[HDFS-13858] RBF: Add check to have single valid argument to safemode command

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.2.0, 3.1.2
• Component/s: federation
• Labels: RBF
• Hadoop Flags: Reviewed
• Assignee: Ayush Saxena
• Reporter: Soumyapn
• Created: 23/Aug/18 08:44
• Updated: 28/Aug/18 04:16
• Resolved: 28/Aug/18 03:54

Description

Scenario:

Current behaviour for the dfsrouteradmin command is: First argument should be valid one. What ever value we give as the second argument, the command is successfull.

 

Examples:

hdfs dfsrouteradmin -safemode enter leave

hdfs dfsrouteradmin -safemode leave enter

hdfs dfsrouteradmin -safemode get jashfuesfhsk

hdfs dfsrouteradmin -safemode leave leave

 

With the above examples, command is successfull for the first argument.

 

Expected:

Add check to have single valid argument to the safemode command

 

 

Issue Links

• is related to: HDFS-13861 RBF: Illegal Router Admin command leads to printing usage for all commands