RC keywords question

[Brooks Davis]

On Mon, Dec 05, 2005 at 08:14:16PM +0300, Yar Tikhiy wrote:
> Just an additional remark:
> 
> In a system with complex interactions it can be hard to order rc.d
> scripts properly without help from services they start.  For instance,
> the database can REQURE "mail".  Then either the mail daemon should
> spool mail until dspam starts after the database, or dspam should
> start early and return a temporary failure condition to the mail
> daemon until it can connect to the database.  Similar considerations
> apply to other practical cases.

Loops are definitely something to be watched out for, but this one is
a somewhat poor example, IMO.  Looking at the "mail" scripts in the
base, it's clear that they are intended to provide the local delivery
agent.  If the particular mail system needs daemons running for local
mail submission to work, those daemons must start much earlier (probably
BEFORE: SERVERS).

-- Brooks

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