[Fedora-directory-users] lookthrough vs. sizelimit

George Holbert gholbert at broadcom.com
Wed Mar 14 22:24:04 UTC 2007


That clarifies it perfectly.
Thanks for the example!

Richard Megginson wrote:
> In general, lookthroughlimit is much stricter than sizelimit.
>
> For example, let's say a user wants to do an unindexed search for 
> (description=*something*).  Let's say that there are 5000 users and 
> 1000 users who have a description attribute that matches *something*.  
> The server will have to search through every entry in sequential 
> (indeterminate) order to find matches.
>
> If you set lookthroughlimit to be 1000, and set sizelimit to be 
> unlimited, the server will look at up to 1000 entries looking for 
> description=*something*.  Some of them may match, some of them may 
> not, and the server will return 1000 or fewer entries 
> (indeterminate).  The server is limited in the amount of work it 
> performs searching through the database.
>
> If you set sizelimit to be 1000, and set lookthroughlimit to be 
> unlimited, the server could look at all 5000 user entries, until it 
> finds 1000 entries which match, at which point it will terminate the 
> search and return the 1000 entries to the user.





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