On Tue, Apr 21, 2015 at 08:52:29PM +1000, Geoff Swan wrote: > > I have an ldap server that appears to slow down significantly even under > moderate load, and wondered if there were any suggestions as to where to > look. > > Using openldap-2.4.40 with mdb backend, on a dual Xeon (6 cores each) > server with 128GB ram. > Linux kernel 3.13, separate ext4 db volume (SAS). Slapd configured with > 48 threads. > > The problem appears that as soon as there are a handful of write > operations, slapd appears to stall. Binding to the ldap port takes many > seconds (instead of instant), and the slapd process appear to occupy > 100% of a single CPU core.
What does your config file look like? In particular, what does this setting look like for you: # Threads - four per CPU threads 8 -- Brian Reichert <reich...@numachi.com> BSD admin/developer at large