On 12/11/2017 01:46 PM, Aaron Hicks via FreeIPA-users wrote:
When the hosts behind the NAT process a job, it starts a burst of
activity and initiating a large number of LDAP connections (multiple
connections per host, about a hundred hosts)
That seems like a relatively small number of connections, well within
the default configuration's capabilities.
Performance tuning for the directory server for Linux is documented here:
http://directory.fedoraproject.org/docs/389ds/FAQ/performance-tuning.html
http://directory.fedoraproject.org/docs/389ds/howto/howto-systemd.html
(see the last section of this page)
...but be aware that some of these settings are already higher on
CentOS/RHEL 7 than the documentation suggests. Check the settings on
your system before making any changes so that you don't actually impose
a smaller limit than is currently in place.