43+ Mongodb Database Architecture Example PNG
43+ Mongodb Database Architecture Example PNG. In mongodb structure is like database then collections and then documents. So there is no concept like tables and columns in the mongodb.
Number of fields, content and size of the document can be differ from one document to another. For reliability and resilience, you should have 3 data nodes (1 primary, 2 secondary), especially if write concern w=majority is used (to avoid rollbacks). For example, this architecture allows icmp internally for the entire private subnet.
Databases are created on the fly as soon as you store data in them.
Mongodb does not have a create database command like sql. Your created database (mydb) is not present in list. Let us understand how mongodb architecture works. But open source software mongodb proves.
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