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From "Emmanuel Lecharny (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (DIRSERVER-629) Improve performance for search requests
Date Fri, 25 Aug 2006 11:03:24 GMT
     [ http://issues.apache.org/jira/browse/DIRSERVER-629?page=all ]

Emmanuel Lecharny resolved DIRSERVER-629.
-----------------------------------------

    Resolution: Fixed

This has been fixed in may/june. Some more work could be done, but the search is now very
fast. I think that the number of searches we had was also limited by the naggle algorithm
wich was not disabled.

> Improve performance for search requests
> ---------------------------------------
>
>                 Key: DIRSERVER-629
>                 URL: http://issues.apache.org/jira/browse/DIRSERVER-629
>             Project: Directory ApacheDS
>          Issue Type: Improvement
>    Affects Versions: 1.0-RC3
>            Reporter: Emmanuel Lecharny
>            Priority: Critical
>             Fix For: 1.0-RC4
>
>         Attachments: apacheds-SEARCH.log
>
>
> Search requests are pathological long when the server is loaded with entries. I have
a server with 10000 entries, and I do a search for a random user. It takes around 50 ms to
find the user (20 searches per second, maximum).
> This is due to the fact that, when we have a lot of entries, the search look for entries
which DN are all parsed (cf attached log). The parser is synchronized and takes around 0,5
ms to parse a DN, and the entries to be parse are 100 (cf attached log again), so the 50 ms
are spent parsing, parsing and parsing ...

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