--On Wednesday, June 13, 2018 11:30 PM +0200 Saurabh Lahoti <saurabh.astronomy(a)gmail.com&gt; wrote: > Jun 11 23:01:37 musang kernel: Out of memory: Kill process 22184 (slapd) > score 888 or sacrifice child > Jun 11 23:01:37 musang kernel: Killed process 22184, UID 0, (slapd) > total-vm:52226320kB, anon-rss:37170216kB, file-rss:1044kB This is not slapd crashing. This is linux OOM deciding to kill slapd for you because your system ran out of memory, and slapd was the last thing to ask for more memory. The total memory requirements for slapd are not limited to just what's stored in the database. And, given that you're using back-bdb or back-hdb, the memory requirements are significantly higher than the size of the DB, as slapd has to have multiple caches (at least 3) to help overcome performance issues in BDB (dncache, idlcache, entrycache). Add more memory. Better, yet, ensure you are running the latest version of OpenLDAP and switch to back-mdb, which has significantly smaller memory requirements than back-bdb/hdb. --Quanah -- Quanah Gibson-Mount Product Architect Symas Corporation Packaged, certified, and supported LDAP solutions powered by OpenLDAP: <http://www.symas.com>