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Software Engineering

The most popular blog posts about software engineering on Hacker News. 526 posts.

2017
451

Time-Travel Debugging for JavaScript/Node.js

Time-traveling in the execution history of a program during debugging enables a developer to precisely track and understand the sequence of statements and program values leading to an error. To provide this functionality to real world developers, we embarked on a two year journey to create a production quality…

455

Why Constant-Time Crypto?

In 1996, Paul Kocher published a novel attack on RSA, specifically on RSA implementations , that extracted information on the private key by simply measuring the time taken by the private key operation on various inputs. It took a few years for people to accept the idea that such attacks were practical and could be…

463

Databases and Distributed Deadlocks: A FAQ

A developer FAQ created by the Citus engineering team when they first began working on distributed deadlock detection in the Citus database. Explores when PostgreSQL acquires locks, when deadlocks occur, and how Citus detects and prevents distributed deadlocks in Postgres.

464

Getting Started with Event Sourcing in Postgres

In a previous post we explored how our application tracks sent emails. We set things up to update or insert a record for each email with the current state (delivered, dropped, etc). In this post we'll look at an alternative data model where we'll store each event as its own record and then roll up t

467

Dolphin Progress Report: January 2017

Sometimes, it's easy to forget how much work there is left to do on a refined emulator. While the rush of getting a new game to boot or discovering a crazy feature hidden within an obscure gem never gets old, those moments do tend to get further and further apart as accuracy increases. As if to defy fate itself…