问题
During my investigation on compatible DBs for IoT data storing I looked into MongoDB and pricing is a little bit confusing.
Just wondering what is the difference between MongoDB Atlas and MongoDB Atlas for AWS as they both work on AWS?
And what is the right way to run MongoDB Atlas on AWS?
回答1:
As far as I can see, they both should mostly be similar :
MongoDB Atlas :
You can directly go to MongoDB-Atlas portal & create a MongoDB cluster(a cluster will usually be 3-shard/node replica set on which a DB is hosted) on either of the cloud providers (AWS/Google/Azure). This way all database updates/maintenance will usually be done by vendor. Quiet easy & simple - Which most people are opting for these days (SAAS/ db hosted on cloud). You can also opt for a free cluster which should be suitable for basic needs kind of learning MongoDB. While creating cluster you can check for pricing which is based on cluster level (M0 to M700), You can upgrade your cluster when ever you wish to, but when I was creating one I've noted that you would pay upfront for a certain amount of years likely 3 & whether you use the money or not you would not get anything back but it you've paid less then you might be charged over the time of usage. You'll pay bills thru MongoDB Atlas.
MongoDB Atlas for AWS :
From here aws-marketplace when you see the text marketplace (where multiple companies/people collaborate to sell products) it's basically these two companies have collaborated to provide MongoDB as SAAS. With this you can actually come from AWS rather than than Atlas from itself. When it comes to pricing AWS seems to provide some credits, It would be better if you can consult AWS & Atlas to check on their pricing & other terms if you really wanted to use it for enterprise purpose. You might end-up owing an AWS account to pay bills for this usage (Which hectic if you don't use AWS for other use-cases). Additionally if you check below on MongoDB Atlas for AWS page it seems like just a starting point is given at AWS side but entire setup would be done at Atlas.
You're charged for your purchase on your AWS bill. After you purchase a contract, you're directed to the vendor's site to complete setup and begin using this software.
来源：https://stackoverflow.com/questions/60263057/what-is-the-differencce-between-mongodb-atlas-and-mongodb-atlas-for-aws