Thank you for the sudo rule suggestion and for detailed explanation! Just one more question, if I use MapCache as fcgi, does this mean that on every request the configuration will be read and parsed ? or the configuration will be kept in memory until a the fastcgi process killed and respawned ?
On Wed, Feb 22, 2012 at 12:37 PM, thomas bonfort <tbonf...@terriscope.fr>wrote: > On Wed, Feb 22, 2012 at 11:22, Pavel Iacovlev <iacovlev.pa...@gmail.com> > wrote: > > apache2ctl -k graceful is not really an option for me because I would > have > > to give root privileges to my apache/php. > you can create a sudo rule that only allows a user to run apache2ctl > -k graceful without giving full root access. > > > > > "AFAIK, this isn't possible." I don't know anything about apache modules > and > > stuff so the next thing I say may not be applicable or just plain stupid, > > but maybe each process will hold their own copy of configuration so the > > apache process will be able to alter it's configuration upon detection of > > file change. There is certainly that added overhead of "checking last > > modified date" and keeping more copies in memory, but this should not be > the > > default behavior. > > afaik, at the request level (which is were the freshness test would > occur), there's no way of freeing the memory that allocated the > initial configuration, and no way of allocating memory for the new > configuration that would live across the upcoming requests. > > > > > On Tue, Dec 6, 2011 at 1:00 PM, thomas bonfort <tbonf...@terriscope.fr> > > wrote: > >> > >> AFAIK, this isn't possible. Inside an apache module, the configuration > >> is considered read-only as it is shared between multiple worker > >> threads/processed spawned by httpd. > >> > >> apachectl configtest && apachectl graceful will restart the server > >> gracefully, i.e. without aborting ongoing requests, and will load the > >> new configuration for subsequent requests. > >> > >> -- > >> thomas > >> > >> On Mon, Dec 5, 2011 at 23:37, John Taranu > >> <jtar...@firstbasesolutions.com> wrote: > >> > Thomas, > >> > > >> > > >> > > >> > Is there a better way force MapCache to reload its configuration > script > >> > than > >> > restarting apache? I’m working on an application that will use two > >> > load-balanced web servers running MapCache, all pointing to a single > >> > central > >> > tile repository and a single central .xml configuration file. The > >> > configuration file will occasionally be edited, either with deletions > or > >> > additional tilesets. Both web servers need to reload the updated > >> > configuration .xml. > >> > > >> > > >> > > >> > Is it possible to set up MapCache to check if the config file was > >> > recently > >> > updated and, if so, reload the config .xml? It looks like this is > >> > currently > >> > enabled under FastCGI, but not under Apache. > >> > > >> > > >> > > >> > John > >> _______________________________________________ > >> mapserver-users mailing list > >> mapserver-users@lists.osgeo.org > >> http://lists.osgeo.org/mailman/listinfo/mapserver-users > > > > >
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