[jira] [Created] (DIRSERVER-1907) [perf] Add a replace() method in the index interface

["Emmanuel Lecharny (JIRA)" <ji...@apache.org>]

Emmanuel Lecharny created DIRSERVER-1907:
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             Summary: [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
    Affects Versions: 2.0.0-M15
            Reporter: Emmanuel Lecharny
             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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