Hi Friends, 

                Very thanks to you for spending valuable time for me.

I had installed one single node cluster in psudo-distributed mode on linux(RHEL). i had executed one sample mapreduce program through hadoop commands.I got the output correctly. Please help me i want make new programs using eclipse IDE .how to make connection between them.i didn't find any hadoop-ecclipse plugin in contrib folder.please help me the…

Hi,

I wrote a map/red job and tested it in local eclipse. Then I deployed the map/red to the saver linux machine where the hadoop cluster runs by: making my map/red into a jar and collecting all the dependencies in a lib directory. So the deployment is very simple like this:

lib

<my map/red jar>

Now, at the command line I tried:

  hadoop jar <my map/red jar> <my map/red class> -libjars lib/<the dependency jar>

But…

Hi,

I'm totally new to hadoop admin. I recently set up a small hadoop cluster. The web map/red admin page shows something like:

172 Hadoop Map/Reduce Administration

I wonder if there a way to configure a codename for the cluster so that the admin page would show something like:

<the codename of the cluster> Map/Reduce Administration

Anyone knows how to (or not) do this?

Hi,

I recently built a small hadoop cluster (hadoop 1.0.0, 4 nodes), and had it run for a while. Then I stopped the cluster to modify the hadoop-env.sh file on all 4 nodes. Specifically I increased the heap size by uncomment

# export HADOOP_HEAPSIZE=2000

to

export HADOOP_HEAPSIZE=2000

When I restarted the cluster, the Hasoop Map/Reduce Administration page showed 0 nodes:

Hi All,this is Yerriswamy.I am beginner in  Hadoop.i am very happy to learn Hadoop.But i need some help from you.i want  to know how to start and what are the major concepts,it means the flow of learning Hadoop.pls help me.