more modrdn problems (ITS#3267)

[ccontavalli@commedia.it]

Full_Name: Carlo Contavalli
Version: 2.2.14
OS: Debian GNU/Linux
URL: 
Submission from: (NULL) (213.140.17.96)


Ok, the application we are using relies on the openldap hdb backend,
and moves non-leaf branches under a different dn. The follwing output
is generated by slapcat >file.ldiff, slapadd -c < file.ldiff, which 
is run to generate a brand new db starting from a ldiff generated from
one of the slaves (ok, master crashed, db unrecoverable, removed db,
slapcat the db on one of the slaves kept in sync with slurpd, slapadd
the dump on the master). There's obviously something wrong...

slapadd: could not add entry
dn="cn=xxxx,cn=yyyyyyy.it,cn=cleaner,dc=zzzzz,dc=zzz" (line=83335): txn_aborted!
DB_KEYEXIST: Key/data pair already exists (-30996)
slapadd: could not add entry dn="cn=xdsx,cn=yyyydsy,cn=cleaner,dc=zzzzz,dc=zzz"
(line=146410): txn_aborted!
[...]
All the dn under cn=cleaner are here since they were moved here
(with modrdn, if I don't remember wrong) by the application. How come
I have duplicates in the slapcat output? How is this possible?
Additionally, I had the following errors, which I believe are related
to modrdn not checking the existance of parent node (and to the application
being broken - a bug I've already seen in the ITS):

Error, entries missing!
  entry 1041: account=xxxx,cn=yyyy,cn=cleaner,dc=zzzz,dc=zz
  entry 1052: account=xxxx,cn=yyyy,cn=cleaner,dc=zzzz,dc=zz
[...]