What does @nodes contain right before you call scalar() on it? You don't check in main() to see whether or not it is empty. Do enable_unplanned_outage() and disable_unplanned_outage() check to see whether there is anything in the array they are passed?

Also, if you just get an arrayref from get_node and only use it to pass it on to other subs (besides your print warning), why dereference it? You might as well pass the arrayref to the next sub and only dereference it when you need to use it.

The way forward always starts with a minimal test.

In reply to Re^4: Returning more than two arrays to the subroutine by 1nickt
in thread Returning more than two arrays to the subroutine by shroh

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