Re: demand slapindex after slapd.conf += index

[Howard Chu <hyc@symas.com>]

Hallvard B Furuseth wrote:
> A suggestion for a vain attempt to kill a FAQ:
>
> To teach people to run sbin/slapindex after adding an index to
> slapd.conf, slapd can refuse to start if an index file is missing but
> dn2id.bdb exists.  Same with other slap tools that need to open/create
> the index file.  (At least slapadd, I don't know if there are others.)

> slapindex and slapcat, at least, will need to keep working.

> If database recovery can sabotage this feature or vice versa, recovery
> will of course have to take precedence.

It may make sense for slapd, but it would require a fair bit of restructuring. 
Currently we don't create the index file until an attribute actually 
references it. So it's perfectly valid for an index file to be missing at 
startup time, just because no entries needed that index yet.

Also, this approach won't detect the problem case of the index definition for 
an already indexed attribute being changed. (E.g., adding presence to an 
attribute that already has an eq index.)
--
  -- Howard Chu
  CTO, Symas Corp.           http://www.symas.com
  Director, Highland Sun     http://highlandsun.com/hyc/
  Chief Architect, OpenLDAP  http://www.openldap.org/project/