Streams in Redis
A Redis stream is a data structure that acts like an append-only log but also implements several operations to overcome some of the limits of a typical append-only log. These include random access in O(1) time and complex consumption strategies, such as consumer groups.
Basic Commands used in Streams in Redis
- XADD – This command will add an element into the Stream.
- XREAD – This command will read one or more entries.
- XRANGE – This command returns entries within a range.
- XLEN – This command will return the length of the Stream.
How Redis Stores Streams Data Types?
- Streams are implemented as an append-only log.
- Each stream has a unique key and consists of a sequence of entries with unique IDs.
- Streams are used for event-driven and log-based data storage and processing.
Complete Guide on Redis Data Types with Commands and Storage
Redis is an open-source, in-memory data store that supports various data types: such as String, Sets, Lists, Hashes, etc. to store data according to the needs of the user. These diverse data types make Redis versatile for caching, messaging, real-time analytics, and more.
Different Data Types in Redis
- 1. String Data Type in Redis
- 2. Hash Data type in Redis
- 3. List Data Type in Redis
- 4. Set Data type in Redis:
- 5. Sorted Set in Redis:
- 6. Streams in Redis:
- 7. HyperLogLog in Redis:
- 8. Bitmaps in Redis:
- 9. Bitfields in Redis
- 10. Probabilistic in Redis:
- 11. Geospatial Indexes in Redis:
- 12. Time-Series in Redis