[Fedora-directory-users] temporary resource unavailable problem with fedora directory server

[Low Kian Seong]

Dear all,

I have installed fedora directory server version  :
fedora-ds-1.0.4-1.RHEL4. This ldap server integrates with postfix and
our radius server. My problem is when I check the access log I see
this error

.[18/Feb/2008:11:04:51 +0800] conn=72887 op=-1 fd=593 closed error 11
(Resource temporarily unavailable) - T1
[18/Feb/2008:11:04:54 +0800] conn=72898 op=-1 fd=666 closed error 11
(Resource temporarily unavailable) - T1
[18/Feb/2008:11:05:22 +0800] conn=72895 op=-1 fd=605 closed error 11
(Resource temporarily unavailable) - T1

occuring again and again very frequently. I have already tuned the
server according to the tuning guide on fedora directory server site.
This is my sysctl.conf :


# Kernel sysctl configuration file for Red Hat Linux
#
# For binary values, 0 is disabled, 1 is enabled.  See sysctl(8) and
# sysctl.conf(5) for more details.

# Controls IP packet forwarding
net.ipv4.ip_forward = 0

# Controls source route verification
net.ipv4.conf.default.rp_filter = 1

# Do not accept source routing
net.ipv4.conf.default.accept_source_route = 0

# Controls the System Request debugging functionality of the kernel
kernel.sysrq = 0

# Controls whether core dumps will append the PID to the core filename.
# Useful for debugging multi-threaded applications.
kernel.core_uses_pid = 1
net.ipv4.ip_local_port_range = 1024 65000
fs.file-max = 128000
net.ipv4.tcp_keepalive_time = 300

Am I missing something that I haven't done ?