Top all-time · #90
Redis
Company blog · redis.io/blogprogrammingdata
Redis is the company blog at redis.io, writing about programming and data. Since 2010, 409 different Hacker News readers have linked it 506 times, most often “Redis”. It is still writing: the last post was on 2026-10-29, and you can follow it by feed.
Rarely recommended · 3 of 40 sampled comments recommend it?
Why HN links it
HN readers link redis.io pages for command reference docs, which list time complexity for each command, plus persistence, streams, and licensing and news posts, usually as sources for their points.
Summarised by Claude from a sample of 40 HN comments that link here. Each comment is marked recommending, critical or neutral (citing without judging); how this works.
Developers love Redis. Unlock the full potential of the Redis database with Redis Enterprise and start building blazing fast apps.
Most-linked posts?
- /topics/persistence18 people · 19 mentions · first linked 2017-07-23
- /topics/persistence15 people · 15 mentions · first linked 2011-01-28
- Redis12 people · 12 mentions · first linked 2010-12-21
- /topics/memory-optimization9 people · 9 mentions · first linked 2011-02-22
- How fast is Redis?8 people · 11 mentions · first linked 2016-12-24
- /topics/security8 people · 10 mentions · first linked 2012-04-08
- Fork on Xen is extremely slow (Redis documentation)8 people · 10 mentions · first linked 2012-04-02
- Redis official site not working because it cannot connect to a redis8 people · 8 mentions · first linked 2018-07-30
- Redis Protocol Specification6 people · 6 mentions · first linked 2019-07-28
- Introduction to Redis Streams6 people · 6 mentions · first linked 2018-05-18
What Hacker News says?
Redis Streams is built-in and does all that for you. https://redis.io/topics/streams-intro
Comment linking /topics/streams-intro
on “The End of the Redis Adventure”Submitted Redis 2.6.0 Released as a story · 174 points
HN discussionHyperLogLog[1] — approximately count distinct elements from an extremely large set (e.g. 10⁹ elements) super efficiently. → Distinct count time complexity[2]: O(1) See Redis's PFCOUNT[4]. [1] https://en.wikipedia.org/wiki/HyperLogLog [2] For a fixed number of registers (e.g. Redis's implementation) [3] https://redis.io/commands/pfcount/
Comment linking /commands/pfcount/
on “Ask HN: What are some cool but obscure data structures you know about?”Submitted Redis Stack as a story · 158 points
HN discussionIt was announced back in November: https://redis.io/blog/introducing-azure-managed-redis/
Comment linking /blog/introducing-azure-managed-redis/
on “Redis is open source again”Submitted Redis Cluster Tutorial as a story · 126 points
HN discussionDismayingly, the CEO misspelled antirez's last name in this press release, https://redis.io/blog/agplv3/ . That's so incredibly disrespectful: > Following our license change, in November of 2024 Salvatore Sanfillipo (antirez) decided to rejoin Redis as a developer evangelist. Collaborating with Salvatore on new capabilities, company strategy and community engagement has been a true privilege that has made a major im…
Comment linking /blog/agplv3/
on “Redis is open source again”Submitted Distributed Locks with Redis (2014) as a story · 84 points
HN discussionSorry, you're right. ICs, CTOs, and CEOs. Oh my. Pardon me for not subscribing to another accountability shell game. I again call Mullenweg. /s in case I haven't piled it on thick enough to make an impact. Read the last link of TFA [0], the last time this came up [1] (noting the timespan) , and extrapolate as necessary. 0: https://redis.io/blog/agplv3/ (CEO) 1: https://redis.io/blog/redis-license-bsd-will-remain-bsd…
Comment linking /blog/redis-license-bsd-will-remain-bsd/
on “Redis is open source again”Submitted The Fastest Redis Ever as a story · 83 points
HN discussionAnd not merely "some developers", but a member of the Redis Core Team: https://redis.io/blog/redis-core-team-update/
Comment linking /blog/redis-core-team-update/
on “Redis is open source again”Submitted Redis 2.2.0 is out as a story · 83 points
HN discussionFrom the CEO blog post - https://redis.io/blog/agplv3/ >This achieved our goal—AWS and Google now maintain their own fork Was this really the goal though? Forcing your biggest users to fork your software and maintain their own divergent version is not really good for anyone. Sure, Amazon and Google (or AWS and GCP - type confusion in the source material) now have to contribute some more engineering hours to the open…
Comment linking /blog/agplv3/
on “Redis is open source again”Submitted Redis official site not working because it cannot connect to a redis as a story · 74 points
HN discussionThey require a Contributor License Agreement [0] whereby you grant them the copyright to your contribution. Which means they become the ultimate decision-maker for all contributions and can relicense however and whenever they wish. [0] https://redis.io/legal/redis-software-grant-and-contributor-...
Comment linking /legal/redis-software-grant-and-contributor-license-agreement/
on “Redis is open source again”Submitted Distributed locks with Redis as a story · 62 points
HN discussionFrom this post on the Redis blog https://redis.io/blog/agplv3/ it looks like they've made a bunch of new features available under the new AGPL license too: > Integrating Redis Stack technologies, including JSON, Time Series, probabilistic data types, Redis Query Engine and more into core Redis 8 under AGPL Redis Query Engine is new-to-me (I stopped following Redis closely after the license change) - it looks like an…
Comment linking /docs/latest/develop/interact/search-and-query/
on “Redis is open source again”Submitted Redis site now implements interactive examples with embedded live Redis cli as a story · 60 points
HN discussionThis exchange makes me sad. I know we can do better. I don't understand why so many people think that it's impossible to have open source in your heart while working for a big company in your day job. I don't understand why people who have dedicated a lot of their time and emotional energy to keep open source ways alive and help build a community effort are attacked because they work for a company that needs to be m…
Comment linking /blog/redis-8-0-m03-is-out-even-more-performance-new-features/
on “Redis is open source again”Submitted Redis Logo Contest Started (Design one now) as a story · 57 points
HN discussionI mean isn't lying bad? They literally made public statements saying they "will always remain BSD." https://redis.io/blog/redis-license-bsd-will-remain-bsd/
Comment linking /blog/redis-license-bsd-will-remain-bsd/
on “Redis is open source again”Submitted Redis Sentinel design draft 1.1 as a story · 56 points
HN discussionhttps://redis.io/blog/redis-license-bsd-will-remain-bsd/
Comment linking /blog/redis-license-bsd-will-remain-bsd/
on “Redis is open source again”Submitted Secondary indexing with Redis as a story · 37 points
HN discussionA bit more info from CEO: https://redis.io/blog/agplv3/ Sounds like SSPL did not yield the desired outcome. Glad AGPL is an option now.
Comment linking /blog/agplv3/
on “Redis is open source again”Submitted Redis CVE-2025-49844: Use-After-Free may lead to remote code execution as a story · 20 points
HN discussionListing time complexity up top is my favorite thing about the Redis docs. https://redis.io/commands/
Comment linking /commands/
on “It Can Happen to You”Submitted Redisearch New Vector Quantization as a story · 13 points
HN discussionOne of my favorite things about the Redis docs[1] is that they include the time complexity for every command type. [1] https://redis.io/commands/
Comment linking /commands/
on “It Can Happen to You”Submitted Redis is now available under the AGPLv3 open source license as a story · 9 points
HN discussion
