SummitDB is an in-memory, NoSQL key/value database. It persists to disk, uses the Raft consensus algorithm, is ACID compliant, and built on a transactional and strongly-consistent model. It supports custom indexes, geospatial data, JSON documents, and user-defined JS scripting.Under the hood it utilizes Finn, Redcon, BuntDB, GJSON, and Otto.

SummitDB - In-memory NoSQL database with ACID transactions, Raft consensus, and Redis API

STINGER is a package designed to support streaming graph analytics by using in-memory parallel computation to accelerate the computation. STINGER is composed of the core data structure and the STINGER server, algorithms, and an RPC server that can be used to run queries and serve visualizations. 
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The data structure used is similar to an adjacency list except that the adjacencies of a vertex are stored in a linked list of semi-dense blocks of edges rather than a linked list of individual edges.  Also, the vertex array contains more metadata per each vertex than just a pointer to the linked of edge blocks.  

STINGER is a package designed to support streaming graph analytics by using in-memory parallel computation to accelerate the computation. STINGER is composed of the core data structure and the STINGER server, algorithms, and an RPC server that can be used to run queries and serve visualizations. 

STINGER - In-memory graph store and dynamic graph analysis platform

Apache arrow is an open source, low latency SQL query engine for Hadoop and NoSQL. Arrow enables execution engines to take advantage of the latest SIMD (Single input multiple data) operations included in modern processors, for native vectorized optimization of analytical data processing. Columnar layout of data also allows for a better use of CPU caches by placing all data relevant to a column operation in as compact of a format as possible.

Apache Arrow - Powering Columnar In-Memory Analytics 

Graphlite is an embedded graph databases for Python. Graphlite aims to change that by building a simple and fast graph layer over SQLite. Similar to FlockDB, Graphlite only stores adjacency lists, but they can be queried in the style of normal graph databases, e.g. with traversals.

Graphlite - Embedded graph databases for Python

 GridDB is an In-Memory NoSQL Database for highly scalable IoT applications . It has a KVS (Key-Value Store)-type data model that is suitable for sensor data stored in a timeseries. It is a database that can be easily scaled-out according to the number of sensors. High Reliability It is equipped with a structure to spread out the replication of key value data among fellow nodes so that in the event of a node failure, automatic failover can be carried out in a matter of seconds by using the replication function of other nodes.
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GridDB utilizes a “Memory first, Storage second” structure. “Hot” data is kept in-memory, allowing for much faster writes/reads on the most-used data.

 GridDB is an In-Memory NoSQL Database for highly scalable IoT applications . It has a KVS (Key-Value Store)-type data model that is suitable for sensor data stored in a timeseries. It is a database that can be easily scaled-out according to the number of sensors. High Reliability It is equipped with a structure to spread out the replication of key value data among fellow nodes so that in the event of a node failure, automatic failover can be carried out in a matter of seconds by using the replication function of other nodes. 

Griddb - High performance, High scalability and High reliability database for big data

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SummitDB - In-memory NoSQL database with ACID transactions, Raft consensus, and Redis API

STINGER - In-memory graph store and dynamic graph analysis platform

Apache Arrow - Powering Columnar In-Memory Analytics

Graphlite - Embedded graph databases for Python

Griddb - High performance, High scalability and High reliability database for big data

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SummitDB - In-memory NoSQL database with ACID transactions, Raft consensus, and Redis API

STINGER - In-memory graph store and dynamic graph analysis platform

Apache Arrow - Powering Columnar In-Memory Analytics

Graphlite - Embedded graph databases for Python

Griddb - High performance, High scalability and High reliability database for big data

TechStack

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