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From Emmanuel Lécharny <>
Subject Re: Getting total count of entries in a container
Date Thu, 11 Dec 2014 09:42:13 GMT
Le 11/12/14 09:34, Michael Ströder a écrit :
> Emmanuel Lécharny wrote:
>> Le 11/12/14 05:32, amit nanda a écrit :
>>> I would like to  get the total count of entries under a container.
>>> I application will have around 100000 entries, i can't get a direct way to
>>> to this.
>> Plain normal.
> In web2ldap I'm using various mechanisms for e.g. getting the number of
> entries in a sub-tree.
> No-op search control
> Search and sum up server-specific operational attributes like:
> - subordinateCount
> - numSubordinates
> - numAllSubordinates
> - msDS-Approx-Immed-Subordinates

That's really very server dependent.

>> "In the control returned to the client, the size MAY be set to the
>> server's estimate of the total number of entries in the entire result
>> set. Servers that cannot provide such an estimate MAY set this size to
>> zero (0)."
>> (RFC 2696).
> Interesting. I will check whether MS AD returns it.

I'm not sure OpenLDAP returns it. We don't.
>> Side remark : it would be quite interesting to be able to provide such a
>> *real* number of entries that would be returned, without actually
>> returning any of those entries. The work would be done on the server,
>> and returned as a control.
> How about also implementing No-op search control?

Yes, that's an idea. Do we have any spec for that control ?
> In web2ldap I'm using it to display number of entries returned by a search,
> number of entries affected by bulk modify/delete operations. I've extensively
> tested it with OpenLDAP's slapo-noopsrch.
> However there's no I-D yet.
Ah, too bad...


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