RE: ITS#1679 gentle SIGHUP handling

["Howard Chu" <hyc@highlandsun.com>]

It occurs to me that entry caching could give you an old view of things but
I wouldn't expect it to be a major issue, most sessions are pretty short
lived as it is. For services that keep a single long-lived session open, it
would be useful to give them some kind of indication that they ought to
close and re-open the session. Not sure how that should work.

It may be a good idea to have the frontend return UNWILLING_TO_PERFORM on
all new update requests once a gentle shutdown has started. It still
wouldn't address the problem of long-lived read-only sessions though...

  -- Howard Chu
  Chief Architect, Symas Corp.       Director, Highland Sun
  http://www.symas.com               http://highlandsun.com/hyc
  Symas: Premier OpenSource Development and Support

> -----Original Message-----
> From: Kurt D. Zeilenga [mailto:Kurt@OpenLDAP.org]
> Sent: Wednesday, April 03, 2002 12:55 PM
> To: Howard Chu
> Cc: openldap-devel@OpenLDAP.org
> Subject: Re: ITS#1679 gentle SIGHUP handling
>
>
> At 12:19 PM 2002-04-03, Howard Chu wrote:
> >This sounds like an extremely good feature for reconfig
> restarts. Assuming
> >that back-bdb allows multiple processes to access a single database, this
> >should allow seamless restarts of slapd with no interruption of
> service. Has
> >anyone tried it?
>
> It should be okay to read the database while slapd/back-bdb
> is running.  That is, you should be able to do a on-the-fly
> backup.  However, I haven't tried this yet.
>
> However, you shouldn't write to the database while slapd/back-bdb
> is running as slapd/back-bdb.
>
> Kurt