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https://issues.apache.org/jira/browse/DIRSERVER-1907?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Emmanuel Lecharny updated DIRSERVER-1907:
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Component/s: backend
> [perf] Add a replace() method in the index interface
> ----------------------------------------------------
>
> Key: DIRSERVER-1907
> URL: https://issues.apache.org/jira/browse/DIRSERVER-1907
> Project: Directory ApacheDS
> Issue Type: Improvement
> Components: backend
> Affects Versions: 2.0.0-M15
> Reporter: Emmanuel Lecharny
> Priority: Major
> Fix For: 2.0.0
>
>
> Currently, when we update the Rdn index, we update it many times (one time
> per RDN in the entry's DN), and we store a new version of each RDN with an
> updated count of children and descendant.
> This is done by dropping and adding each RDN, as we don't have a replace
> method. This is extermelly costly, and we can save a lot of CPU with such a
> replace method (the RDN index update cost one third of the global cost of an
> addition, we could save around half of this, so this would give us a 16%
> speed improvement for updates.)
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