I'm working with MongoDB Atlas and I have a cluster of 3 with M30 and 100gb of storage.
My current usecase is the following: - An user dispatches one search in my platform - The platform dispatches this search to other providers (12) - I get like 2k documents per provider for this search
For the configuration, I'm working with Mongodb Atlas in a 3 replica-set cluster (M30 = 8 GB RAM • 100 GB storage). I also have an TTL index to expire the documents in the only database/collection I'm using to delete the documents after 10 minutes based on a date field in each document (searchStartedAt).
What I was trying to understand is this alert I'm getting ("Replication Oplog Window has gone below 1 hours"), if I got this right is how long the master node can continue receiving data before the slave nodes get out of sync.
I would like to check if my understanding is right and if there is any tunning possible to avoid this.
Can someone give me a hint? If any other information can help regarding this, please let me know and I'll update the question.
Thanks a lot for any tips regarding it.