Suchen und Finden - Elasticsearch effizient einsetzen

https://videos.ijug.eu/w/8ZbxZJ7yb5B9eyxvWg5WqS

Suchen und Finden - Elasticsearch effizient einsetzen

PeerTube
Senior Full Stack Engineer - RMS at Mark43

Mark43 is hiring Senior Full Stack Engineer - RMS

Das ist aber auch nicht die feine englische Art: der Technikchef von #elasticsearch stellt einen #Exploit für eine Sicherheitslücke der Konkurrenz von #mongodb auf GitHub und gefährdet damit massiv die betroffenen Instanzen und Nutzer.

Gerade zwischen den Jahren können viele nicht so schnell updaten.

Bei allem Sinn für Konkurrenz, das geht so nicht an. Man hilft sich gegenseitig. Man veröffentlicht keine Exploits. Das machen nur asoziale Arschlöcher.

https://www.heise.de/news/MongoBleed-Exploit-fuer-kritische-Luecke-in-MongoDB-erleichtert-Angriffe-11125112.html

„MongoBleed“: Exploit für kritische Lücke in MongoDB erleichtert Angriffe

Wer für eine MongoDB-Instanz verantwortlich ist, kann sich nicht zurücklehnen: Ein Exploit für eine schwerwiegende Lücke macht Upgrades jetzt noch dringender.

heise online

How to Install #Zammad on #AlmaLinux #VPS (10-Minute Quick-Start Guide) This article provides a guide on how to install Zammad on #AlmaLinux VPS.

If you're looking to run a robust open-source #helpdesk on your AlmaLinux VPS, Zammad is a great pick. It's modern, feature-packed, and supports everything from ticketing to chat and reporting. This guide ...
Continued 👉 https://blog.radwebhosting.com/how-to-install-zammad-on-almalinux-vps/?utm_source=mastodon&utm_medium=social&utm_campaign=mastodon.social #elasticsearch #selfhosting #certbot #opensource #ticket #customersupportplatform #letsencrypt #selfhosted

Another migration complete. Our Mastodon instance burningboard.net now has a working full-text search again!

Before:
Elasticsearch 7.x on Debian Linux  

Now:
Opensearch 3.2.0 on FreeBSD 15.0-RELEASE  

Importing 2 billion(!) docs into the search index took a couple of hours, but now that piece of infrastructure is also modernized and fully operational.

For performance reasons, opensearch runs on a seperate physical server than the rest of the Mastodon instance itself.

#elasticsearch #opensearch #linux #freebsd #mastodon #mastoadmin /cc @tux

Ứng dụng Next.js chỉ dùng tìm kiếm từ khóa (BM25) nhanh nhưng không hiểu ý nghĩa. Vector search với ELSER cho phép tìm kiếm ngữ nghĩa, cải thiện độ liên quan khi câu truy vấn khác từ khóa. Kết hợp cả BM25 và semantic (hybrid) mang lại tốc độ + độ chính xác tối ưu. Nên triển khai pipeline ELSER, tạo trường sparse_vector và dùng bool‑should. #Nextjs #VectorSearch #Elasticsearch #SemanticSearch #BM25 #AI #CôngNghệ #SearchEngine #TìmKiếm

https://dev.to/ubcodes/keywords-are-not-enough-why-your-nextj

how to clean up an ancient (8 years!) #elasticsearch cluster with MCP + #claude: https://frutik.medium.com/robots-vs-zombies-in-twilight-battle-6409123a2767
PS: not being able to delete indices might be a bit of a feature
You don’t need Elasticsearch: BM25 is now in Postgres | Tiger Data

Postgres is everywhere. Millions of developers use it and love it. It's the database behind Stripe, Instagram, Spotify, and countless startups. Search is everywhere too. Every app needs it. Product catalogs. Documentation. User content. Support tickets. And now: AI agents and RAG pipelines that need to find the right documents before generating answers. So naturally, people try to use Postgres for search. And quickly hit its limits. The usual next step? Add Elasticsearch. Or Algolia. Or Types

Tiger Data Blog
Made a transparent network bridge on #NixOS which sits between router & #LAN switch, monitoring traffic for #IDS #intrusiondetection , #Suricata and #Zeek capture and analyze packets → #Filebeat ships #logs#Elasticsearch with #GeoIP ingest pipeline → #Grafana setup of dashboard to visualise data is defined in flake itself so using the flake will give the same dashboard. #flake details here https://codeberg.org/adingbatponder/reticulum_nixos_flake/src/branch/main/features/network-appliance
Hardware: HP EliteDesk 800 G1 SFF 16Gb RAM & https://www.jacob.de/produkte/Intel-Ethernet-Server-Adapter-I350-T4-I350T4V2-artnr-2094756.html #i350t4

If you're in for reading some #SRE horrors, take a look at https://engineering.zalando.com/posts/2025/12/we-hacked-ourselves-so-you-dont-have-to.html

Explains how a team at #ZalandoTech learned to analyze long running #Elasticsearch queries the hard way.

Zalando Engineering Blog - The Day Our Own Queries DoS’ed Us: Inside Zalando Search

Once upon a time, during a normal Sunday, our team ran into an unexpected challenge: an Elasticsearch cluster that suddenly became sluggish and unresponsive due to a self-inflicted Denial of...

Zalando Engineering Blog