CentOS - Jun 2011 - Strange issue's with LDAP and too many open files

Hi All,

I've been growing a large headache on this one, i have a number of LDAP
servers behind loadbalancing, since 2 days i constantly get the error: Too many
open files. Although I'm not a newbie with linux I'm unable to resolve
this, I have took the following stept:

Changed the /proc/sys/fs/file-max to 65535

Added the following configuration to /etc/security/limits.conf:

ldap             soft   nofile           65535
ldap             hard   nofile           65535
ldap             -      nofile           65535
# End of file

If I su to the ldap user where the process is running under:

[root at ldap5 ~]# su -m ldap
bash: /root/.bashrc: Permission denied
bash-3.2$ ulimit -H -n
65535
bash-3.2$ ulimit -S -n
65535

And still I get the error: Too many open files when open files are >1024.
I'm bazzled.

If anyone can provide me with some tips, please.

Cheers,
Sebastiaan.
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On Fri, 24 Jun 2011, Sebastiaan Koetsier | proserve wrote:
> I've been growing a large headache on this one, i have a number of LDAP
> servers behind loadbalancing, since 2 days i constantly get the error: 
> Too many open files. Although I'm not a newbie with linux I'm
unable to
> resolve this, I have took the following stept:
You need to specify nofile for ldap in the /etc/sysconfig/ldap file. For 
example, I have:

ULIMIT_SETTINGS="-n 16384"

Setting it for the ldap user in /etc/security/limits.conf will not have 
any effect, since it is root that starts the ldap server (so, the setting 
should be for root, not ldap).

Steve
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