On Wed, Jan 16, 2008 at 09:58:06PM +0100, Robert Felber wrote:
> On Wed, Jan 16, 2008 at 09:36:30PM +0100, Jan Wagner wrote:
> > On Wednesday 16 January 2008 20:47, Justin Piszcz wrote:
> > > Perhaps per-Robert,
> > >
> > > Make one for the cache, one for the daemon?
> > >
> > > e.g., when one 'stops' a daemon, shouldn't it kill all relevant processes
> > > it created?
> >
> > what if anybody comes to the idea to stop the cache via initscript, but
> > don't
> > stop the daemon? In this case it should be ensured, that the cache is
> > starting or is started, when the daemon starts. I guess thats most of the
> > users are confused by 2 init scripts and will not use it in the correct way.
> > For example stoping the cache while the daemon runs or things like that.
> >
> > I would prefer to echo a hint when stoping/restarting the daemon, how to
> > stop
> > the cache.
> >
> > Any invents?
>
> Well to avoid discussions about correctness I'd be okay if we say
>
> rc.d/policyd-weight stop|start|restart|dstop|drestart
>
> stop|start|restart - affects all (cache, daemon)
> dstop|drestart - affects only daemon
>
>
> In the end, everyone expects the cache to be killed, too.
> Those that have read an updated documentation know, that
> the daemon can also be stop/[re]started by just issuing
> /usr/sbin/policyd-weight stop|start or using the appropriate
> init params if they are used to manage everything via init scripts.
>
> I would count it as collateral damage if some users frequently purge
> the cache.
A 3rd option:
Upon termination the cache dumps its content to a file and re-reads
it on startup.
This would require new policyd-weight commands:
policyd-weight [-opts ...] purge ham
policyd-weight [-opts ...] purge spam
policyd-weight [-opts ...] purge all
policyd-weight [-opts ...] purge <key>
and also some disk-write/termination error-handling.
The -k switch could be removed
Pro: cache is fit also after reboot
cache is fit after an unthought rc.d/policyd-weight stop|start
Con: not sure whether doing this gracefully is as easy as it
sounds, dumping/reading takes some unpredictable time
--
Robert Felber (PGP: 896CF30B)
Munich, Germany
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