Open source Elastic Cloud alternatives

Meilisearch 1.0 – Open-source search engine built in Rust

“I really appreciate that you took the time to write this detailed comment! Thank you! > but for me one example of production looks like a raspberry pi in a school house in rural africa (internet in a box project) This is an interesting perspective, one that I hadn't considered…”

Meilisearch 1.0 – Open-source search engine built in Rust

“Like I say, it's just my subjective gut reaction. I guess if there was one main take away it's "describe your competitors with the same language you'd use to describe yourself", where possible. None, completely stand-alone with built in http(s) server | None, recommends a…”

ZincSearch – lightweight alternative to Elasticsearch written in Go

“(disclaimer: I'm one of the cofounder of Quickwit.io, we are doing log search) (edited to add vector search category and add manticore) When looking at OSS search projects, it's nice to have a rough ideas of the different use cases, here is the list I have in mind: - user facing…”

ZincSearch – lightweight alternative to Elasticsearch written in Go

“Elasticsearch and ZincSearch both are general purpose search engines based on inverted indexes that can be used for app search as well as log search. In my stint at AWS I found that most companies used elasticsearch and anecdotally 90%+ users used it for log search. Log search…”

reference-coding: symbol index returns whole class/method bodies and does not index declarations as their own symbols —

“A fair, deterministic retrieval test of the reference-coding claim (grep vs XERJ symbol search over Apache Lucene, 12 verifiable questions, precise symbol queries, coverage gaps held out) found XERJ ingests **32–48x more bytes per answered question than grep** and loses recall…”

corpus index: finalize-catalog deadlocks all 297 threads on a fresh build; post-kill resume prints "searchable" while th

“## What happened Standing-corpora rebuild round 3 (fresh `--fresh` build of `xerj-search` against the reference server on :9200, rc.83 binary, ~54k files / 1.28 GB). Two distinct failures, in sequence: ### 1. `finalize-catalog` deadlocks — all 297 threads futex-waiting The index…”

Tantivy – full-text search engine library inspired by Apache Lucene

“I recently deployed Quickwit (based on Tantivy, from the same team) in production to index a few billion objects and have been very pleased with it. Indexing rates are fantastic. Query latency is competitive. Perhaps most importantly, separation of compute and storage has proven…”

Tantivy – full-text search engine library inspired by Apache Lucene

“I started working on a personal project a few years ago, after being insanely frustrated with the resource hog that is elasticsearch. That is coming from someone who's personal computer has more resources than what a number of generous startups allocate for their product. I…”

Zvec: A lightweight, fast, in-process vector database

“Just put Zvec vs LanceDB vs Qdrant through the paces on a 3 collection (text only) 10k per collection dataset. Average latency across ~500 queries per collection per database: Qdrant: 21.1ms LanceDB: 5.9ms Zvec: 0.8ms Both Qdrant and LanceDB are running with Inverse Document…”

Zvec: A lightweight, fast, in-process vector database

“Author here. Thanks for putting Zvec through its paces and sharing such detailed results—really appreciate the hands-on testing! Just a bit of context on the storage behavior: Zvec currently uses memory-mapped files (mmap) by default, so once the relevant data is warmed up in…”

OpenSearch: AWS fork of Elasticsearch and Kibana

“True, but it's not quite the same as what they've done with OpenSearch/Elastic. Also, from what I've read, despite claims, the compatibility isn't complete, esp with stuff like aggregations. There are a few use-cases where you'd want the ability to have a managed/hosted vanilla…”

OpenSearch: AWS fork of Elasticsearch and Kibana

“The announcement says "All of the software in the OpenSearch project is released under the Apache License, Version 2.0 (ALv2)." You are suggesting this is not correct?”

Incorrect type definitions

“The supplied type definitions are not correct importing the Index as such: ``` import { Index } from 'flexsearch'; const index = new Index(); ``` results in the error: ```'Index' only refers to a type, but is being used as a value here``` There exits working type definitions in…”

Usage in ESM environment

“I'm not able to use the latest version (0.7.31) in an ESM environment, such as a Vite app (browser-side) or a native-ESM node app (with TypeScript). The document doesn't also doesn't have anything about this. --- The situation was a little bit better in version 0.7.21 with…”

Txtai: Open-source vector search and RAG for minimalists

“Use RAG. Fine tune will bias something to return specific answers. It's great for tone and classification. It's terrible for information. If you get info out of it, it's because it's a consistent hallucination. Embeddings will turn the whole thing into a bunch of numbers. So…”

Txtai: Open-source vector search and RAG for minimalists

“Thanks for giving txtai a try. txtai doesn't require Java. It has a text extraction component which can optionally use Apache Tika. Apache Tika is a Java library. Tika can also be spun up as a Docker image much like someone can spin up Ollama for LLM inference. Looking at your…”

Datadog acquires Quickwit

“Yes, I've been using Vector since very early on, long before Datadog acquired it, and Datadog have continued ongoing maintenance and feature additions at a slow-but-steady pace, which I think is good. Like Quickwit, Vector is very stable and already quite complete. So I'm not…”

