Many performance enhancements have been made to NameLookup to avoid the appearance of a hang when trying to do name lookups while views are being updated. To take advantage of these enhancements, the NameLookup Cache Version must be updated.
The default for this setting is NLCACHE_VERSION=2.
Set NLCACHE_VERSION=4 in the server's notes.ini.
This setting applies to Domino 7.0.3 and later.
The Domino server must be restarted after modifying this setting.
NameLookup performance fixes that address unnecessary updates
Domino Configuration Tuner:
This setting is included in the DCT
catalog of best practices.