QuestDB release January 2021

Brian Smith

Brian Smith

QuestDB Team

We've just released software version 5.0.6 and it comes with plenty of additional features and functionality, a full refactoring of PostgreSQL wire support, and multiple fixes to improve the stability of the system. Here's a roundup of recent changes that have just landed.

Building a garbage-free network stack for Kafka streams

Vlad Ilyushchenko

Vlad Ilyushchenko

QuestDB Team

Garbage collection is a type of automatic memory management that's used in many modern programming languages. The point of the garbage collector is to free up memory used by objects which are no longer being used by a program. Although it's convenient for developers not to think about manually deallocating memory, it can be a poisoned chalice that comes with several hard-to-predict downsides.

Authentication for InfluxDB line protocol

Patrick Mackinlay

QuestDB Team

QuestDB supports ingesting records using InfluxDB line protocol. This means that you can benefit from a simple, lightweight, and convenient message format to add data points to tables. We've further improved support for this feature by adding authentication, so your endpoint is more secure. This post describes how we added this functionality and how to enable it via QuestDB configuration.

NYC taxi meter and options pricing

Tancrede Collard

Tancrede Collard

QuestDB Team

Every cab I have ever ridden has been complaining about how hard it is to make ends meet as a driver. Using a dataset of over 1.6 billion taxi rides, 700 million FHV rides (Uber, Lyft, etc.), and 10 years of weather and gas prices data, I examine whether the antiquated meter system impacts NYC cabbies' livelihood, rather than competition from the likes of Uber.

Why performance matters in time-series data

Nicolas Hourcard

Nicolas Hourcard

QuestDB Team

Good data from the past helps us make better decisions in the present. Most of today's data were created within the past ten years, and human data output will only grow exponentially from here on. This sudden pervasiveness of data means that we need new ways to store and process information focusing on efficiency and sustainability. This article describes why speed and performance in a time-series database is the key to staying afloat in a sea of data.

Re-examining our approach to memory mapping

David G. Simmons

David G. Simmons

QuestDB Team

How does QuestDB get the kind of performance it does, and how are we continuing to squeeze another 50-60% out of it? This post will look at a code change we thought would create a negative performance impact, which actually brought a substantial boost in the system's overall performance and demonstrates that we are constantly learning more about performance improvements.

My journey making QuestDB

Vlad Ilyushchenko

Vlad Ilyushchenko

QuestDB Team

A few weeks ago, I posted the story of how I started QuestDB on Hacker News. Several people found the story interesting, so I thought I would post it here and describe the passage from working at a large energy trading company, discovering memory-mapping approaches in Java, the beginnings of building the system as a side-project, and how we got to where we are today with companies relying on production instances of our time-series database.

Use QuestDB and get swag!

David G. Simmons

David G. Simmons

QuestDB Team

We've been upping our SWAG game a lot lately, and we want to share it with you, the valuable members of our community! We want to give you the chance to show off your projects, show off your love for QuestDB, and to just show off! Whether it's large or small projects, follow the steps in this post so we can send some swag your way!