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Re: clarifications on cachesize, preferred db, et. al. from admin guide

Quanah Gibson-Mount wrote:
--On Tuesday, April 12, 2011 10:42 AM -0500 Tim Mooney
<Tim.Mooney@ndsu.edu>  wrote:

Check against OpenLDAP 2.4.25.  I believe nearly all backends and
overlays  support slapd-config now.

I'm using 2.4.25, but short of trying every one of the official and
contrib overlays one by one, I don't know of any way to find out which
ones don't support slapd-config.  That's why I was asking: I was hoping
someone knew what the holdouts were, or knew where it was documented.

I meant more, use the source.  From what I can tell, overlays with no
cn=config support are:


They also don't have manual pages, so probably aren't exactly supported

They have no config settings at all, therefore they work regardless of static or dynamic config. At this point it's more useful to ask "which don't work with dynamic config" than "which support dynamic config". There are several overlays that need no configuration.

Between that and the -devel note about backends, I think you can create a
complete list.

- Admin Guide, chapter 21.  The tuning chapter doesn't mention the
potential benefits of using sysv shared memory vs. mmap'ed files on
some platforms.  Should it?  Same offer for documentation patch applies,
though I expect this one will need more feedback from the experts.

Do you mean the shared memory keys, or something else?

The shared memory keys.

Definitely worth noting.  It is a requirement for Solaris if you want any
sort of decent performance.

Apparently it's become more important on recent Linux kernels too.

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