Author: Igor Donchovski

This is the third and final post in the series of blog posts for MongoDB replica set backups with Point In Time Recovery (PITR). This will be focused on restores, particularly details on PITR using the full and incremental backups….

This is the second post in the series of blog posts for MongoDB replica set backups. I’ll try to show you how to properly run incremental backups using the oplog.rs collection. Restores with PITR using the full and incremental backups…

In this series of blog posts for MongoDB replica sets, I will show you how to properly run full backups using lvm snapshot followed by incremental backups using the oplog. I will also cover restores with point in time recovery…

In one of my latest database restore jobs, I was helping a MySQL client with issues related to mysqlbinlog and I wanted to share it here. In case you didn’t know, MySQL is a simple SQL shell with input line…

Recently a client came to me asking “How do we verify if a full text search index is being used on MongoDB?” The db.showIndexes() command shows an index on a text field, but explain() shows COLLSCAN and the query is…

I had interesting use case with a MongoDB replica set I’d like to share. When the replica set consists of four nodes and the Primary goes down, no new node is elected to become the new Primary. The replica set…

It’s November, time for MongoDB Europe event. For the second consecutive year, London hosted all the MongoDB experts to share what is new and exciting about the most popular NoSQL database in the world. After I missed the event last…

Igor Donchovski, Database Consultant at Pythian, explains the MongoDB Operations log. Discover how the replication window compares to MySQL, how to change the oplog size, and what is improved in MongoDB 3.0 wiredTiger engine.