Re: Questions about lastmod overlay

[Howard Chu <hyc@symas.com>]

Rob Tanner wrote:
> Hi,
>
> I want to get last modified timestamps, etc, on individual entries in
> OpenLDAP just as I get them in my about to be retired Netscape server. 
> But I noticed that that lastmod overlay is not built by default when you
> compile from source (one needs to include the "--enable-lastmod" when
> running configure).  And so, of course, my current binary doesn't
> support that function.  Is there a downside to using the lastmod
> overlay?   Can I just recompile and reinstall and not have to actually
> rebuild the database, or do I have to dump the database and reload it again?

I don't think the lastmod overlay does what you think it does. That 
overlay records the last modification made to any entry in the database, 
onto an attribute on the root entry of the database. Also, there's an 
outstanding ITS against this overlay, so it is apparently broken at the 
moment.

OpenLDAP already records the last modified timestamp on individual 
entries; it's in the "modifyTimestamp" operational attribute.

--
  -- Howard Chu
  Chief Architect, Symas Corp.  http://www.symas.com
  Director, Highland Sun        http://highlandsun.com/hyc
  OpenLDAP Core Team            http://www.openldap.org/project/