MapReduce Tutorial : Setting Eclipse

This is not well tested.

If you do not like VIM, you can try using Eclipse as a Java editor. You should

1. Download /SGE/HADOOP/active/hadoop-core-1.0.1-SNAPSHOT.jar
2. Download the directory /net/projects/hadoop/java-extensions/classes
3. Create a new Eclipse project that references the hadoop-core-1.0.1-SNAPSHOT.jar and includes all the files in /net/projects/hadoop/java-extensions/classes.
4. The jar file must be copied to the UFAL cluster to be executed. If you have to input your password for every ssh login, you can use connection sharing and input password only once – see Connection sharing.

• Download Eclipse project on shared file system

wget 'http://ufallab.ms.mff.cuni.cz/~majlis/eclipse-project.tar.gz'
tar -xzf eclipse-project.tar.gz

• Execute Eclipse (ufal-computer = gaia, osiris, mrblack, …)

ssh -X -Y ufal-computer.ms.mff.cuni.cz '/home/majlis/bin/eclipse'

• In Eclipse create new project (File > New > Java Project)
  • Select Create project from existing source and browse to location, where files were extracted.

• On your local computer execute the following commands:

wget 'http://ufallab.ms.mff.cuni.cz/~majlis/eclipse-project.tar.gz'
tar -xzf eclipse-project.tar.gz

• Execute Eclipse ( Applications > Programming > Eclipse 3.5.1 )
• In Eclipse create new project (File > New > Java Project)
  • Select Create project from existing source and browse to location, where files were extracted.

If you need to type password every time you login to UFAL network, you can use connection sharing to write it only once:

• execute ssh -N -M -S ~/.ssh/master-%l-%r@%h:%p geri.
• while the previous ssh is running, you can use ssh -S ~/.ssh/master-%l-%r@%h:%p geri to log in geri without password.