Différences

Ci-dessous, les différences entre deux révisions de la page.

--- local:vmoodle:install [2018/02/21 22:28] – [Mise en oeuvre du cron virtualisé] admin
+++ local:vmoodle:install [2025/12/10 16:16] (Version actuelle) – modification externe 127.0.0.1
@@ Ligne 125: / Ligne 125: @@
    */10 * * * * wget -O /dev/null -q http://virtual1.mymoodles.edu
-then you can register as many ''wget'' calls pointing all your subdomains, as yo'll do for independant standard moodles. If you use the command line method
+then you can register as many ''wget'' calls pointing all your subdomains, as yo'll do for independant standard moodles. If you use the command line method you will have to run the VMoodle enabled cron script, and tell in the command line for which host you are running the script:
-Pour obtenir un basculement effectif de l'instance de service, utilisez à la place le script :
    /local/vmoodle/cli/cron.php --host=http://my_virtual.mymoodledomain.com
-en précisant explicitement la racine wwwroot que vous voulez adresser.
+You will provide the "official" wwwroot the virtual site is attached to.
-=== Utilisation de l'ordonnanceur de cron ===
+=== Using the VCron hyper rotator ===
-VMoodle fournit en plus un ordonnanceur de cron qui est lancé sur l'installation principale, et est capable de faire "tourner" automatiquement le déclenchement des crons virtuels de toutes les instances. Vous pouvez utiliser ce script en mode HTTP ou en mode script :
+The VMoodle implementation provides a vcron scheduler that will be lauched in the master moodle host context, and will automatically rotate and schedule all submoodle crons. VCron scheduler can operate using HTTP calls or command line execs (internally configured) and can itself be invoked through HTTP:
    wget http://main.mymoodledomain.com/local/vmoodle/vcron.php
-ou
+or in command line
    sudo -uwww-data php /root/to/moodle/local/vmoodle/cli/vcron.php
-La fréquence de rotation de l'ordonnanceur de cron doit être très rapide afin de permettre que chaque site virtuel soit activé suffisamment souvent.
+You may internally configure the vcron settings to raise the number of virtual moodle processed per cron run.
+the basic calculation for vcron rotation is :
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+With a "run per turn" of 1 and 20 virtual moodles and a cron period of 1 minute per turn, each vmoodle will be processed once per 20 minutes. Raising the "run per turn" to 2 will divided the effective cron period to 10 minutes per vmoodle instance.
+For very large moodle arrays, it may be worth having a separated machine to process the crons for all the moodle instances. Cron processes may ovelap one on each other, but will not pull down theusual user's page distribution too much.
+A very advanced feature (undocumented here) allow to distribute the vcron scheduling on several clusters.
+----
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