> Hi all, > > I'm not a sysadmin but for our customers I'd like find the better way > for deploy QGIS-server 3. > > I try at least 3 ways: > > 1) Apache2 + libapache2-mod-fcgid
There is Apache2 + mod_proxy_fcgi that you could use as well. As opposed to mod_fcgid, mod_proxy_fcgi requires that you use your own method for starting the FastCGI process(es) (QGIS Server here). In this regard mod_proxy_fcgi is very similar to NGINX-based setups. > 2) Nginx + fcgiwrap I recently added a note to the QGIS Server docs [0] that recommends against fcgiwrap. fcgiwrap is very slow, because it creates a new QGIS Server process on each request! [0] <https://docs.qgis.org/testing/en/docs/user_manual/working_with_ogc/server/getting_started.html#nginx> > > 3) Nginx + QGIS-Server working by socket/service (systemd) I like this one a lot, because it doesn't require anything else than systemd, which has become very very common on Linux distros. I even wrote a blog post about it :-) See [1]. [1] <https://oslandia.com/en/2018/11/23/deploying-qgis-server-with-systemd/> > > By delveloper side, what do you think is the best? As already said I like the systemd-only method because it doesn't require more than systemd, which you probably already have and use on your Linux system. spawn-fcgi works great as well, but you will need to use something like supervisord, or write a systemd system unit for it. > > I'd like to much 3) solution, but I found some problems, in > particular, how many sockects I've to create watching at my server? > (Number of processors ) I'd recommend using one QGIS Server process per processor, or even a few more for more parallelism during I/O operations. For example with 4 processors I think you can use 6-8 QGIS Server processes. > For 1) and 2) have you experiences on performance and tuning? Don't use 2 :-) I don't have much experience with 1 so I won't comment. But Patrick's suggestions sound very good to me :) One final note: at Oslandia we either use NGINX + systemd, or NGINX + spawn-fcgi when running QGIS Server in Docker container. If you want to use Docker I'd recommend taking a look at [2], which explains how we build and run QGIS Server using Docker. [2] <https://github.com/Oslandia/docker-qgis> Good luck! -- Éric Lemoine Oslandia +33 1 86 95 95 55
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