Apache Ignite
Apache Ignite is an open-source, distributed database and in-memory computing platform that combines a distributed key-value store, SQL engine, and compute grid to deliver low-latency processing over large, horizontally scaled datasets.
Definition
Apache Ignite is an open-source, distributed database and in-memory computing platform that combines a distributed key-value store, SQL engine, and compute grid to deliver low-latency processing over large, horizontally scaled datasets.
Overview
Ignite is designed as a memory-centric distributed platform: data is held primarily in RAM across a cluster of nodes for speed, with the option to persist to disk for durability, effectively acting as both a cache and a full-featured database. Applications can interact with it as a distributed key-value store, through ANSI SQL queries, or by pushing compute logic directly to the nodes that hold the relevant data, avoiding costly data movement across the network. A distinguishing feature of Ignite is its ability to sit in front of an existing relational database as a distributed caching and compute layer, letting applications scale read and compute-heavy workloads without redesigning their primary datastore. It also natively supports distributed transactions, ACID guarantees at the key level, and machine learning libraries that can train models directly on data already resident in the cluster's memory. Because it spans caching, SQL, and compute in a single platform, Ignite is often compared to combinations of tools like Redis for caching and Apache Spark for distributed compute, but positioned as a unified alternative for teams that want one system handling both roles alongside strong consistency guarantees for distributed systems and workloads that also resemble an in-memory database.
Key Features
- Memory-centric architecture with optional disk-based persistence
- Distributed SQL engine supporting ANSI SQL queries
- Distributed key-value API alongside SQL access
- Compute grid for pushing logic to where data resides
- ACID-compliant distributed transactions
- Horizontal scalability across commodity server clusters
- Built-in machine learning library for in-memory model training