The answer to question “what’s the best thing to do now?” has always been really important for me.
I have a really busy life and prioritisation is critical in order to accomplish everything and save some free time. Handle the huge amount of personal data (mails, messages, chats, documents, ideas, …) I receive everyday and convert it to useful and usable information is essential but hard. Choose right tools is great starting point. Here is mine and why I’m using them.
I don’t know if the expression “Digital Data Hypochondriac” is clear enough. They are people always worried to lose all their digital data. Every time any components of their digital ecosystem doesn’t work as expected they’re scared.
I’m one of them. In 2000, when I was 15, my huge 14 GB hard disk contains almost all my digital life. One day the HD controller burn (literally, because of a short circuit) and I lost everything. EVERYTHING 🙁
A few days ago @lastknight gave me a strange cardboard package. I have no idea of what it was. “It’s a Google Cardboard” he said. Wasn’t helpful. Still no idea.
After a couple of Google search everything was clear. The strange package he gave me is a Knox V2: one of the implementation of the Google Cardboard project.
A few weeks ago I faced a performance issue around a lookup query on a 5GB MySQL database. About 10% of these request take 100x more time than the others. Syntax was really simple:
SELECT `authors`.* FROM `authors` WHERE `authors`.`remote_id` = 415418856 LIMIT 1;
Actually it wasn’t a real “slow query”. Table is quite large (3M+ record) and a response time of 300ms was reasonable. Unfortunately my application run this query thousands times each minute and performances were degraded. The remote_id is a standard varchar field indexed by a unique Hash index and I couldn’t understand why these queries take so much time.
BlogMeter is our main competitor in the Social Reputation segment in Italy. It was founded in 2007, the headquarters are in Milan, Turin, Rome and Madrid and developer team consist of about 10 coders. At Codemotion Vittorio Di Tomaso (CEO at BlogMeter) and Roberto Franchini (Chief Architect at BlogMeter) talk about infrastructure behind the company. Speaks were very interesting and, as I said for Datalytics, is funny to discover how approaches could be different when you face the same problem.
First talk was by Roberto Franchini about GlusterFS. I never used this distributed filesystem but seems really interesting and completely different than HDFS.
