For migrations between minor or major releases, 2.3->2.4 for example) that would be the correct procedure. For point releases it is almost never necessary. Exceptions being:
1) for BDB based backends, if the BDB major or minor version that OpenLDAP is linked to is different
2) early releases of slapd-mdb and current slapd-mdb, as there was an unavoidable db format change. I forget exactly when but I believe somewhere on the 2.4.2x releases.
Outside of that, a full reload is generally pointless, although it can reclaim unused space in the DB created by object deletions.
On Aug 15, 2015, at 2:01 PM, Mahmudul Hasan <email@example.com> wrote: