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2.9ms
2024 Feb 03
2
Slow ldap membership query in large active directory
..."(&(objectclass=group)(member=CN=user.name,OU=Employees,OU=Users,OU=myou,DC=subdomain,DC=example,DC=de))"
gidNumber
# numResponses: 68
# numEntries: 67
real??? 0m0.378s
user??? 0m0.029s
sys??? 0m0.012s
When trying to get the gidNumber of all groups (courses) it only takes
around 249ms (-45ms bind/unbind overhead). So querying the gidNumber of
1280 groups is faster then querying the gidNumber of groups where the
user is a member:
# time ldapsearch -H ldaps://10.12.100.1:636 -D
"CN=Auth-User,CN=Users,DC=subdomain,DC=example,DC=de" -w xxxx -b
"OU=courses,OU=myou...