https://bugs.openldap.org/show_bug.cgi?id=10088
Issue ID: 10088
Summary: "DN index add failed" when renaming an entry
Product: OpenLDAP
Version: 2.5.13
Hardware: All
OS: All
Status: UNCONFIRMED
Keywords: needs_review
Severity: normal
Priority: ---
Component: backends
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
I recently updated a Docker image to the latest Debian release, which means I
got a new OpenLDAP version: 2.5.13 (not sure what it was before, but definitely
<=2.4.x). The old image's backend was HDB. That disappeared, so I made
changes(1) to use the default MDB store. Today I found out that one of my tests
is failing against this new image with a "DN index add failed" message. I
traced the message down to (2), but I don't understand what is causing the
message to be generated and cannot find any documentation on the function that
returned the error.
Basically, the test is renaming an entry to a very long name. This script shows
the error:
```sh
#!/usr/bin/env bash
set -e
function cleanup() {
echo "Stopping server..."
docker stop ldap-test 2>&1 1>/dev/null
}
trap cleanup EXIT
echo "Starting server..."
docker run --rm -d \
-p 1389:389 -p 1636:636 \
--name ldap-test \
ghcr.io/ldapjs/docker-test-openldap/openldap:2023-07-25 2>&1 1>/dev/null
echo "Waiting for server to start..."
sleep 3
echo "Renaming entry..."
docker exec ldap-test \
ldapmodrdn -x -H ldapi:/// \
-D 'cn=admin,dc=planetexpress,dc=com' \
-w 'GoodNewsEveryone' \
-v -d 2 \
'cn=Turanga Leela,ou=people,dc=planetexpress,dc=com' \
'cn=a292979f2c86d513d48bbb9786b564b3c5228146e5ba46f404724e322544a7304a2b1049168803a5485e2d57a544c6a0d860af91330acb77e5907a9e601ad1227e80e0dc50abe963b47a004f2c90f570450d0e920d15436fdc771e3bdac0487a9735473ed3a79361d1778d7e53a7fb0e5f01f97a75ef05837d1d5496fc86968ff47fcb64'
```
What changes do I need to make in order to solve this error? I have tried
applying the following ldif to my image creation, but it does not solve the
problem:
```ldif
dn: cn=config
changetype: modify
replace: oldIndexHash64
olcIndexHash64: TRUE
```
1: https://github.com/ldapjs/docker-test-openldap/pull/3/files
2:
https://git.openldap.org/openldap/openldap/-/blob/2738a32de3a324fc56effd44c2fedaff1a359011/servers/slapd/back-mdb/modrdn.c#L442
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