[HADOOP-2861] [HOD] Improve the user interface for the HOD commands

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.16.0
• Fix Version/s: 0.16.1
• Component/s: contrib/hod
• Assignee: Vinod Kumar Vavilapalli
• Reporter: Hemanth Yamijala
• Created: 20/Feb/08 16:59
• Updated: 14/Mar/08 18:31
• Resolved: 04/Mar/08 23:15

Description

The current command line for HOD is not user-friendly or conventional. Following improvements are required:

• We shouldn't require the quotes around the operation.
• Can we define a HOD_CLUSTER_DIR environment variable which would be used by default ?

With these two, one can imagine a very simple command line for HOD. Something like:

hod-allocate 3
hod-deallocate

hod-allocate 3 ~/hod-clusters/test
hod-deallocate ~/hod-clusters/test

This would also be backward compatible for people who're used to the current model.