Installing hadoop issue -


i following joseph adler instructions on how install ( page 555 here - http:// it-e

books. info/book/1014/ ) hadoop on lubuntu.

i wrote in terminal:

wget http://archive.cloudera.com/cdh/3/hadoop-0.20.2-cdh3u4.tar.gz tar xvfz hadoop-0.20.2-cdh3u4.tar.gz

and went fine, .tar.gz file downloaded , untarred.

but when wrote

hadoop version

in terminal, there appeared message saying there no command hadoop.

does has idea on should use (already) installed (still) somehow invisible hadoop? help!

in linux invoking command without prefixing path requires location command resides should present environment variable path.

here, executing command got specify either absolute or relative path of command. following can used, replace extracted location. 

<extract_loc_path>/hadoop-0.20.2-cdh3u4/bin/hadoop version

if present working directory /hadoop-0.20.2-cdh3u4/bin/ ./hadoop version sufficient.


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