Tag: #elasticsearch

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• The Generational Shift in Data Stores and Queues — Licenses, Forks and the Apache Attic

  Ten projects in the data layer that gave up their place or had their distribution terms changed, documented using only official announcements and Apache Attic records as evidence. The license changes at Redis, Elasticsea

  2026-08-12 · 9 min read #open-source#database#kafka#redis#elasticsearch

• Making Logs Searchable, and Not Going Broke Doing It — Structuring, Mapping Explosions, Retention, and Real Cost

  The point where log costs overtake compute costs arrives for most organizations. What delays that point isn't the compression ratio — it's the decision about what becomes a field. This post covers field design for struct

  2026-08-02 · 15 min read #observability#logging#opensearch#elasticsearch#cost

• Why the Default Vector Index Moved from HNSW to Disk — the Tradeoffs of Elasticsearch bbq_disk

  As of Elasticsearch 9.4 (2026-05-05), the default index type for float vectors changed to bbqdisk — a disk-based IVF index. In under a year the default moved from int8hnsw to bbqhnsw and then, a second time, to a disk in

  2026-07-16 · 23 min read #vector-database#elasticsearch#ann-index#quantization#hnsw

• NoSQL and Heterogeneous Data Migration — Between RDB, MongoDB, and Many Stores

  Relational and document stores differ in the data model itself. This article lays out, from a practitioner view, what must be redesigned when moving from RDB to document and back, how to migrate with zero downtime using

  2026-06-16 · 16 min read #database#migration#nosql#mongodb#cdc

• Self-Hosted Search Engines 2026 Deep Dive - Meilisearch, Typesense, Manticore, OpenSearch, Vespa, ParadeDB, Orama, Elasticsearch

  The 2026 search engine landscape was redrawn as self-hosted alternatives like Meilisearch, Typesense, Manticore, OpenSearch, Vespa, ParadeDB, and Orama exploded in popularity on top of the managed market that Algolia bui

  2026-05-16 · 21 min read #english#search-engines#meilisearch#typesense#manticore

• Next-Gen Search Engines 2026 — Meilisearch vs Typesense vs Elasticsearch vs OpenSearch vs Quickwit vs Vespa Deep Dive (The Landscape After Elastic)

  The 2026 search-engine landscape started at Elasticsearch and scattered everywhere. Meilisearch and Typesense have taken in-app search to a minimalism aesthetic, AWS made an escape route via OpenSearch, Quickwit arrived

  2026-05-14 · 21 min read #search-engine#meilisearch#typesense#elasticsearch#opensearch

• Elasticsearch & Lucene Internals Complete Guide 2025: Deep Dive into Segments, Inverted Index, Refresh/Flush/Merge, and Shard Routing

  The secret behind how Elasticsearch searches billions of log entries in milliseconds every day. A complete 720-line analysis of Lucene segment structure, inverted index, the refresh/flush/merge cycle, shard routing, and

  2026-04-15 · 26 min read #elasticsearch#lucene#search#inverted-index#segment

• Elasticsearch, OpenSearch, and Lucene Internals — Inverted Index, BM25, Sharding, Vector Search, Hybrid RAG (2025)

  Why is search hard? Lucene Segments and Merge, the math of Inverted Index, how BM25 beat TF-IDF, primary/replica shards and routing, Ingest pipelines, the Query DSL maze, kNN and HNSW, the 2021 Elastic vs AWS license war

  2026-04-15 · 11 min read #elasticsearch#opensearch#lucene#search#vector-search

• Elasticsearch Complete Guide 2025: From Search Engine to Log Analytics & Vector Search

  Everything about Elasticsearch! Inverted index internals, mapping/analyzers, Query DSL, aggregations, ELK stack, vector search (kNN/HNSW), cluster operations, performance optimization, and interview questions.

  2026-03-24 · 21 min read #elasticsearch#search#elk-stack#kibana#logstash

• ELK Stack Log Collection and Analysis Pipeline: Elasticsearch, Fluentd, and Kibana Production Deployment and Optimization

  A comprehensive guide covering ELK/EFK stack architecture, Elasticsearch cluster design with shard and replica strategies, ILM (Index Lifecycle Management) configuration, Fluentd/Fluent Bit log collection pipeline setup,

  2026-03-12 · 13 min read #observability#elk-stack#elasticsearch#fluentd#kibana

• OpenSearch Operations, Management, and Index Design Practical Guide 2026

  A comprehensive guide for OpenSearch cluster operators covering index design, shard/replica strategies, ISM rollover lifecycle, monitoring and alerting, incident response, security hardening, and migration with practical

  2026-03-04 · 22 min read #database#opensearch#elasticsearch#index-design#operations-management

• Fluent Bit Complete Guide: Architecture, Configuration, and Kubernetes Integration for the Lightweight Log Processor

  A comprehensive guide covering Fluent Bit lightweight architecture and pipeline (Input, Parser, Filter, Buffer, Output) structure, Kubernetes DaemonSet deployment, log routing, parser configuration, Elasticsearch/Loki/S3

  2026-03-01 · 41 min read #fluent-bit#logging#observability#kubernetes#fluentd