Disque 10 RC1 is out Today I’m happy to announce that the first release candidate for Disque 1.0 is available. If you don’t know what Disque is, the best starting point is to read the README in the Github project page at http://github.com/antirez/disque. Disque is a just piece of software, so it has a material value which

Generating unique IDs an easy and reliable way Two days ago Mike Malone published an interesting post on Medium about the V8 implementation of Math.random(), and how weak is the quality of the PRNG used: http://bit.ly/1SPDraN. The post was one of the top news on Hacker News today. It’s pretty clear and informative from the point of view of

6 years of commit visualized Today I was curious about plotting all the Redis commits we have on Git, which are 90% of all the Redis commits. There was just an initial period where I used SVN but switched very soon. Full size image here: http://antirez.com/misc/commitsvis.png !~! Each commit is a rectangle. The height is the number of

Recent improvements to Redis Lua scripting Lua scripting is probably the most successful Redis feature, among the ones introduced when Redis was already pretty popular: no surprise that a few of the things users really want are about scripting. The following two features were suggested multiple times over the last two years, and many people tried

A few things about Redis security IMPORTANT EDIT: Redis 3.2 security improved by implementing protected mode. You can find the details about it here: https://www.reddit.com/r/redis/comments/3zv85m/new_security_feature_redis_protected_mode/ From time to time I get security reports about Redis. It’s good to get reports, but it’s odd that what I get is usually about things like Lua sandbox escaping, insecure temporary

Moving the Redis community on Reddit I’m just back from the Redis Dev meeting 2015. We spent two incredible days talking about Redis internals in many different ways. However while I’m waiting to receive private notes from other attenders, in order to summarize in a blog post what happened and what were the most important ideas

Clarifications about Redis and Memcached If you know me, you know I’m not the kind of guy that considers competing products a bad thing. I actually love the users to have choices, so I rarely do anything like comparing Redis with other technologies. However it is also true that in order to pick the right solution

Lazy Redis is better Redis Everybody knows Redis is single threaded. The best informed ones will tell you that, actually, Redis is kinda single threaded, since there are threads in order to perform certain slow operations on disk. So far threaded operations were so focused on I/O that our small library to perform asynchronous tasks

About Redis Sets memory efficiency Yesterday Amplitude published an article about scaling analytics, in the context of using the Set data type. The blog post is here: https://amplitude.com/blog/2015/08/25/scaling-analytics-at-amplitude/ On Hacker News people asked why not using Redis instead: https://news.ycombinator.com/item?id=10118413 Amplitude developers have their set of reasons for not using Redis, and in general if you have

Thanks Pivotal Hello Redis Labs I consider myself very lucky for contributing to the open source. For me OSS software is not just a license: it means transparency in the development process, choices that are only taken in order to improve software from the point of view of the users, documentation that attempts to cover