set up Hadoop 0.19.2 on Eclipse 3.3.2 for Ubuntu 8.10

a. Refer to: http://ebiquity.umbc.edu/Tutorials/Hadoop/00%20-%20Intro.html

b. Download Eclipse 3.3.2 Europa: http://www.eclipse.org/downloads/packages/release/europa/winter

c. Download Hadoop 0.19.2: http://apache.osuosl.org//hadoop/core/hadoop-0.19.2/

Setup including the following hadoop-site.xml: http://hadoop.apache.org/common/docs/r0.19.2/quickstart.html#Local

<configuration>
<property>
<name>fs.default.name</name>
<value>hdfs://localhost:9000/<value>
</property>
<property>
<name>mapred.job.tracker</name>
<value>localhost:9001</value>
</property>
<property>
<name>dfs.replication</name>
<value>1</value>
</property>
</configuration>

d. cp [yourpath]/hadoop-0.19.2/contrib/eclipse-plugin/hadoop-0.19.2-eclipse-plugin.jar [yourpath]/eclipse/plugin/

e. start eclipse: Can start eclipse at "File Browser" of Ubuntu

f. Window > open perspective > other > map/reduce

g. In hadoop to start, open 5 terminals and type in the following respectively
~/apache/hadoop-0.19.2/bin/hadoop namenode -format
~/apache/hadoop-0.19.2/bin/hadoop namenode

~/apache/hadoop-0.19.2/bin/hadoop secondarynamenode
~/apache/hadoop-0.19.2/bin/hadoop jobtracker

~/apache/hadoop-0.19.2/bin/hadoop datanode
issue: if there is an error "Unexpected version of storage directory /tmp/hadoop-jongwook/dfs/data", remove "data" folder in the error

~/apache/hadoop-0.19.2/bin/hadoop tasktracker

h. At eclipse: http://ebiquity.umbc.edu/Tutorials/Hadoop/17%20-%20set%20up%20hadoop%20location%20in%20the%20eclipse.html
New hadoop location has the default value as follows as defined at hadoop-site.xml:
map/reduce master: localhost:9001
DFS mater: localhost:9000
user name: jongwook
mapred.job.tracker: localhost:9001

i. How to run Hadoop example at Eclipse
Refer to: http://dal-cloudcomputing.blogspot.com/2009/08/hadoop-example-mymaxtemperaturewithcomb.html
- Create (or import) Hadoop example as shown in the above blog as Hadoop project of Eclipse: File > New > Map/Reduce Project
- 1901 does not exist so that use only 1902
- open Hadoop project perspective view at Eclipse
- You can create DFS folder or upload files to DFS at this view