mdb_equality_candidates: (uniqueMember) not indexed

[DimitriPapadopoulos]

The LDAP service writes error messages in the system log /var/log/syslog :

mdb_equality_candidates: (uniqueMember) not indexed

[DimitriPapadopoulos]

See for example Eliminating openldap '(uid) not indexed' errors. This happens whenever LDAP searches a non-indexed attribute. Here is the current indexing on the project server:

# /usr/sbin/slapcat -n 0 | grep olcDbIndex
olcDbIndex: objectClass eq
olcDbIndex: cn,uid eq
olcDbIndex: uidNumber,gidNumber eq
olcDbIndex: member,memberUid eq
# 

[DimitriPapadopoulos]

Create an LDIF file to change the indexing attributes:

dn: olcDatabase={1}mdb,cn=config
changetype: modify
add: olcDbIndex
olcDbIndex: uniqueMember eq

[DimitriPapadopoulos]

Apply the LDIF file:

# ldapadd -Y EXTERNAL -H ldapi:/// -f index.ldif
SASL/EXTERNAL authentication started
SASL username: gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth
SASL SSF: 0
modifying entry "olcDatabase={1}mdb,cn=config"

# 

[DimitriPapadopoulos]

Here is the new indexing on the project server:

# /usr/sbin/slapcat -n 0 | grep olcDbIndex
olcDbIndex: objectClass eq
olcDbIndex: cn,uid eq
olcDbIndex: uidNumber,gidNumber eq
olcDbIndex: member,memberUid eq
olcDbIndex: uniqueMember eq
#  

[DimitriPapadopoulos]

Seems to have fixed this issue.