Re: [ldap] Implementation Suggestions

[Quanah Gibson-Mount <quanah@stanford.edu>]

--On Friday, January 20, 2006 3:23 PM -0500 Daniel Henninger 
<daniel@ncsu.edu> wrote:

> > I'm no expert, but I do run on Solaris (9), a couple of things I can
> > think of...
> >
> > It may be worth adding the noatime flag to the filesystems that hold
> > data and (bdb) logs.  You are indexing a lot of attributes, do you
> > need
>
> No atime?  That's interesting.  I've never heard of that, what does  that
> do?  As for the BDB logs, is it a reasonable thing to think  "this is
> totally read only and if i lose the data, I regenerate  it . . . that
> means I don't really need BDB's transaction logs"?  I  didn't see how to
> turn them off exactly, but I don't know that I need  them given that I'd
> sooner regen everything than I would attempt to  get BDB to roll back.

No, that is not reasonable.  The BDB transaction logs are required (hence 
the inability to prevent their generation).  In the case of a core dump, 
for example, they will be necessary to recover the database environment 
when slapd is restarted.

I note that your slapd.conf is also missing a:

checkpoint

directive, which is somewhat essential as well.  checkpointing in 2.2 only 
occurs after the specified intervals have passed AND another write comes 
in.  In 2.3, checkpointing occurs after the specified intervals.  Another 
reason to investigate upgrading.  Having the checkpointing in place will 
also help slapd shutdown times, and help ensure little to no data is lost 
in the event of an unclean shutdown.

--Quanah


--
Quanah Gibson-Mount
Principal Software Developer
ITSS/Shared Services
Stanford University
GnuPG Public Key: http://www.stanford.edu/~quanah/pgp.html