Free and Open Source, Distributed, RESTful Search Engine
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🚌 The IK Analysis plugin integrates Lucene IK analyzer into Elasticsearch and OpenSearch, support customized dictionary.
- elasticsearch
- ik-analysis
- analyzer
- java
QuestDB is a high performance, open-source, time-series database
- time-series
- low-latency
- database
- sql
🔎 Open source distributed and RESTful search engine.
- search
- search-engine
- analytics
- java
The world's fastest open query engine for sub-second analytics both on and off the data lakehouse. With the flexibility to support nearly any scenario, StarRocks provides best-in-class performance for multi-dimensional analytics, real-time analytics, and ad-hoc queries. A Linux Foundation project.
Open source transactional distributed database. Linear scalability and proven fault-tolerance on commodity hardware or cloud infrastructure without compromising performance.
JanusGraph: an open-source, distributed graph database
- graph-database
- tinkerpop
- gremlin
- hbase
A scalable, distributed Time Series Database.
Replicate your Key Value Store across your network, with consistency, persistance and performance.
An open source clone of Amazon's Dynamo.
Apache Solr open-source search software
- lucene
- solr
- search
- nosql
SirixDB is an an embeddable, bitemporal, append-only database system and event store, storing immutable lightweight snapshots. It keeps the full history of each resource. Every commit stores a space-efficient snapshot through structural sharing. It is log-structured and never overwrites data. SirixDB uses a novel page-level versioning approach.
- xquery
- java
- temporal-data
- storage
Open-source, self-hosted enterprise & site search server built on OpenSearch. Crawls web / file / DB / cloud sources, 20+ languages, REST API, and AI/RAG & semantic search. Apache-2.0.
- java
- elasticsearch
- full-text-search
- lucene
A fully asynchronous, non-blocking, thread-safe, high-performance HBase client.
DAO oriented database mapping framework for Java
- java
- annotation-processor
- jdbc
- dao
An open-source columnar data format designed for fast & realtime analytic with big data.
- indexr
- columnar-storage
- olap
- datawarehouse
OME (Open Microscopy Environment) develops open-source software and data format standards for the storage and manipulation of biological light microscopy data. A joint project between universities, research establishments and industry in Europe and the USA, OME has over 20 active researchers with strong links to the microscopy community. Funded by private and public research grants, OME has been a major force on the international microscopy stage since 2000.
- omero
- java
- python
- server
Fast and storage-efficient spatial database engine for OpenStreetMap data
Relational database access made simpler and safer
- open-source
- accessing-databases
- java
- sql