Advices to speak in public

Personal challenge Talking in public is always a personal challenge, some of the tasks you must approach are: Study the subject-matter Update your knowledge Speaking in public …

What is a MongoDB chunk?

We already know that MongoDB is capable of keeping our cluster balanced for one or more collections (Two steps to shard a MongodB collection). This is done chunk-based (per shard), it is not document-based or size-based. What is a chunk? But, what is a chunk? To get our data evenly distributed […]

Summary of my talk about MongoDB sharding

                  MongoDB User Group Madrid ( Date: October, 13th 2015 19:00h. Place: Telefónica Flagship Store building. Gran Vía street, 28 28013 Madrid Room: Auditorium. First floor Event: MongoDB User Group Madrid ( Talk 1: Tag-based sharding Speaker:  Juan Roy @juanroycouto Talk 2: […]

The slides of my talk at Madrid MongoDB User Group

Good night! Here you have the slides I prepared for my talk about MongoDB tag-based sharding. Anyway, this is the link to view them at slideshare: Tag-based sharding Juan Roy presentation Soon I will write about my thoughts of the event. Cheers!

Everything ready for my talk about MongoDB sharding

Hi guys! Tomorrow, at 19:00pm, I will be talking about MongoDB sharding at Telefonica Flagship Store (map). Thank you very much to Norberto @nleite, and to the whole meetup organization, for having thought about me to this occasion. I am going to talk, and show, about the possibilities that MongoDB offers us to get a […]

A new MongoDB meeting at MUG Madrid

A new MongoDB meeting will be in Madrid on October 13th. In this occasion I will have the opportunity to talk about Tag-based sharding. This will be complemented with a talk by Rafael Aranaz @rafaranaz about GridFS. I believe the afternoon will be very interesting, users with less expertise and […]

MongoDB Aggregation Framework (part 4)

This is the forth and last post of the serie about the MongoDB Aggregation Framework. We will continue with different queries. By the moment, we are going to use our five documents set inserted in our ‘aggfwktest’ collection. Average computation in a new field

The highest and the lowest, […]