Hi guys,
I found very usefull every your answers, thanks to everybody.
W
Il 26/02/19 16:33, Eric Lemoine ha scritto:
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!
--
Walter Lorenzetti phD
email: lorenze...@gis3w.it
skype: aiki74
twitter:w_lorenzetti <https://twitter.com/w_lorenzetti>
g+:aiki74 <https://plus.google.com/117055903318462447104/>
Tel/Cell: (+39) 347-6597931
Viale Verdi 24 - 51016 Montecatini Terme (PT)
Nuovi corsi QGIS e GFOSS
<http://gis3w.it/it/calendario-corsi-software-geografici>
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