On Fri, Mar 12, 2010 at 7:10 AM, Aaron Richton <richton@nbcs.rutgers.edu> wrote:

On Wed, 10 Mar 2010, Klemens Kittan wrote:

Mar 1 14:45:15 ldap1 slapd[25320]: warning: /etc/hosts.allow, line 19:
cannot open /etc/hosts.allow: Too many open files

cat /proc/sys/fs/file-max:
203609

cat /proc/<slapd pid>/limits:
Max open files 4096 4096 files

Sounds like you're mostly on the right track, but I didn't hear mention of compiling with a suitable OPENLDAP_FD_SETSIZE. Are your CPPFLAGS set accordingly?

Klemens,

Few weeks ago I had a similar issue, I found this thread very useful: http://www.sunmanagers.org/pipermail/summaries/2005-March/006226.html but at the end the issue seemed to come from avahi daemon. I'm not familiar with avahi but the config had:

[rlimits]
#rlimit-as=
rlimit-core=0
rlimit-data=4194304
rlimit-fsize=0
rlimit-nofile=30
rlimit-stack=4194304
rlimit-nproc=3

The machine restarted and started avahi(it was stopped before but not disabled) and when ldap started to get some connections I received the same output:
Feb 18 00:49:05 ldap01 slapd[3704]: warning: cannot open /etc/hosts.deny: Too many open files

Hope that helps.

--
Tony