[NUTCH-1764] readdb to show command-line help if no action (-stats, -dump, etc.) given

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 1.8, 1.9
• Fix Version/s: 1.9
• Component/s: crawldb
• Assignee: Unassigned
• Reporter: Diaa
• Created: 25/Apr/14 11:43
• Updated: 11/May/14 15:36
• Resolved: 26/Apr/14 22:13

Description

If you run the command readdb with just one argument nothing happens and no usage warning is issued.
Example: bin/nutch readdb crawldb
Actual Result: Nothing happens
Expected Result: "Usage CrawlDbReader ... "

The issue is due to "if (args.length < 1) " which should be 2