https://bugs.openldap.org/show_bug.cgi?id=10614
--- Comment #1 from Peter Dyballa Peter_Dyballa@Web.DE --- On that Mac with macOS High Sierra, Version 10.13.6 or Darwin 17.7.0, the same failure happens with OpenLDAP 2.6.15:
Waiting 7 seconds for servers to resync... Using ldapsearch to read all the entries from server 1... Using ldapsearch to read all the entries from server 2... Using ldapsearch to read all the entries from server 3... Using ldapsearch to read all the entries from server 4... Comparing retrieved entries from server 1 and server 2... test failed - server 1 and server 2 databases differ
00:10:24 Failed test050-syncrepl-multiprovider for mdb after 111 seconds
(exit 1) make[2]: *** [mdb-yes] Error 1 make[1]: *** [test] Error 2 make: *** [test] Error 2 Command failed: cd "/opt/local/var/macports/build/openldap-be6d492f/work/openldap-2.6.15" && /usr/bin/make check