Salles d'attente polyvalentes

Throughout our documentation we refer to ‘catch-all’ Waiting Rooms. This is simply shorthand for a room that matches all URLs on a given domain. It's the default setting for new Waiting Rooms but you can set a room to catch-all status by editing the room and setting URL match to ‘all of <your domain>’.

Catch-all Waiting Rooms are intended to monitor all incoming traffic and be the last line of resort in the case of traffic to your domain exceeding your Ingress Rate. They can be an important safety-net. However, they are also something of a special case, and have some different characteristics to waiting rooms that are more selective on the URLs they match. It may be important to understand these differences if you need to schedule multiple overlapping Waiting Rooms.

Double promotion#

Imaginons que vous organisiez actuellement la vente de billets pour un grand concert. Vous enregistrez un faible trafic de fond, avec des utilisateurs réguliers qui consultent leur compte, et un afflux important de fans inconditionnels qui attendent des billets pour un spectacle précis. Vous souhaitez que le trafic de fond soit géré par votre « salle d’attente » générale, mais sans qu’il ne vienne encombrer la « salle d’attente » dédiée à ce spectacle. Mais que se passe-t-il lorsque vos fans inconditionnels sont admis depuis la « salle d’attente » du concert ? S’ils vont tous consulter leur compte, vous ne ferez que créer un deuxième pic de trafic dans la « salle d’attente » générale, une deuxième file d’attente et beaucoup de fans mécontents.

To avoid this scenario, catch-all rooms have a special property. When a user is promoted in any specific waiting room on your domain, CrowdHandler automatically and simultaneously gives them promoted status in any catch-all rooms on the same domain. The same is not true for other Waiting Rooms. There's no way we'll allow users to get through a queue for an unpopular act, and achieve promoted status for the much more popular act that everyone else is queuing for.

Can I have more than one catch-all on a domain? And why would I do that?#

You can, but incoming users will only get attached to one, the one with the most recent activation date. Why might you want to do that? Maybe you have a regular catch-all Waiting Room set up how you like it, but you're about to start some planned maintenance on your website. Rather than changing the message on your existing catch-all, you could pre-schedule a catch-all Waiting Room to coincide with your maintenance window, with appropriate messaging, etc., and an ingress rate of 0. At the appointed time, new users will move into the new maintenance window catch-all. When maintenance is finished, you can simply delete the new room, and the original catch-all will resume intercepting users based on your typical and tested settings.