Search() returns partial results only

[martinmueller4voice]

I was trying to retrieve the list of all groups from a large AD and noticed some groups were missing.

At first I thought the filter was wrong, but using the exact same (objectClass=group) filter in the AD users and groups mmc plugin returned all >20.000 groups in this huge AD.

Since I don't have access to this AD anymore, I can't reproduce the effect - my AD is much smaller and I get all the ~ 120 groups there.

I could not find a connection between the groups that were returned and those that weren't, so I assume there could be some restriction on the result set size.
Unfortunately, I didn't get any error in my application while trying to get all those groups.
Further tests showed that there in fact is a LdapSizeLimitExceededException being thrown if I get all the objects in my AD (about 880), but with that huge AD getting all the groups didn't raise any error.

Environment

• OS: Windows Server
• Library version 2.7.10
• .NET core 3.1
• LDAP server Active Directory

[flamencist]

Hi! Please use pagination control for huge searches