The DNs for recyclebin objects get too large. It originally contained the original DN, then we changed to include the DN and UUID, so that if the same DN gets moved to recyclebin there is not conflict. The attribute names for the recyclebin are very large already: univentionRecycleBinOriginalDN univentionRecycleBinOriginalUniventionObjectIdentifier This causes MDB errors: ldap.OTHER: {'msgtype': 105, 'msgid': 3, 'result': 80, 'desc': 'Other (e.g., implementation specific) error', 'ctrls': []} slapd[28205]: => mdb_dn2id_add 0x3fb: "univentionRecycleBinOriginalDN=uid\3Dumc_test_user_xvju2bhb6t\2Ccn\3Dintermediate_test_container\2Ccn\3Dbase_test_container\2Cdc\3Dautotest092\2Cdc\3Daaaa+univentionRecycleBinOriginalUniventionObjectIdentifier=675f8041-87d9-4483-9c46-e558f9f58c7f,cn=recyclebin,cn=internal" slapd[28205]: <= mdb_dn2id_add 0x3fb: -30781 slapd[28205]: mdb_add: dn2id_add failed: MDB_BAD_VALSIZE: Unsupported size of key/DB name/data, or wrong DUPFIXED size (-30781) We will switch now to contain only univentionRecycleBinOriginalUniventionObjectIdentifier in the DN. This is still very long. It would be nice if the recylcebin wouldn't be a flat structure but also re-asseble the complete hierarchy. Then "univentionRecycleBinOriginalUniventionObjectIdentifier" is still very long. We should switch to a shorter attribute name. e.g.: univentionRecycleBinID +++ This bug was initially created as a clone of Bug #52202 +++