Коновалов Андрей Александрович wrote:
Hello!
I have OpenLDAP 2.4.24 built with -enable-dynamic and --enable-modules options
So, dynamic modules support is on and my question is:
Why can i load module
(for example:
dn: cn=module{0},cn=config
changeType: modify
add: olcModuleLoad
olcModuleLoad: translucent.la
)
But when i'm trying to unload it (because it's not used at all), i cant do this
anywhere?
dn: cn=module{0},cn=config
changeType: modify
delete: olcModuleLoad
olcModuleLoad: {6}translucent.la
# the same with simply olcModuleLoad: translucent.la
modifying entry "cn=module{0},cn=config"
ldap_modify: Other (e.g., implementation specific) error (80)
additional info: cannot delete olcModuleLoad
If it is not realised yet, you may consume my question as a feature request :)
Many reasons. First because there simply hasn't been a need. Second because
many platforms that OpenLDAP supports don't actually support unloading of
dynamic modules. (E.g., on AIX 3, unloading a module is "supported" but
doesn't in fact free up any of the memory, that part of the address space is
gone. Unloading and reloading over and over eventually eats up all the address
space.)
There are some isolated cases where it might be useful, but they're relatively
rare. E.g., unloading a module so that a one-line patch can be applied, and
then reloading it. In the more common case, since the slapd APIs are not
frozen, you can't rely on unloading and mixing versions of modules.
--
-- Howard Chu
CTO, Symas Corp. http://www.symas.com
Director, Highland Sun http://highlandsun.com/hyc/
Chief Architect, OpenLDAP http://www.openldap.org/project/