Welcome to Federico-Razzoli.com

Most of Federico-Razzoli.com articles
are slowly being moved to Vettabase.com,
and in particular Vettabase blog.

This website will eventually contain my personal views and personal projects.
New contents will not necessarily be technical.


London Meetup – Open Source Communities: vendors and users working together (September 2019)

London Meetup – Open Source Communities: vendors and users working together (September 2019)

Open Source Communities: vendors and users working together. Event organised by London open source databases meetup, on 18th September. ...
Choosing Cassandra consistency levels

Choosing Cassandra consistency levels

Good practices and advice to use #Cassandra consistency levels in practice, with an eye on performance and scalability ...
READ ONLY transactions in MySQL (→Vettabase)

READ ONLY transactions in MySQL (→Vettabase)

MySQL transactions can be read only. Here's how to use them, and why they are useful. ...
Cassandra error on login: Cannot achieve consistency level LOCAL_ONE

Cassandra error on login: Cannot achieve consistency level LOCAL_ONE

Cassandra login fails with: "Cannot achieve consistency level LOCAL_ONE"? Let's see why it happens, and how to solve the problem ...
Why MySQL tables need a primary key (→Vettabase)

Why MySQL tables need a primary key (→Vettabase)

In MySQL and MariaDB, all tables should have a primary key - especially InnoDB tables - this is almost common wisdom. But why? Let's discuss the reasons. ...