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jovezhong

jovezhong on Hacker News

Re:MLX-based LLM inference engine for macOS with native Swift implemen... on Friday June 06, 2025 @02:14AM (#44198237)
Another cool option to run local models on macOS. LM Studio might have a better user interface and download experience, but Swama’s pure CLI experience is still awesome!
Re: on Friday April 25, 2025 @01:46PM (#43796538)
Blog: https://hackaday.com/2025/04/23/abusing-duckdb-wasm-to-creat... Repo: https://github.com/patricktrainer/duckdb-doom

a great way to abuse DuckDB

Re:GitHub MCP Server on Saturday April 05, 2025 @06:10PM (#43597226)
I am a bit surprised the recommended/only guide to use this mcp server is via docker run, although running via node should be possible too https://github.com/github/github-mcp-server/issues/111
Re:The Llama 4 herd on Saturday April 05, 2025 @06:06PM (#43597205)
why only llama3.x models are listed on ollama? llama4 no longer wants to support ollama, to better track the adoption?
Re:A Year of Rust in ClickHouse on Wednesday April 02, 2025 @12:11PM (#43558273)
"Sadly, ClickHouse is written in C++, not in Rust.".. nice opening
Re:WarpStream marketing website with a terminal interface on Tuesday April 01, 2025 @01:45PM (#43549588)
Certainly fun to use. Maybe you will check the docs/demo more seriously, after you type the command in the UI..
Re:FireScale: Benchmark from Firebolt, simulates real-world production... on Friday March 28, 2025 @01:21AM (#43501823)
The results show Firebolt delivering: 8x better price-performance than Snowflake, 18x better than Redshift, and 90x better than BigQuery. Near-linear concurrency scaling, achieving low latency of 120 milliseconds with a throughput of 2500 QPS
Re:TDgpt: AI agent for advanced time-series analytics on Wednesday March 26, 2025 @09:53PM (#43489647)
SELECT _flow, _fhigh, _frowts, FORECAST(i32, "algo=lstm,model=lstm_foo,alpha=95,period=10,wncheck=0") FROM foo;
Re:Show HN: macOS app to help you blink more on Saturday March 22, 2025 @12:01PM (#43446682)
I was wondering how to figure out "when you stare at it for too long", then saw "Uses Mac's built-in front facing camera".. Err, I am not sure whether I want to keep camera on for this..
Re:Ask HN: Are You Polite to AI? on Friday March 21, 2025 @12:28PM (#43437658)
Typing "thanks" or "great" to AI make me feel better
Re:Show HN: MCP-Kafka – Natural Language Interface for Kafka Commands on Thursday March 20, 2025 @01:34PM (#43426255)
Claude can help you write a lot of okay Python code. Yes, Go is great, but in this MCP case, because of uvx and pypi, as well as kafka python lib, choosing Python is not bad at all

Show HN: Open-Source C++ Apache Iceberg Client with Write Support

Posted by jovezhong on Thursday March 20, 2025 @01:31PM
from the show-hn dept.

https://github.com/timeplus-io/proton/pull/928

Existing OSS C++ projects like ClickHouse and DuckDB support reading from Iceberg tables. Writing requires Spark, PyIceberg, or managed services.In this PR https://github.com/timeplus-io/proton/pull/928, we are open-sourcing a C++ implementation of Iceberg integration. It's an MVP, focusing on REST catalog and S3 read/write(S3 table support coming soon). You can use Timeplus to continuously...

( Read More... | 3 comments | 2 points | on HN )
Re:Show HN: MCP-Kafka – Natural Language Interface for Kafka Commands on Thursday March 20, 2025 @01:57AM (#43420203)
Nice. I built something similar but with Python https://github.com/jovezhong/mcp-timeplus

with pipy and uvx, it will be a bit easier for others to install the mcp server. Just to add a JSON, without need to download binary manually.

Show HN: Explain stream processing watermark with a react comp in docs, by AI

Posted by jovezhong on Sunday March 16, 2025 @02:51PM
from the show-hn dept.

https://docs.timeplus.com/understanding-watermark

We all know AI can generate code and content. (maybe just me), I just realized AI can also generate code *for* documentation, to create easy-to-understand and interactive visualization/tool to better explain complex mechanism.For example, in the stream processing space, watermark is not quite easy to understand. In the past I have a few blogs/talks about this but with Claude or any other...

