logoalt Hacker News

Ten years of ClickHouse in open source

149 pointsby saisrirampurlast Monday at 8:51 PM46 commentsview on HN

Comments

drchaimtoday at 10:39 AM

I discovered ClickHouse around 2017-18 and built a PoC to replace Elasticsearch: 5x better storage and qps, in a couple of weeks.

Managers rejected it because it wasn't well known and was seen as "some database made by Russians."

On a personal level, it's quite sad to have seen that train coming so early and not been able to get on board.

show 4 replies
adsharmatoday at 2:44 PM

It's interesting that the blog post places SQLite and Ladybird on the spectrum, but omits it's chief open source rival: DuckDB.

Agree that Level 3 is what inspires confidence. But we need to invent new business models to sustain in the era of vibe-coded databases.

himata4113today at 9:57 AM

ClickHouse recently has been a breath of fresh air compared to using timescaledb for a long time. Although psql is the greatest there is and I really enjoyed the fact that I could rely on a single database system to run everything, when it came to migration maintenance and deployment it's really a pain and it also feels like development on timescaledb is a bit wishy washy with all the structural changes from version to version and it really feels like an alpha product sometimes.

show 1 reply
lazyasciiarttoday at 10:57 AM

> You can open a pull request as an experiment, without aiming for it to be merged - it will be tested with the same level of scrutiny as production releases. Found a new memory allocator, a new compression library, a new hash table, a data format, or a sorting algorithm? - bring it to ClickHouse, and it will expose it inside-out

Wow

show 1 reply
jayshtoday at 9:48 AM

ClickHouse replacing Loki finally made our observability stack feel 'right'. It really is a powerhouse for logs and general analytical queries.

show 1 reply
ortatoday at 9:31 AM

I've been using clickhouse for the last year for in-house analytics and found it a really pleasant experience, thanks for all the progress you've made

show 1 reply
baqtoday at 10:13 AM

clickhouse is the low key amazing tech people are busy using instead of posting about. keep it up!

brunojppbtoday at 11:31 AM

Clickhouse has been a game changer for some of the companies i have worked in the past. This reminds me of this podcast episode (1) from the Rust in Production pod about their Rust adoption.

1. https://open.spotify.com/episode/0TBKDUhO0KihBxEzZqnQx1

spprashanttoday at 12:16 PM

If your data is too big for postgres, it seems like moving straight to Clickhouse is the best option. We have been through an whole array of distributed database technologies, and Clickhouse might be first one that doesn't have too many compromises.

show 1 reply
Talpur1today at 11:07 AM

10 Years! quite a long journey, specailly observeability part is need of hour

ddorian43today at 10:19 AM

Clickhouse is *really* gatekeeping the "zero copy replication" where you store data on object-storage and have high availability from the open source version.

show 4 replies
aleks_me2today at 1:57 PM

[flagged]

haeseongtoday at 12:14 PM

The query speed deserves the praise, but the JSON ingestion path has quiet footguns nobody mentions here. Every numeric column comes back as a string over JSONEachRow, so a forgotten Number() cast silently turns arithmetic into string concatenation, and with input_format_skip_unknown_fields enabled a single typo in a column name drops that field with no error at all. Worth wiring an assertion that inserts a row and reads it back into CI before trusting the dashboards.

show 2 replies
throwaway012377today at 9:47 AM

[dead]