What do you mean by hot backup and cold backup in mongodb respectively

  mongodb, question

What are the hot and cold backups in mongodb?

MongoDB itself does not mention hot and cold backup. If it is mentioned in other materials, I think the so-called hot backup should refer to real-time replication among replication set members, which is the basis of MongoDB’s high availability mechanism. The cold standby may be the data from dump in a specified period. It depends on what you want to know.