Datadog acquires Quickwit

“pg_search dev here -- Thanks for mentioning us. Re: Tantivy. I'm hopeful the community Paul and the Quickwit team have built on top of Tantivy will continue to flourish. I'm sure Datadog will build product(s) with Quickwit, which is built on Tantivy and will contribute to it.…”

Add scripts/check-dups.sh as GitHub action

“For each PR/commit (both on main and devel branches) check if there are duplicate entries using a GitHub action. Use [`scripts/check-dups.sh`]( You can edit it if needed”

Add to Code section

“Add to Code section ``` - [Postman Public collections]( - Explore the best APIs, collections, workspaces in the world on the Postman Public API Network ```”

Bleve: Full-text search and indexing for Go

“First, here are the top two requests that we do NOT plan to implement. 1. Make Bleve a distributed index, or make Bleve into something that is a more direct ES competitor. We have no plans to do this because we think that is better built at a different layer. We have hooks we…”

Bleve: Full-text search and indexing for Go

“Bleve originated as part of a solution to a problem customers faced when using Couchbase. Almost all customers have at least some sort of search use case, but often times that use case isn't particularly complicated. Many of them were running an ES cluster, moving the data from…”

Open-Sourcing Vespa, Yahoo’s Data Processing and Serving Engine

“FWIW, there was a research team at Yahoo who would actually get insights about the way people used language (relevant for contextual search) from Yahoo Answers. They were more active during the earlier years when the content quality was much higher. I don't know if they used…”

Open-Sourcing Vespa, Yahoo’s Data Processing and Serving Engine

“From what I can tell from the documentation, schemas ("search definitions" in Vespa parlance) are stored as files that are part of the "application package" (which I don't know what is yet); it doesn't seem like you can make dynamic schema changes through a REST API, and some…”

Ask HN: Let's build an HN uBlacklist to improve our Google search results?

“I'm not sure about the specifics on how uBlacklist works but these[0] uBlock origin filters seem to be very basic and invariant to small changes. Google could certainly could make them harder to remove but given that they don't put up much of a fuss (to my knowledge) for their…”

Ask HN: Let's build an HN uBlacklist to improve our Google search results?

“uBlacklist? You have that much of a problem getting relevant search results? Seems like bad search technique and paranoia. Seems crazy to have to maintain a blacklist for a few domains on specific searches. You can "search around" the bad domains with higher quality search…”

Matrix and Riot Confirmed as the Basis for France’s Secure Instant Messenger App

“So totally agreed that rewrites are almost always not a good idea, as per the famous "Things you should never do!" Joel Spolsky post ( ). The difference for a project like Matrix however is that our product is not really any single software codebase but the protocol spec itself.…”

Matrix and Riot Confirmed as the Basis for France’s Secure Instant Messenger App

“Just clarify since I've upset some members of its community. I'm speaking from a development perspective. Sure Riot might have a large amount of users online, but what portion of that is people developing on top of the protocol. As I originally stated the docs are less than…”

problems with use on mobile

“the site seems to show "no results" for images on android which when uploaded on desktop work. example: ![desktop]( ![mobile](”

Can you create a version for Google Colab?

“Can you create a version for Google Colab?”

$625M worth of ETH drained on Axie Infinity's Ronin Network

“I thought you were looking for a sincere response to your point about skeptics, but you're now labelling me as someone who doesn't understand the technology and using that label to discredit my point... but I do understand the technology, as is evidenced by my comment, which you…”

$625M worth of ETH drained on Axie Infinity's Ronin Network

“I don't know much about Axie Infinity, and it may well be terrible. I was addressing your claim about the private keys. I think that criticisms of what people build with blockchain are entirely fair, and make for informative discussion. But too often, blockchain critics make…”

Broader application

“## Problem What are you trying to do that SentrySearch doesn't support well today? Concrete example >I am trying to use sentrysearch to go over my football recordings for goals and saves. But it didn't work at all. I wonder if the model used in analyzing footage is about…”

Bug: uv tool install on Windows defaults to CPU-only Torch (No GPU detection for local backend)

“When following the README instructions to install SentrySearch as a global tool using uv tool install ".[local]", the installation defaults to the CPU-only version of PyTorch on Windows. This occurs because uv resolves the standard PyPI index, which does not include CUDA-enabled…”

USearch: Smaller and faster single-file vector search engine

“I will reply with a meme from my recent talk on Vector Databases, if that is in order: § Supporting advanced filtering in USearch In the low-level C++ interface we already support arbitrary predicates (callbacks) evaluated during HNSW graph traversal. JIT-ing them from the…”

USearch: Smaller and faster single-file vector search engine

“Sure! You can pass exact=True to the search interface. > Adding to index appears to be very slow. Interesting. Can you please elaborate? We benchmark it on daily basis, but there is always a chance we forgot some corner case :) PS: Thanks for considering us! USearch is already…”