HaloDB is a fast and simple embedded key-value store written in Java. HaloDB is suitable for IO bound workloads, and is capable of handling high throughput reads and writes at submillisecond latencies.
What is HerdDB ?
HerdDB is a distributed Database, data is distributed among a cluster of server without the need of a shared storage.
HerdDB primary language is SQL and clients are encouraged to use both the JDBC D
A scalable time series database based on Bigtable, Cassandra, and Elasticsearch. Go to https://spotify.github.io/heroic/ for documentation.
This project adheres to the Open Code of Conduct. By partici
Marble is a high performance in-memory hive sql engine based on Apache Calcite. It can help you to migrate hive sql scripts to a real-time computing system. It also provides a convenient Table API to help you to build custom SQL e
Welcome to the Blazegraph Database
Blazegraph™ DB is a ultra high-performance graph database supporting Blueprints and RDF/SPARQL APIs. It supports up to 50 Billion edges on a single machine. It is in production use for
CMAK (Cluster Manager for Apache Kafka, previously known as Kafka Manager)
CMAK (previously known as Kafka Manager) is a tool for managing Apache Kafka clusters. See below for details about the name change.
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Spring Data R2DBC
The primary goal of the Spring Data project is to make it easier to build Spring-powered applications that use data access technologies. Spring Data R2DBC offers the popular Repository abst
GImlet is an attempt to make a useful query application. Users can create their own predefined (parameterized) queries to run against a database. Following the result set of that query, you can 'drill down' furth
Lettuce - Advanced Java Redis client
Lettuce is a scalable thread-safe Redis client for synchronous, asynchronous and reactive usage. Multiple threads may share one connection if they avoid blocking and transaction
PgNio is an asynchronous PostgreSQL client for Java and the JVM. It was built to solve both simple and advanced Postgres needs without being too opinionated or inflexible. Since all protocol features are suppo
Beaker is a distributed, transactional key-value store. Beaker is N/2 fault tolerant but assumes that failures are fail-stop and that messages are received in order. Beaker is strongly consistent; conflicting trans
Haeinsa is linearly scalable multi-row, multi-table transaction library for HBase. Haeinsa uses two-phase locking and optimistic concurrency control for implementing transaction. The isolation level of transac
We’re excited to introduce mssql-cli, a new and interactive command line query tool for SQL Server. This open source tool works cross-platform and proud to be a part of the dbcli.org community.
JanusGraph is a highly scalable graph database optimized for storing and querying large graphs with billions of vertices and edges distributed across a multi-machine cluster. JanusGraph is a transactional database that can suppo