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Apache Ignite vs Redis: What are the differences?
Apache Ignite and Redis are both in-memory data storage systems that offer high-performance and scalability. Let's explore the key differences between them.
Data Model: Apache Ignite offers a flexible data model that supports key-value, SQL, and compute grid functionalities. It allows users to store and manipulate complex structured data using SQL queries, distributed compute operations, and in-memory key-value stores. On the other hand, Redis primarily focuses on a simple key-value data model, offering basic data structures like strings, lists, sets, and hashes.
Durability: Apache Ignite provides durability by automatically storing data in memory as well as on disk, ensuring data persistence even after system restarts or failures. It supports write-ahead logging, replication, and data partitioning across the cluster. While Redis also supports data persistence, it typically relies on periodic snapshots and append-only log files for durability, which may result in some data loss in case of system failures.
Scalability: Apache Ignite offers horizontal scalability by distributing data across the cluster nodes using data partitioning techniques. It can handle much larger datasets and higher workloads by leveraging distributed computing capabilities. Redis, on the other hand, has a single-threaded architecture that can limit its scalability for certain use cases, although it offers a clustering feature to scale out by sharding data across multiple nodes.
Supported Data Types: Redis provides a rich set of built-in data structures like strings, lists, sets, sorted sets, and hashes, allowing users to perform various operations on these data types. Apache Ignite, in addition to key-value operations, supports more complex data structures like collections, maps, and SQL tables, enabling users to perform advanced computations and queries on the stored data.
Persistence Options: Redis offers different persistence options, including both snapshotting and append-only log files (AOF). Users can choose between these options based on their requirements for data durability and recovery. Apache Ignite, on the other hand, supports write-ahead logging to ensure data durability and provides multiple choices for storage, including in-memory, disk-based, or a combination of both, allowing users to optimize performance and persistence based on their specific needs.
Parallel Query Processing: Apache Ignite supports distributed SQL queries, allowing users to execute complex queries across the entire dataset in a parallel and distributed manner. It leverages its distributed computing capabilities to optimize query processing and achieve faster query response times. Redis, on the other hand, does not provide built-in support for distributed SQL queries and primarily focuses on key-value operations.
In summary, Apache Ignite is a distributed in-memory computing platform that integrates with existing data sources and provides features like distributed caching, compute grid, and streaming processing, making it suitable for large-scale, high-performance data processing and analytics. Redis, on the other hand, is an open-source, in-memory data structure store known for its simplicity, speed, and versatility, primarily used for caching, real-time analytics, and message brokering in web applications.
Pros of Apache Ignite
- Written in java. runs on jvm5
- Multiple client language support5
- Free5
- High Avaliability5
- Rest interface4
- Sql query support in cluster wide4
- Load balancing4
- Distributed compute3
- Better Documentation3
- Easy to use2
- Distributed Locking1
Pros of Redis
- Performance887
- Super fast542
- Ease of use514
- In-memory cache444
- Advanced key-value cache324
- Open source194
- Easy to deploy182
- Stable165
- Free156
- Fast121
- High-Performance42
- High Availability40
- Data Structures35
- Very Scalable32
- Replication24
- Pub/Sub23
- Great community22
- "NoSQL" key-value data store19
- Hashes16
- Sets13
- Sorted Sets11
- Lists10
- NoSQL10
- Async replication9
- BSD licensed9
- Integrates super easy with Sidekiq for Rails background8
- Bitmaps8
- Open Source7
- Keys with a limited time-to-live7
- Lua scripting6
- Strings6
- Awesomeness for Free5
- Hyperloglogs5
- Runs server side LUA4
- Transactions4
- Networked4
- Outstanding performance4
- Feature Rich4
- Written in ANSI C4
- LRU eviction of keys4
- Data structure server3
- Performance & ease of use3
- Temporarily kept on disk2
- Dont save data if no subscribers are found2
- Automatic failover2
- Easy to use2
- Scalable2
- Channels concept2
- Object [key/value] size each 500 MB2
- Existing Laravel Integration2
- Simple2
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Cons of Apache Ignite
Cons of Redis
- Cannot query objects directly15
- No secondary indexes for non-numeric data types3
- No WAL1