Elastic FR

Suivez-nous pour être au courant de ce qui se passe au niveau de la communauté francophone elastic. Suivez @elastic pour des informations sur #ElasticStack.

[Elastic @elastic]

Exact kNN on 1M vectors: ~10 QPS
HNSW on the same dataset: ~1000 QPS

This is because HNSW builds a layered graph:
shortcuts at the top, all vectors at the bottom.

A query enters at the top layer, finds the closest node, uses it as the entry point for the layer below, and repeats until it reaches a tight local search at layer 0.

It also let you tune your indexing speed vs query speed vs recall, so you can get the index that suits your needs.

[David Pilato 🇺🇦🇪🇺🇫🇷 @dadoonet]

At @Elastic, we just took a massive leap. 🚀
Our new columnar metrics engine is 30x faster than Prometheus. Better performance, lower TCO, and all your telemetry in one place.
Proud of the team for this milestone!

Details here: https://t.co/yIAd7SL1hz

[Elastic @elastic]

30x faster than Prometheus on gauge averages sounds like a typo. It's not.

Elasticsearch 9.4 rebuilt TSDS and ES|QL into a fully columnar metrics engine. Vectorized time series aggregations, zero-copy decoding, doc value skippers replacing inverted indices.

The result at 1.4M time series: queries that took Prometheus 30+ seconds finish in under 2.

[Elastic Dev @elastic_devs]

semantic_text now defaults to jina-embeddings-v5-text on Elastic Inference Service.

Multilingual semantic search. Zero extra configuration. Define the field, index your data, search.

Query in English: "comfortable headphones for long flights"

A French review ranked above the English one, because "très confortable pour les longs trajets en avion" was a closer semantic match than the English review, which split its focus across battery life and noise cancellation.

[David Pilato 🇺🇦🇪🇺🇫🇷 @dadoonet]

Oubliez le RAG basique. Comment gère-t-on vraiment la mémoire d'un agent conversationnel en prod ? 🛠️

RDV chez La HSC avec @IvanMonnier & Louis Jourdain (ChapsVision). Architecture multi-index & observabilité au programme.

👉 https://t.co/fceU0summh

[Elastic @elastic]

Elastic is heading to KubeCon Amsterdam 2026 🇳🇱

Visit booth #980 to see how we’re building OpenTelemetry to simplify ingestion, reduce pipeline complexity, and deliver consistent observability across metrics, logs, and traces with a focus on agentic observability.

Come see the demos and meet the team: https://t.co/Wua0YoNxqo

[Elastic Dev @elastic_devs]

Don’t .query() me twice!

Yours truly

[Elastic Dev @elastic_devs]

APT confirmation used to take hours. Now it takes 4 minutes.

Attack Discovery correlates alerts into a single narrative.
A workflow triggers the agent.
The agent:
• Looks up the hash on VirusTotal
• Runs ES|QL queries across your logs
• Finds the on-call analyst
• Creates a case
• Opens a Slack incident channel

All before you read the threat intel report.

[Elastic Dev @elastic_devs]

Nothing to buy, no license to upgrade, and no approval process.

[Elastic Dev @elastic_devs]

Forcing LLMs to follow a strict schema is hard.

Build reliable AI agents using structured outputs

This guide shows how to ground your agents using data contracts to ensure valid responses every time.

What you will learn:
• How to define your schema for agentic workflows
• Using the Elasticsearch inference API for data extraction
• Implementing validation

Stop guessing if your agent will return valid JSON.

[David Pilato 🇺🇦🇪🇺🇫🇷 @dadoonet]

Et voilà ! So proud to reach the 100th meetup milestone for the @ElasticFR 🇫🇷 community.

A huge thank you to our speakers, sponsors, and community members for making every event a success! ❤️

📺 Watch here: https://t.co/AEeStTI05E

[Elastic Dev @elastic_devs]

What are you going to eat today? For the final advent calendar gift of the year, @PiotrPrz shares a simple 3-step script to get the healthiest possible food, whatever language you are using, thanks to our OOTB JINA model: https://t.co/A6VinPzRD6

[Elastic FR @ElasticFR]

Quelle année 2025 les amis ! Et pour bien commencer 2026, nous fêterons notre 100ème meetup #Elasticsearch chez @BNPParibas avec la présence notamment de @kimchy. 🔎 https://t.co/FMhyJSdBoQ

Bonnes fêtes de fin d'année ! 🎄🎅🏼🎁

[Elastic Dev @elastic_devs]

We have added a new and interesting retriever! The `diversify` retriever reduces the result set from another retriever by applying a diversification strategy to the top-N results, helping prevent similar documents from dominating the top results.

[Elastic Dev @elastic_devs]

The advent calendar post of the day is all related to the powerful maps feature in #Kibana. Combine it with ES|QL and 🥳

[Elastic FR @ElasticFR]

Le post du calendrier de l'avent Elastic du jour est également écrit en français par Valentin !

[Elastic Dev @elastic_devs]

Discover this trick and more with the Advent Calendar day 6: https://t.co/XgUvEwmeLt

Bonus point for our French community, you can read it in French here: https://t.co/3228sF6uBI

[Elastic FR @ElasticFR]

📣 Cette année, nous lançons à nouveau le calendrier de l'Avent. Et @Anaethelion nous régale avec son article, en français ! 🇫🇷
🔗 https://t.co/4S9q0pHYQe

[Elastic Dev @elastic_devs]

The Elastic Advent Calendar is back again this year! Let's start the first day with @anaethelion, who is offering his `--help` to Santa: https://t.co/MmPMuveQvp

#CLI #Elasticsearch

[Elastic FR @ElasticFR]

🎥 Meetup ElasticFR 98 : Analyse de données interactive : la rencontre de ES|QL, @ApacheArrow et #Pandas par @bluxte d'@elastic ⤵️
https://t.co/VtZVbJ7N2E

[Elastic FR @ElasticFR]

🎥 Meetup ElasticFR 98 : Une command line (#CLI) pour #Elasticsearch: Oxydation d'un process par @anaethelion d'@elastic ⤵️
https://t.co/JZZKk595cz

[Elastic FR @ElasticFR]

Hier soir, chez @CriteoEng, nous avons eu le droit à deux présentations exceptionnelles de @anaethelion et @bluxte... Les vidéos suivront bientôt 😎