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From "Emmanuel Lecharny (JIRA)" <>
Subject [jira] Updated: (DIRSERVER-1051) Avoid a lookup in CollectiveAttributeService
Date Fri, 21 Sep 2007 21:52:51 GMT


Emmanuel Lecharny updated DIRSERVER-1051:

    Fix Version/s:     (was: 1.5.2)

Moved to 2.0, because for a complete fix, it is necessary to modify the Partition subsystem

> Avoid a lookup in CollectiveAttributeService
> --------------------------------------------
>                 Key: DIRSERVER-1051
>                 URL:
>             Project: Directory ApacheDS
>          Issue Type: Improvement
>    Affects Versions: 1.5.1
>            Reporter: Emmanuel Lecharny
>             Fix For: 2.0.0
> To process collectiveAttributes, the service does a lookup searcing for the "collectiveAttributeSubentries"
operational attribute. This lookup cost around 17% of the global search time, and can be avoided,
as we can add this attribute to the list of returned attribute in the original lookup, instead
of doing a specific lookup for this attribute.
> We have two cases :
> - the "collectiveAttributeSubentries" does not exist : net gain will be 17%
> - the "collectiveAttributeSubentries" exists : we will have to remove it from the entry
and process the collective attributes to add them to the entry. The gain will still be enormous
(less than 17%, but very close)
> In the second case, we will just have to be sure to return this attrinute to the user
who has specifically requested it into the original search request.
> The gain will be major.

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