is there a sizelimit to groupOfNames?

[Jan-Michael Ong <jmong@adobe.com>]

Hello --

I recently sent out an e-mail to this list subject?"missing group" today 
and so far I managed to test out a few things.

The group has about 3700 members (and potentially rising). We are using 
OpenLDAP-2.0.11, db-3.2.9 and I notice that there were some articles flying 
around, most notably

http://www.openldap.org/lists/openldap-bugs/200107/msg00054.html

that mentioned that there might be a potential bug. Is this the case am I 
hitting some sort of upper limit for groupOfNames?

Again the group begins as:
dn: cn=ASNsp, ou=SubGroup,ou=Group1,o=MyDomain
objectclass: top
objectclass: groupOfNames
cn: ASNsp
member: uid=138@fastsigns.com,ou=Test,ou=TestGroups,o=MyDomain
[ ... snip ...]

When I try to add the group via ldapadd, it attempts to add it to the LDAP 
db but towards the end (I do -d 256), it says "Can't contact LDAP server" 
even though slapd is on and receiving connections (I also monitor the 
logs). What's interesting however is when I reduce the number of members 
from 3700 to some number say (1500), it works and the whole group is added.

I am under the impression that the group size could be at least more than 
3700? Could someone please tell me where else I can look to figure out 
what's happening?

Here's slapd.conf dbase definition

database        ldbm
cachesize       1000000
dbcachesize     10000000
dbnolocking
dbnosync
directory       /ldapdb
suffix          "o=MyDomain"
rootdn          "cn=DirectoryManager,o=MyDomain"
rootpw          secret


Thanks in advance.