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services

Listing off registered services (nova-scheduler, nova-compute and so on) and their current state. The updated_at field is used to determine if a given service is considered healthy or not.

“services” is a database table. If you don’t known what a database table is, think of it as a listing.

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  • My guess was: listing somewhere other than the registered services.
    – GEdgar
    Apr 2, 2016 at 1:28

2 Answers 2

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list someone or something off:

to recite a list of people or things, one by one.

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    It's still quite common that someone in the IT department will list off some selected details as a one-off paper report, so a front-office worker can trawl through the items sorting something out. Nov 24, 2011 at 17:16
  • I can attest to this being correct, too. It's commonly used in the UK.
    – Polynomial
    Nov 24, 2011 at 17:17
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It means that the writer misspelled “of” as “off”.

The asker is quoting a data dictionary.* The data dictionary lists the name of each field and what it contains. The field in question (the services field) contains a

Listing *off registered services (nova-scheduler, nova-compute and so on) and their current state.

This is awkward, and as soon the extra f is removed, the awkwardness is gone. The field then contains a

Listing of registered services (nova-scheduler, nova-compute and so on) and their current state.

Others have pointed out that to list off is a verb phrase meaning to recite from a list. This is quite true. But in this context a verb phrase makes no sense. In a description of what a field contains, you expect an object (a list), not a verb (to list).

Still, I suppose it is possible the author intended that the field contains the result when you list off, what you might describe as a listing-off. But then you need the hyphen, and you still need the word of to connect it to the rest of the sentence: the field contains a

Listing-off of registered services (nova-scheduler, nova-compute and so on) and their current state.

If the OP is still in doubt of what was intended I suggest contacting the author.


* The excerpt is taken from the O’Reilly nutshell handbook Deploying OpenStack.

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  • 3
    No it doesn't. I can list off numerous examples where 'off' is exactly what was meant. Nov 24, 2011 at 17:10
  • 1
    @FumbleFingers — I think it's clear from the context of the question that the phrase should be listing of. The description is not describing an action, it is describing a noun. Nov 25, 2011 at 20:30
  • It is extracted from Deploying OpenStack exactlty. BTW, What 'OP' stands for?
    – Liu
    Nov 26, 2011 at 11:53
  • OP means Original Poster -- the person who posted the question.
    – MetaEd
    Nov 26, 2011 at 15:25
  • I don't have the rest of the handbook, which might make things clearer, but from what OP has quoted, it seems equally possible the "heading" services could simply be followed by a list of actions. But it makes no difference to the meaning either way, and that's what was asked for. Nov 26, 2011 at 16:53

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