[DIRSERVER-2153] We don't have to update the RDN index up to the top when moving an entry

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 2.0.0-M21
• Fix Version/s: 2.0.0.AM27
• Component/s: backend, ldap
• Assignee: Unassigned
• Reporter: Emmanuel Lécharny
• Created: 08/Jun/16 12:10
• Updated: 19/Mar/20 18:35

Description

When we move an entry, we update all the ascendants up to the root, in order to update the number of descendants.

We can save us a few updates by stopping when we met the common ascendant, because it will have the same descendant number.

For instance, moving an entry from A/B/C/D/xxx to A/B/E/F/xxx will decrement the nbSubordinate counter for C and D, increment it for E and F, but for B, it will remain the same.

Doing so, in this very example, we would save 4 updates, dividing by 2 the number of updates.