Error: Refresh DFS Children   

Hi guys.

First of all: Thanks for this plugin.

I have set up an hadoop-0.17.1. Now I want to use your plugin to create a MapReduce Job. The Eclipse I am using is version 3.4.0 und Windows XP. Unfortunatly, I have some other adjustments (besides trying the new Versions): All my hadoop processes listen do not listen on the standard ports. But I guess this doesnt matter as the plugin connects via ssh to the server where hadoop is installed, right? Thats the reason why I have to give to hostname, the installation directory and the username when creation a new Hadoop server location. Is this right so far?

After setting everything up and clicking on the server and opening the DFS, I get the error "Refresh DFS Children has encountered a problem." with the details:

"An internal error occurred during: "Refresh DFS Children".
org.eclipse.team.internal.ccvs.ssh2.CVSSSH2Plugin.getPreferenceStore()Lorg/eclipse/jface/preference/IPreferenceStore;"

Any suggestions on how to get this running?

Thanks so much, Robin

I also have the same problem.

Error Msg:
An internal error occurred during: "Launching WordCount.java on localhost Hadoop Server".
org.eclipse.team.internal.ccvs.ssh2.CVSSSH2Plugin.getPreferenceStore()Lorg/eclipse/jface/preference/IPreferenceStore;

I am using Ubuntu 7.10 and eclipse Version: 3.4.1.

I am 100% sure my local hadoop server is running because I can use the command line to run hadoop jobs, etc. I think I set up the the "MapReduce Servers" tab correctly. I just put the path where I plut the hadoop directory, hostname, and username.

After beating my head on this for a while and reading some previous threads, I finally got the hadoop plugin to work in eclipse. Here's what I did:

My setup:
ubuntu 7.10 (sorry windows users)
eclipse version 3.3
java-6-sun-1.6.0.03
hadoop-0.18.2

Installation:
1) Get correct version of the software listed above and install it. There are numerous sites on how to install hadoop on one machine.
old version of eclipse can http://archive.eclipse.org/eclipse/downloads/

2)Look for the hadoop-eclipse jar plugin file in the contrib dir directly under your hadoop installation directory and copy it to plugin dir of eclipse. Make sure eclipse is closed before doing this. I was lazy so I just copied the plugin into the plugin dir of eclipse.

Setup:
If you installed it correctly, you should be able to start the MapReduce perspective and Map/Reduce view. Both are under Window > Open Perspective and Show View respectively.

3)Click the blue elephant on the upper right corner of the Map/Reduce view. It'll bring up a configuration window.

4)Type in any name for the the Location Name. I just called it localhost cluster.

5)Set the port numbers for Map/Reduce Master and DFS Master. Look in your conf/hadoop-site.xml for "mapred.job.tracker" and "dfs.default.name" respectively. If not in that file, then it is probably in hadoop-default.xml or hadoop-env.xml.

6)Click "Advanced Parameters" tab and set the "mapred.job.tracker" parameter. For some reason it doesn't automatically change when you change it in the "General" tab.

7)User name should be whoever owns hadoop. For me, it is just m y login, others make a separate "hadoop" user for hadoop.

8)If you have done everything correctly, you should be able to click the triangles on the left to span the hierarchy view.