Full_Name: Fabio Ubaldi Version: 2.3.27 OS: Linux kernel 2.6.18 URL: Submission from: (NULL) (194.237.142.11)

Hi all, I have two processes running on the same PC that receive data from an LDAP server. Each process opens a connection with a different "slapd" server (i.e each server runs on a different PC) and launches "search" requests at a fixed rate (about 100 searches/s). Each process creates a thread that polls the server responses using the API "ldap_result" the used macro are LDAP_RES_ANY and LDAP_MSG_ONE.

When the two processes send the requestes one of the two "ldap_result" return with error (-1) and the error is "Can't contact the LDAP server". I tried to launch one processes and it works fine (the maximum measured rate is 800 searches/s). Also I launch the two processes alternating the search requestes and it works fine.

It seems that the error happens only if the two process runs simultaneously (I use a dual core PC). Thinking of a race condition error , I used the libldap_r library to build process, but the error still remains.

The openldap version is 2.3.27 both for slapd servers and the libraries.

Have anyone encountered a similar error ?

Thanks in advance for the reply