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MongoDB Replica Set and Related Memory Issues

For better understanding I have divided this post into two parts : – In the first part, I will try to explain Replica set and how it works. – Secondly, I will explain ways to manage storage space. MongoDB is an open-source document database (NoSQL) that...

How to resolve Leap Second Issues

YES, it’s true!!! When we all are busy in a party of the new year, Science gifted us “a second” to live more in 2016. 2017 was started a little bit late than usual. And this is not the first time, this is 27th time when we shifted “our...

To embed or not to embed – Mongodb

MongoDB is a schema-less, Not only SQL database system. A schema-less design allows for rapid prototyping. Often it pushes you into some dilemmas, most common of them – “To embed … or not to embed”. After searching on sites like StackOverflow, Reddit, Quora you...

Incremental backup for MongoDB

I am adding the complete process on how to use oplogs as an incremental backup for MongoDB. Although it is a little hacky way as there is no direct solution to this issue (like we have bin logs in PostgreSQL). Oplogs vs Journal Journals are low-level logs that are...