Re: ldapsearch performance degradation

["Dieter Kluenter" <dieter@dkluenter.de>]

Tim Dyce <tjdyce@unimelb.edu.au> writes:

> Hi all,
>
> I am trying to track down what causes ldap searches to slow down over
> time, especially if content is added and removed. We are having issues
> with this as a grid site in the EGEE/EGI computing grid.
>
> Attached is a graph of search performance over time, and a basic test I
> did to get it (runs from  /opt/bdii_test_core). This test only uses the
> core schema and operates on organizationalUnit.
>
> Can anyone tell me what's causing this?
> It's causing us some serious grief, as the searches slow down, some
> sites start to disappear off the grid and jobs start to fail.
>
> I've tried restarts and slap_index, but no love.
> Any help/advice would be much appreciated.

Is there any particular reason to increase the thread pool to 256?
Just stick to the default of 16, this will most likely increase
performance.

-Dieter

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Dieter Klünter | Systemberatung
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