I moved over from hadoop-0.19.0 to 0.20.0 yesterday as i could not figure
out what exactly was going on. I have everything setup to work now 1
namenode + 2 datanodes. I am trying to speed up the retrieval of data from a
database using a perl script. The file consists of numbers and characters. A
I have started the cluster and inspite of that i dont get any of the
processes when i type ps. the only thing its showing is 2 java processes on
the name node.
im trying to do the word count example but this is what is happening:
[di...@gobi bin]$ ./hadoop fs -get /usr/divij/wordcount/input
I'm not convinced anything is wrong with the TaskTracker. Can you run jobs?
Does the pi example work? If not, what error does it give?
If you're trying to configure your SecondaryNameNode on a different host
than your NameNode, you'll need to do some configuration tweaking. I wrote a
blog post