( Read More... | no comments | on HN )
Re:Show HN: MCPGod: Fine-grained control over MCP clients, servers, an... on Saturday March 15, 2025 @01:32AM (#43370231)
Running a mcp tool is expected to be lightweight. Starting a docker container is not impossible but will make this process a bit heavy. Maybe in the future the MCP client can provide python/nodejs runtime and also have extra flag to allow the users to confirm the requested permissions for certain mcp tools. Today running MCP servers with whatever executable available locally is too risky
Re:Show HN: MCPGod: Fine-grained control over MCP clients, servers, an... on Friday March 14, 2025 @07:23PM (#43368379)
most of the MCP tools use Python env (uvx) or Node or even Java to run ANY CODE on your machine, so even the python virtual env is a sandbox but it's to isolate the dependencies not the file/network access. If you are unlucky, you can still install a malware mcp server to clean up your disk or send your photos to somewhere. MCP servers are just local scripts. There are some permission control from deno but this is not the only runtime engine for MCP server. It'll be cool to have something like Chrome extension permission or iOS/Android permission ask, but I highly doubt this will be available since on your local server, there are just too many ways to run scripts.
Re:Native Git Support in Zed on Wednesday March 12, 2025 @08:46PM (#43349304)
I use the GitHub Desktop app a lot, every day, the viewing diff there is so clear. But I am happy to use Zed to open multiple projects, switch branch, stage changes, commit and push. Otherwise I have to switch to different repo in the GitHub Desktop. In most cases, I don't need a full IDE, since I only need to make few lines change of a terraform or a markdown file, or update the dependency in a package.json.
Re:Git beta is now publicly available to everyone on Zed Preview on Tuesday March 11, 2025 @05:47PM (#43337419)
Zed is my favorite text editor (IDE?) written in Rust. Sure, VS Code and Cursor are popular, but just like Google Chrome, there are just too many extensions to slow down everything. So I switched from Chrome to Arc, and VS Code to Zed. Very personal choice. But I do miss the Git integration for sure. After trying the private beta of Git integration for a while with Zed preview, so glad to see it's now in the public beta (but still need download the Zed Preview.app)
Re:Show HN: C++ AWS MSK IAM Auth Implementation – Goodbye Kafka Passwords on Monday March 10, 2025 @01:48AM (#43317344)
According to my teammate who actually wrote the C++ code for this, there are lack of documentations of how the AWS_MSK_IAM is supposed to work. He has to check the Java/Python implementation line by line to avoid those guesswork
Re:Show HN: C++ AWS MSK IAM Auth Implementation – Goodbye Kafka Passwords on Sunday March 09, 2025 @10:26PM (#43316387)
I tried to find related code with iam and msk in the file names and failed. To get authenticated with MSK, need to get proper signed and pass to the MSK endpoints. Maybe AWS SDK team are just too busy or not get enough customer ask(escalations?) for using C++ to access MSK cluster with IAM only auth.
Re:Show HN: C++ AWS MSK IAM Auth Implementation – Goodbye Kafka Passwords on Sunday March 09, 2025 @09:35PM (#43316026)
I don't know exactly why AWS didn't include C++ SDK when they announced all languages are supported. Maybe it's more common today to use Java/Rust/Python to build data products, but C++ is still such a solid case. Anyway, I will try to reach out AWS team to see whether they are open to put this into the AWS SDK for C++
Re:5ire: AI Assistant and MCP Client on Friday March 07, 2025 @11:13AM (#43291372)
I use 5ire more than ChatGPT app or Claude app, as you can choose different models and install various MCP servers

Show HN: C++ AWS MSK IAM Auth Implementation – Goodbye Kafka Passwords

Posted by jovezhong on Thursday March 06, 2025 @02:39PM
from the show-hn dept.

https://github.com/timeplus-io/proton/blob/develop/src/IO/Kafka/AwsMskIamSigner.cpp

In 2023, AWS announced[1] IAM authentication for MSK Kafka clusters with support for "all programming languages"… except C++. While Java[2], Python[3], Go[4], and others got official SDKs, C++ developers/vendors were stuck hardcoding SCRAM-SHA credentials in code/configs or relying on heavier Java-based tools like Kafka Connect or Apache Flink.Later, community projects added Rust[5] and Ruby[6]...

( Read More... | 14 comments | 3 points | on HN )

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