Hi, I have activated Referential Integrity plugin on my instance in order to move several OU to a new parent subtree. Also to update automatically uniqueMember attribute defined in group member . It works fine with few user entries under some OU but fails when the OU contains more than 400 entries or somtime more than 800. The error from the 389-console is : ou=UNITA, OU=Accounts,dc=mydomain,dc=com: netscape.ldap.LDAPException: error result (1); Operations error. In error file [20/Feb/2019:17:37:59.123749991 +0100] - ERR - ldbm_back_modrdn - SLAPI_PLUGIN_BE_TXN_POST_MODRDN_FN plugin returned error but did not set SLAPI_RESULT_CODE After this error the OU : UNITA, OU=Accounts,dc=mydomain,dc=com is not visible from 389-console . I have to restart the instance in order to recover the OU. Did i miss something in my configuration or do i have to set a specific parameter to support big entries ? My installation : 389DS 1.3.6 . _______________________________________________ 389-users mailing list -- 389-users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to 389-users-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://getfedora.org/code-of-conduct.html List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/389-users@xxxxxxxxxxxxxxxxxxxxxxx