问题
I have M2 Mongodb cluster and wanted to downgrade to M0. When I go to modify it only allows for upgrades. Is there another way to downgrade to free tier?
回答1:
You can't scale down to am M0 as the free tier uses a different shared architecture to the other clusters. However you can dump your data using mongodump and restore using mongorestore to an M0 cluster as long as it doesn't exceed the constraints of the cluster.
来源：https://stackoverflow.com/questions/62156731/how-to-downgrade-from-m2-to-m0-mongodb-cluster-tier