Top all-time · #2948
Greptime Blog
Company blog · greptime.com/blogsdataprogramming
Greptime Blog is the company blog at greptime.com, writing about data and programming. Since 2022, 26 different Hacker News readers have linked it 77 times, most often “Open-source Rust database tops JSONBench using DataFusion”. It is still writing: the last post was on 2026-10-31, and you can follow it by feed.
Too few sampled comments (10) to say how often HN recommends it.?
Why HN links it
HN readers link Greptime's Rust engineering posts, such as error handling and memory-leak debugging guides. Many comments are product pitches for GreptimeDB and GreptimeCloud rather than comments on the writing.
Summarised by Claude from a sample of 10 HN comments that link here. Each comment is marked recommending, critical or neutral (citing without judging); how this works.
The open-source observability database. Metrics, logs, and traces in one columnar engine on object storage, queried with SQL and PromQL.
Most-linked posts?
- Open-source Rust database tops JSONBench using DataFusion4 people · 5 mentions · first linked 2025-03-19
- Error Stacking in Rust3 people · 4 mentions · first linked 2024-05-09
- Fivefold Slower Compared to Go? Optimizing Rust's Protobuf Decoding Performance3 people · 3 mentions · first linked 2024-04-11
- Paper Reading: Exploiting Cloud Object Storage for High-Performance Analytics2 people · 2 mentions · first linked 2024-03-29
- The Control Flow – Some Insights on an Async Cancellation Problem in Rust2 people · 2 mentions · first linked 2023-01-12
- What is Log Aggregation and how to select a good log management system?2 people · 2 mentions · first linked 2024-12-03
- Reducing S3 API Calls by 98% – Exploring the Secrets of OpenDAL's RangeReader2 people · 2 mentions · first linked 2024-01-05
- Adaptive Request Concurrency in Vector2 people · 2 mentions · first linked 2025-01-16
- Unified Storage for Observability- GreptimeDB's Approach2 people · 2 mentions · first linked 2024-12-28
- Identifying and Solving Memory Leaks in Rust: An Easy-to-Follow Guide2 people · 2 mentions · first linked 2023-06-16
What Hacker News says?
was hoping to see https://github.com/GreptimeTeam/greptimedb on the list maybe 2026, or some bonus content for 2025 :) https://www.greptime.com/blogs/2024-09-09-report-summary
Comment linking /blogs/2024-09-09-report-summary
on “7 Databases in 7 Weeks for 2025”Submitted Error Stacking in Rust as a story · 137 points
HN discussionIt's interesting and cool! Looks like the software stack is still running on the local server. Looking for Prometheus and Grafana on the cloud? Check out GreptimeCloud! https://greptime.com/
Comment linking /
on “Monitoring energy usage with smart plugs, Prometheus and Grafana”Submitted Observability 2.0 and the Database for It as a story · 129 points
HN discussionMine is this one https://greptime.com/blogs/2024-05-07-error-rust Quite informative
Comment linking /blogs/2024-05-07-error-rust
on “Ask HN: Favorite blog in 2024?”Submitted Fivefold Slower Compared to Go? Optimizing Rust's Protobuf Decoding Performance as a story · 85 points
HN discussionURL changed, I think: https://greptime.com/blogs/2024-05-07-rust-error-handling
Comment linking /blogs/2024-05-07-rust-error-handling
on “Error Stacking in Rust”Submitted Unlock Complex Time Series Analysis in SQL with Range Queries as a story · 34 points
HN discussionIn the article the "Materialized view for data derivation" part does the heavy lifting. I assume this means they are creating time-series (indices) on-the-fly (with eventual backfill of the data). For the "exploratory analytics" the techniques developed for Dremel/Drill/Impala [0] are sufficient, and for anything else raw data crunching speeds are really impressive nowadays. (And they claim they can ingest 1B JSON r…
Comment linking /blogs/2025-03-18-jsonbench-greptimedb-performance
on “Observability 2.0 and the Database for It”Submitted Beyond Elk: Lightweight and Scalable Cloud-Native Log Monitoring as a story · 25 points
HN discussiongreat one! and i would recommnd this hands-on guide for diagnosing memory leaks in Rust applications. it explains how to enable heap profiling in 'jemalloc', collect memory allocation data, and generate flame graphs for analysis. https://greptime.com/blogs/2024-01-18-memory-leak#diagnosing...
Comment linking /blogs/2024-01-18-memory-leak
on “Rust: Investigating an Out of Memory Error”Submitted Open-source Rust database tops JSONBench using DataFusion as a story · 13 points
HN discussionThe following articles may also be of interest to the audience: - The definitive guide to error handling in Rust [0] - Error Handling for Large Rust Projects - Best Practice in GreptimeDB [1] - Designing error types in Rust [2] - Modular Errors in Rust [3] [0]: https://www.howtocodeit.com/articles/the-definitive-guide-to... [1]: https://greptime.com/blogs/2024-05-07-error-rust [2]: https://mmapped.blog/posts/12-rust…
Comment linking /blogs/2024-05-07-error-rust
on “Trying to get error backtraces in Rust libraries right”Submitted GreptimeDB Announces to Offer Distributed Solutions for Time-Series as a story · 8 points
HN discussionEven before Hyperpb, Go was already very competitive, e.g. this article from last year: https://www.greptime.com/blogs/2024-04-09-rust-protobuf-perf...
Comment linking /blogs/2024-04-09-rust-protobuf-performance
on “Hyperpb: Faster dynamic Protobuf parsing”Submitted Rust database achieves top JSONBench ranking as a story · 7 points
HN discussionThank you for considering GreptimeDB! Feel free to give it a try next time, and we warmly welcome you to join our Slack community: https://greptime.com/slack
Comment linking /slack
on “Open-source Rust database tops JSONBench using DataFusion”Submitted GreptimeDB Leads in Cold Run Performance on ClickHouse's Billion JSON Doc Bench as a story · 7 points
HN discussionHave you tried GreptimeCloud https://greptime.com/product/cloud The price looks cheaper https://greptime.com/pricing
Comment linking /pricing
on “Ask HN: Cheapest way to run a time-series database in cloud?”Submitted Show HN: GreptimeDB 2025 Roadmap as a story · 7 points
HN discussionSubmitted An OpenTelemetry Python Example – Building a Tesla Monitor as a story · 7 points
HN discussionSubmitted Unified Storage for Observability- GreptimeDB's Approach as a story · 6 points
HN discussionSubmitted Fivefold Slower Compared to Go? Optimizing Rust's Protobuf Decoding Performance as a story · 6 points
HN discussionSubmitted Time, for Real – GreptimeDB Is Now Open Source – Greptime as a story · 6 points
HN discussionSubmitted Vector in Production: Effective Data Collection and Transmission as a story · 4 points
HN discussionSubmitted From a Curious Outsider to a GreptimeDB Advocator Journey into Contribution as a story · 3 points
HN discussionSubmitted Show HN: Connect to more than 200 event sources (GreptimeDB as Telegraf Output) as a story · 3 points
HN discussionSubmitted Error Handling for Large Rust Projects as a story · 3 points
HN discussionSubmitted Reducing S3 API Calls by 98% – Exploring the Secrets of OpenDAL's RangeReader as a story · 3 points
HN discussionSubmitted Time-series data ingestion from Rust WebAssembly application as a story · 3 points
HN discussion
