-2.7.2.jar grep input output 'dfs[a-z.]+'
      $ cat output/*

The directories in my terminal looks like the following:

Code:

 [root@localhost local]# ls
    bin  games   hadoop-2.6.4.tar.gz  input        lib    libexec  share
    etc  hadoop  include              jdk1.8.0_77  lib64  sbin     src
    [root@localhost local]# cd hadoop
    [root@localhost hadoop]# ls
    bin  etc  include  lib  libexec  LICENSE.txt  NOTICE.txt  README.txt  sbin  share
    [root@localhost hadoop]# cd bin
    [root@localhost bin]# ls
    container-executor  hadoop.cmd  hdfs.cmd  mapred.cmd  test-container-executor  yarn.cmd
    hadoop              hdfs        mapred    rcc         yarn
    [root@localhost bin]#

I couldn't see anything close to

Code:

`share/hadoop/mapreduce/hadoop-mapreduce-examples-2.7.2.jar`

after going into `bin` directory. I was expecting to see

Code:

`share/hadoop/mapreduce/hadoop-mapreduce-examples-2.6.4.jar`

since my version is different.

Could anyone explain me the meaning of that step and why I don't see anything like that?

[1]: https://hadoop.apache.org/docs/stabl...leCluster.html

syg00 · 04-13-2016, 07:44 PM

I would expect it to be in the highest level "share" directory. Go back up to "local" and look at the "share" there. Else try this (from "local")

Code:

find -iname hadoop-mapreduce-examples-*.jar 2>/dev/null

That shoud find them all if there is more than one. The bit at the end is just to get rid of error messages.