The problem description below is relevant for those who use samba + LDAP. We installed four Intel Xeon servers with standard SuSE 8.2, samba + ldap. The W2K client complained about very, very, very slow reponse from the server. Below is we descripe the reasons and the solution.
We have big problems with openldap version 2.1.12 (standard suse 8.2 rpm) and the name server cache daemon versiom 2.3.2 (standard suse 8.2 rpm). We installed 4 Intel servers (Intel server board, Intel Case, Adaptec 2100S Raid controller, Seaget cheetah disks, Xeon 2400, 1 GB RAM. We updated the BIOS, downloaded all updated RPM's, etc. LDAP is used for samba, postfix and courier-imap/pop3. The total configuration is working fine, except Openldap/NSCD. The problem was that a server locked after a while. When is not predictable, but more users caused the problem to be sooner. Further analyses learned that LDAP and NSCD were the problem. Problems became manifest after addding 3500 account to the LDAP directory. Server was not working reliable anymore, the W2K clients went home because of the malfunction of the server. This problem occurred on 4 locations with the same hard- and softwareconfiguration. After updating LDAP (removed rpm's and install of latest stable version of openldap) problems where not disappeared but less. It became then clear that nscd was also a problem. The daemon caused the problem: the processlist showed that several instances of nscd were running. But one of the daemons locked the system: it was not possible to fork a new process. Stopping the nscd caused a locked server to run inmediatly as it should and user were inmediatly able to work. On the four locations the nscd is now stopped for one week and there are no problems anymore. For us it is 100% evident that the nscd is a problem, because starting the daemon again, sooner or later the server will stop responding (no new processen possible). We also think that OpenLDAP 2.1.12 is also not working 100% reliable, Met vriendelijke groet/Regards, Prompt R.J. Baart Marktveldpassage 35c 5261 ED Vught Netherlands Mailto:[EMAIL PROTECTED] Http://WWW.Prompt.NL Tel.: +31 73 6567041 Fax.: +31 73 6573513 -- To unsubscribe from this list go to the following URL and read the instructions: http://lists.samba.org/mailman/listinfo/samba
