MySQL 8.3 is a robust choice for applications requiring strong data consistency and complex transactions, while Redis 8 excels in scenarios demanding high speed and real-time data processing. The choice depends on the specific requirements of the application, with MySQL favoring data integrity and Redis prioritizing performance.
| Attribute | MySQL 8.3 | Redis 8 |
|---|---|---|
| Data Model | Relational | Key-Value (also functions as a document database) |
| Scalability | Designed to scale both vertically and horizontally. MySQL Router 8.3 enhances routing capabilities for InnoDB Clusters, automatically detecting primary and secondary instances. | Horizontal and Vertical (clustering supports data distribution across multiple nodes) |
| ACID Compliance | Yes. ACID compliance is primarily controlled by the `innodb-flush-log-at-trx-commit` parameter. | Not strictly ACID compliant (focuses on speed and performance) |
| Query Language | SQL | Custom commands (includes a query engine for more complex queries) |
| Data Durability | Disk-based | In-Memory with optional disk persistence (different levels available) |
| Replication Support | Supports both master-slave and multi-master replication. Extends the format of global transaction identifiers (GTIDs) used in MySQL Replication and Group Replication with tags to enable identification of groups of transactions. | Master-Slave (potentially Multi-Master, introduces a new replication mechanism with dual replication streams) |
| Transaction Support | Supports complex transactions. Transactions in Percona Server for MySQL are ACID-compliant. | Offers transaction support |
| Indexing Capabilities | Primarily uses B-trees for most indexes. Exceptions include R-trees for spatial data types, hash indexes for MEMORY tables, and inverted lists for FULLTEXT indexes. Supports up to 64 indexes per table. | Hash, B-tree, and secondary indexing |
| Use Cases | Well-suited for OLTP (Online Transaction Processing). Commonly used in small to medium-scale single-server deployments, and as a component in LAMP-based web applications. | Caching, session management, real-time analytics, message broker, high-frequency trading, gaming leaderboards, IoT edge processing, AI/ML caching layers |
| Community Support & Documentation | Large and active community. Documentation is available, including release notes and reference manuals. | Strong community support and comprehensive documentation (large user base and active community) |
| Security Features | Includes authentication plugins, role-based access control, SSL/TLS encryption for data in transit, and data masking features. MySQL Enterprise Edition includes a firewall that provides protection against SQL injection attacks by learning legitimate query patterns. | Access Control Lists (ACLs) for fine-grained control, password authentication, TLS support for encrypted connections |
| Performance Characteristics | Indexes are used to find rows with specific column values quickly. | In-memory data storage for fast read and write operations, up to 87% faster commands, up to 2x more operations per second throughput, up to 18% faster replication, sustains 66,000 vector insertions per second with 95% precision or 160,000 vector insertions per second at lower precision for vector search |
| Price | Not available | Not available |
| Ratings | overall: Not available, performance: Not available | Performance: Up to 87% faster commands and up to 2x more operations per second throughput. |
| Pros | Scales vertically and horizontally, ACID compliant, Supports master-slave and multi-master replication, Supports complex transactions, Large and active community, Includes authentication plugins, role-based access control, SSL/TLS encryption, and data masking features | Up to 87% faster commands and up to 2x more operations per second throughput, Up to 18% faster replication, Sustains 66,000 vector insertions per second with 95% precision or 160,000 vector insertions per second at lower precision for vector search, Redis Cluster provides automatic partitioning, Different levels of on-disk persistence supported, Improved replication and more efficient AOF-based recovery, Open-source client libraries for various languages, Redis Data Integration (RDI) helps synchronize data between existing databases and Redis, Redis Flex reduces the cost of Redis deployments by up to 80% while maintaining performance, Available under multiple licenses, including AGPLv3 (OSI-approved open source), Supports Access Control Lists (ACLs) for fine-grained control over user permissions, Supports password authentication and TLS for encrypted connections, Strong community and comprehensive documentation, Flexible data modeling patterns, Redis Data Integration (RDI) facilitates data synchronization and migration |
| Cons | Specific performance benchmarks for read and write operations under high load were not found, Downgrading from MySQL 8.3 to MySQL 8.2, or from a MySQL 8.3 release to a previous MySQL 8.3 release, is not supported, When using some storage engines other than the default of InnoDB, MySQL does not comply with the full SQL standard for some of the implemented functionality, including foreign key references. | Not strictly ACID compliant, Transactions not supported across multiple shards, Data size is limited by available memory, Potential data loss if persistence is not configured, Eventual consistency in distributed setups |
| User Feedback (Positive) | Ensures data consistency through ACID compliance, Offers several backup methods, including logical backups (using `mysqldump`) and physical backups, Supports point-in-time recovery using the binary log, Adopts MySQL's data and table definition files and also uses identical client protocols, client APIs, ports, and sockets | Not available |
| User Feedback (Negative) | Not available | Not available |
| User Feedback (Value) | Not available | Not available |
| User Feedback (Quotes) | Not available | Not available |