Topic on Help talk:CirrusSearch

I'm currently working on testing CirrusSearch with AWS Elasticsearch in my dev environment, but first had to implement (AWS Elasticache) Redis for the job queue. However, I was recently told by someone on the Search team (I apologize, I forget who) that this may not be necessary unless there are perhaps hundreds of thousands to millions of jobs as WMF has. I've seen at most maybe 100-120k (aggregate for my five wikis) but mine are usually 100s, occasionally 1000s, and even more rarely 10s of thousands, which were otherwise handled fine in MySQL. So is it really necessary for CirrusSearch to have the job queues in Redis at that level?

Extension:CirrusSearch#Dependencies has a note about Redis. It's not required, though.