Apache Ignite.NET

The Apache Ignite .NET Developer Hub

Welcome to the Apache Ignite .NET developer hub. You'll find comprehensive guides and documentation to help you start working with Apache Ignite.NET as quickly as possible, as well as support if you get stuck. Let's jump right in!

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What is Ignite.NET?

In-Memory Computing Platform

Apache Ignite is ...

the in-memory computing platform
that is durable, strongly consistent, and highly available
with powerful SQL, key-value and processing APIs

Durable Memory

Ignite's durable memory component treats RAM not just as a caching layer but as a complete fully functional storage layer. This means that users can turn the persistence on and off as needed. If the persistence is off, then Ignite can act as a distributed in-memory database or in-memory data grid, depending on whether you prefer to use SQL or key-value APIs. If the persistence is turned on, then Ignite becomes a distributed, horizontally scalable database that guarantees full data consistency and is resilient to full cluster failures.

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Ignite Persistence

Ignite Native Persistence is a distributed, ACID, and SQL-compliant disk store that transparently integrates with Ignite's Durable Memory as an optional disk layer storing data and indexes on SSD, Flash, 3D XPoint, and other types of non-volatile storages.

With the Ignite Persistence enabled, you no longer need to keep all the data and indexes in memory or warm it up after a node or cluster restart because the Durable Memory is tightly coupled with persistence and treats it as a secondary memory tier. This implies that if a subset of data or an index is missing in RAM, the Durable Memory will take it from the disk.

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ACID Compliance

Data stored in Ignite is ACID-compliant both in memory and on disk, making Ignite a strongly consistent system. Ignite transactions work across the network and can span multiple servers.

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Complete SQL Support

Ignite provides full support for SQL, DDL and DML, allowing users to interact with Ignite using pure SQL without writing any code. This means that users can create tables and indexes as well as insert, update, and query data using only SQL. Having such complete SQL support makes Ignite a one-of-a-kind distributed SQL database.

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Key-Value

The in-memory data grid component in Ignite is a fully transactional distributed key-value store that can scale horizontally across 100s of servers in the cluster. When persistence is enabled, Ignite can also store more data than fits in memory and survive full cluster restarts.

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Collocated Processing

Most traditional databases work in a client-server fashion, meaning that data must be brought to the client side for processing. This approach requires lots of data movement from servers to clients and generally does not scale. Ignite, on the other hand, allows for sending light-weight computations to the data, i.e. collocating computations with data. As a result, Ignite scales better and minimizes data movement.

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Scalability and Durability

Ignite is an elastic, horizontally scalable distributed system that supports adding and removing cluster nodes on demand. Ignite also allows for storing multiple copies of the data, making it resilient to partial cluster failures. If the persistence is enabled, then data stored in Ignite will also survive full cluster failures. Cluster restarts in Ignite can be very fast, as the data becomes operational instantaneously directly from disk. As a result, the data does not need to be preloaded in-memory to begin processing, and Ignite caches will lazily warm up resuming the in memory performance.

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Ignite and Ignite.NET

Ignite.NET is built on top of Ignite:

  • .NET starts the JVM in the same process and communicates with it via JNI & C++
  • .NET, C++ and Java nodes can join the same cluster, use the same caches, and interoperate using common binary protocol
  • Java compute jobs can execute on any node (Java, .NET, C++)
  • .NET compute jobs can only execute on .NET nodes

What is Ignite.NET?

In-Memory Computing Platform