DBMS > Redis vs. RocksDB vs. VoltDB
System Properties Comparison Redis vs. RocksDB vs. VoltDB
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|Editorial information provided by DB-Engines|
|Name||Redis Xexclude from comparison||RocksDB Xexclude from comparison||VoltDB Xexclude from comparison|
|Description||Popular in-memory data platform used as a cache, message broker, and database that can be deployed on-premises, across clouds, and hybrid environments Redis focuses on performance so most of its design decisions prioritize high performance and very low latencies.||Embeddable persistent key-value store optimized for fast storage (flash and RAM)||Distributed In-Memory NewSQL RDBMS Used for OLTP applications with a high frequency of relatively simple transactions, that can hold all their data in memory|
|Primary database model||Key-value store Multiple data types and a rich set of operations, as well as configurable data expiration, eviction and persistence||Key-value store||Relational DBMS|
|Secondary database models||Document store with RedisJSON|
Graph DBMS with RedisGraph
Search engine with RediSearch
Time Series DBMS with RedisTimeSeries
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|Developer||Redis project core team, inspired by Salvatore Sanfilippo Development sponsored by Redis Inc.||Facebook, Inc.||VoltDB Inc.|
|Current release||7.2.1, September 2023||8.5.4, September 2023||11.3, April 2022|
|License Commercial or Open Source||Open Source source-available extensions (modules), commercial licenses for Redis Enterprise||Open Source BSD||Open Source AGPL for Community Edition, commercial license for Enterprise, AWS, and Pro Editions|
|Cloud-based only Only available as a cloud service||no||no||no|
|DBaaS offerings (sponsored links) Database as a Service|
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|Implementation language||C||C++||Java, C++|
|Server operating systems||BSD|
Windows ported and maintained by Microsoft Open Technologies, Inc.
OS X for development
|Typing predefined data types such as float or date||partial Supported data types are strings, hashes, lists, sets and sorted sets, bit arrays, hyperloglogs and geospatial indexes||no||yes|
|XML support Some form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.||no||no|
|Secondary indexes||yes with RediSearch module||no||yes|
|SQL Support of SQL||no||no||yes only a subset of SQL 99|
|APIs and other access methods||proprietary protocol RESP - REdis Serialization Protocol||C++ API|
RESTful HTTP/JSON API
|Supported programming languages||C|
Erlang not officially supported
|Server-side scripts Stored procedures||Lua; Redis Functions coming in Redis 7 (slides and Github)||no||Java|
|Triggers||publish/subscribe channels provide some trigger functionality; RedisGears||no|
|Partitioning methods Methods for storing different data on different nodes||Sharding Automatic hash-based sharding with support for hash-tags for manual sharding||horizontal partitioning||Sharding|
|Replication methods Methods for redundantly storing data on multiple nodes||Multi-source replication with Redis Enterprise Pack|
Source-replica replication Chained replication is supported
|MapReduce Offers an API for user-defined Map/Reduce methods||through RedisGears||no||no|
|Consistency concepts Methods to ensure consistency in a distributed system||Eventual Consistency|
Causal consistency can be enabled in Active-Active databases
Strong consistency with Redis Raft
Strong eventual consistency with Active-Active
|Foreign keys Referential integrity||no||no||no FOREIGN KEY constraints are not supported|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||Atomic execution of command blocks and scripts and optimistic locking||yes||ACID Transactions are executed single-threaded within stored procedures|
|Concurrency Support for concurrent manipulation of data||yes Data access is serialized by the server||yes||yes Data access is serialized by the server|
|Durability Support for making data persistent||yes Configurable mechanisms for persistency via snapshots and/or operations logs||yes||yes Snapshots and command logging|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||yes||yes|
|User concepts Access control||Access Control Lists (ACLs): redis.io/docs/management/security/acl|
LDAP and Role-Based Access Control (RBAC) for Redis Enterprise
Mutual TLS authentication: redis.io/docs/management/security/encryption
|no||Users and roles with access to stored procedures|
|More information provided by the system vendor|
|Specific characteristics||The Redis real-time data platform builds upon the unmatched simplicity and speed...|
|Competitive advantages||Redis Enterprise is a robust in-memory database platform built by the people who...|
|Typical application scenarios||Redis Enterprise is used by large enterprise, startup, and government organizations...|
|Key customers||Verizon, Vodafone, Atlassian, Trip Advisor, Jet.com, Nokia, Samsung, HTC, Docker,...|
|Market metrics||Most launched Docker container per day according to Docker Hub (7.2M launches per...|
|Licensing and pricing models||Redis Enterprise Cloud lets users scale up and down instantly, and pay only for the...|
We invite representatives of system vendors to contact us for updating and extending the system information,
|Related products and services|
|3rd parties||Redisson PRO: The ultra-fast Redis Java Client.|
Aiven for Redis: Fully managed in-memory key-value store for all your caching and speedy lookup needs.
Navicat for Redis: the award-winning Redis management tool with an intuitive and powerful graphical interface.
CData: Connect to Big Data & NoSQL through standard Drivers.
Read the Redis NoSQL benchmark report.
|Speedb: A high performance RocksDB-compliant key-value store optimized for write-intensive workloads.|
We invite representatives of vendors of related products to contact us for presenting information about their offerings here.
|DB-Engines blog posts|
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