Re: OpenLDAP + 300 CPUs

[Jean-Francois Bouchard <jean-francois.bouchard@idilia.com>]

Hi Robert,

Thanks for the response.

Some day I have tried :

ulimit -n (file handle) 65535

But at this point, socket become a problem. And I think for that we need
to recompile the package with FS_SET_SIZE modified.


I am right ?

Thanks.

 

Robert Petkus wrote:
> On linux you can do something like this to /etc/security/limits and
> restart ldap:
> ldap           soft    nofile          32768
> ldap           hard    nofile          65525
>
> Robert
>
>
>
> Jean-Francois Bouchard wrote:
>> Hello
>>
>> I have an interesting issue here.
>>
>> We are operating a grid ( http://en.wikipedia.org/wiki/Grid_computing )
>> composed of a bit more than 300 CPUs.
>>
>> We have a standalone machine that take care of our LDAP server. Right
>> now this machine run the LDAP server with a idletimeout set.
>>
>> When a use submit a bunch of job (Lets say 10 000 jobs) each job
>> generate a query to the LDAP machine. What happen ? The only process
>> stop accepting connection due to the FD size limit (1024 connections).
>> Even with a idletimeout connection set at 2 second...
>>
>> What choice we have to let our LDAP machine do more ...
>>
>> We like to know if openLDAP can do like apache (fork a process for each
>> connection, or a process for a small bunch of connection.)
>>
>>
>> Thanks
>>
>> ---
>> Jean-Francois Bouchard
>>
>>   
>
>