Andras Piros commented on OOZIE-2634:

New output style for empty queue dumps is:

# bash-3.2$ bin/oozie admin -oozie http://localhost:11000/oozie -queuedump
[Server Queue Dump]:
The queue dump is empty, nothing to display.
[Server Uniqueness Map Dump]:
The uniqueness map dump is empty, nothing to display.

> Queue dump command message is confusing when the queue is empty
> ---------------------------------------------------------------
>                 Key: OOZIE-2634
>                 URL: https://issues.apache.org/jira/browse/OOZIE-2634
>             Project: Oozie
>          Issue Type: Improvement
>            Reporter: Robert Kanter
>            Assignee: Andras Piros
>            Priority: Minor
>              Labels: newbie
>             Fix For: 4.4.0
> If the callable queue is empty, and you run the queue dump command, the 
> message says:
> {noformat}
> # oozie admin queuedump
> [Server Queue Dump]:
> Queue dump is null!
> ******************************************
> [Server Uniqueness Map Dump]:
> Uniqueness dump is null!
> {noformat}
> This message makes it sound like a bad thing, especially the exclamation 
> mark.  We should change the message to something more neutral and helpful, 
> like "The queue is empty" or something like that.

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