FAQ
Hey guys,

I am new user of hadoop.
I am writing a mapreduce query on a relatively huge file (3 Gb). First I had
a single node hadoop installed which took approx 200 seconds.
Now I installed hadoop cluster on 10 machines and tried to use the same
query. It took nearly 230 seconds this time.

The query Im using to insert data into hdfs is -

hadoop dfs -put *.dat /data/

How to check weather the file is distributed among the 10 machines? And how
to distribute the file amongst the datanodes to make it faster?

--
^

Search Discussions

Related Discussions

Discussion Navigation
viewthread | post
Discussion Overview
groupcommon-user @
categorieshadoop
postedApr 10, '10 at 3:40a
activeApr 10, '10 at 3:40a
posts1
users1
websitehadoop.apache.org...
irc#hadoop

1 user in discussion

Null Ecksor: 1 post

People

Translate

site design / logo © 2022 Grokbase