DBMS > Redis vs. VoltDB
System Properties Comparison Redis vs. VoltDB
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|Editorial information provided by DB-Engines|
|Name||Redis 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.||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||Relational DBMS|
|Secondary database models||Document store with RedisJSON|
Graph DBMS with RedisGraph
Search engine with RediSearch
Time Series DBMS with RedisTimeSeries
|Social network pages|
|Developer||Redis project core team, inspired by Salvatore Sanfilippo Development sponsored by Redis Inc.||VoltDB Inc.|
|Current release||7.0.11, April 2023||11.3, April 2022|
|License Commercial or Open Source||Open Source source-available extensions (modules), commercial licenses for Redis Enterprise||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|
|DBaaS offerings (sponsored links) Database as a Service|
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|Implementation language||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||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|
|Secondary indexes||yes with RediSearch module||yes|
|SQL Support of SQL||no||yes only a subset of SQL 99|
|APIs and other access methods||proprietary protocol RESP - REdis Serialization Protocol||Java 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)||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||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|
|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 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||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 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 Snapshots and command logging|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||yes|
|User concepts Access control||Access Control Lists (ACLs): redis.io/topics/acl|
LDAP and Role-Based Access Control (RBAC) for Redis Enterprise
Mutual TLS authentication: redis.io/topics/encryption
|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||Read the Redis NoSQL benchmark report.|
CData: Connect to Big Data & NoSQL through standard Drivers.
Aiven for Redis: Store and access your data quickly and efficiently.
Redisson PRO: The ultra-fast Redis Java Client.
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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MySQL, PostgreSQL and Redis are the winners of the March ranking MongoDB is the DBMS of the year, defending the title from last year
MongoDB is the DBMS of the year, defending the title from last year
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