dcoutadeur@linagora.com wrote:

Full_Name: dcoutadeur Version: 2.4.35 / git OS: openSuse 11.3 x86_64 URL: Submission from: (NULL) (80.67.162.201)

I apologize in advance if this is not considered as a bug, but I thought this ticket should help the community anyway...

The problem is that it seems impossible to add meta backend in cn=config thanks to ldapadd / ldapmodify clients. I thought the major interest for cn=config was precisely to let administrators change the configuration in a remote way, but maybe new database configuration is an exception ?

Seems we need some rework here to allow this case. Currently bconfig assumes that the olcDatabaseConfig entry is sufficient by itself, and any child entries underneath are just optional. It doesn't handle the case where the olcDatabaseConfig entry is basically an incomplete config.

Here are the technical elements :

Content of meta.ldif :

dn: olcDatabase={2}meta,cn=config objectClass: olcDatabaseConfig objectClass: olcMetaConfig olcDatabase: {2}meta olcSuffix: dc=foo,dc=com

debug information in slapd, after the command : ldapadd -H "ldap://localhost:389" -D "cn=config" -W -f meta.ldif

518220f1 conn=1002 op=1 ADD dn="olcDatabase={2}meta,cn=config" 518220f1 meta_back_db_open: no targets defined 518220f1 backend_startup_one (type=meta, suffix="dc=foo,dc=com"): bi_db_open failed! (1) 518220f1 olcSuffix: value #0: <olcSuffix> failed startup (dc=foo,dc=com)!

However, I can add this entry via slapadd :

dn: olcDatabase={2}meta,cn=config objectClass: olcDatabaseConfig objectClass: olcMetaConfig olcDatabase: {2}meta olcSuffix: dc=foo,dc=com olcAddContentAcl: FALSE olcLastMod: TRUE olcMaxDerefDepth: 15 olcReadOnly: FALSE olcSyncUseSubentry: FALSE olcMonitoring: FALSE olcDbOnErr: continue olcDbPseudoRootBindDefer: TRUE olcDbSingleConn: FALSE olcDbUseTemporaryConn: FALSE olcDbConnectionPoolMax: 16 olcDbBindTimeout: 100000 olcDbCancel: abandon olcDbChaseReferrals: FALSE olcDbNoRefs: FALSE olcDbNoUndefFilter: FALSE olcDbNretries: 10 olcDbProtocolVersion: 3 olcDbRebindAsUser: FALSE olcDbSessionTrackingRequest: FALSE olcDbTFSupport: no structuralObjectClass: olcMetaConfig entryUUID: cf8afa3a-a284-4ac8-b60e-9431b0807ed4 creatorsName: cn=config createTimestamp: 20130430162302Z entryCSN: 20130430162302.509672Z#000000#000#000000 modifiersName: cn=config modifyTimestamp: 20130430162302Z

The fact is I don't have a metatarget configuration, because this is a subentry of olcDatabase={2}meta,cn=config, thus I must add the latter entry first.

Also notice that I can't do a slapadd with just the meta configuration. (the ldif above). If I do this, I have an error : slapadd: could not add entry dn="olcDatabase={2}meta,cn=config" (line=1): autocreation of "olcDatabase={-1}frontend" failed

I had to make a backup of the full configuration, and then add the meta configuration and import the resulting file.