[HADOOP-3151] Hod should have better error messages.

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.16.3
• Fix Version/s: 0.18.0
• Component/s: contrib/hod
• Hadoop Flags: Reviewed
• Assignee: Vinod Kumar Vavilapalli
• Reporter: Arkady Borkovsky
• Created: 01/Apr/08 21:10
• Updated: 22/Aug/08 19:50
• Resolved: 04/Jun/08 12:53

Description

(1)
gsgw1037:/homes/arkady/CDSR> hod allocate -n 4 -d xx
error: bin/hod failed to start.
error: invalid 'clusterdir' specified in section hod (--hod.clusterdir): xx
error: 1 problem found.
Check your command line options and/or your configuration file /grid/0/kryptonite/hod/conf/hodrc

• Directory 'xx' does not exist - the message shuold say "Non-existing directory" (or "directory not found"), not "invalid"
• checking the configuration file will not help, the advice is confusing
• checking the command line options is the obvious thing to do – the advise is unnecessary.

(2) when hod does not understand the command, it prints the whole help options message – which clobbers the screen and is confusing. It should give a meaningful message – and may say "type hod help for more info"