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DBMS > KeyDB vs. Machbase Neo vs. SwayDB vs. VoltDB vs. XTDB

System Properties Comparison KeyDB vs. Machbase Neo vs. SwayDB vs. VoltDB vs. XTDB

Editorial information provided by DB-Engines
NameKeyDB  Xexclude from comparisonMachbase Neo infoFormer name was Infiniflux  Xexclude from comparisonSwayDB  Xexclude from comparisonVoltDB  Xexclude from comparisonXTDB infoformerly named Crux  Xexclude from comparison
DescriptionAn ultra-fast, open source Key-value store fully compatible with Redis API, modules, and protocolsTimeSeries DBMS for AIoT and BigDataAn embeddable, non-blocking, type-safe key-value store for single or multiple disks and in-memory storageDistributed In-Memory NewSQL RDBMS infoUsed for OLTP applications with a high frequency of relatively simple transactions, that can hold all their data in memoryA general purpose database with bitemporal SQL and Datalog and graph queries
Primary database modelKey-value storeTime Series DBMSKey-value storeRelational DBMSDocument store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.70
Rank#229  Overall
#32  Key-value stores
Score0.17
Rank#337  Overall
#30  Time Series DBMS
Score0.04
Rank#387  Overall
#61  Key-value stores
Score1.47
Rank#157  Overall
#73  Relational DBMS
Score0.18
Rank#332  Overall
#46  Document stores
Websitegithub.com/­Snapchat/­KeyDB
keydb.dev
machbase.comswaydb.simer.auwww.voltdb.comgithub.com/­xtdb/­xtdb
www.xtdb.com
Technical documentationdocs.keydb.devmachbase.com/­dbmsdocs.voltdb.comwww.xtdb.com/­docs
DeveloperEQ Alpha Technology Ltd.MachbaseSimer PlahaVoltDB Inc.Juxt Ltd.
Initial release20192013201820102019
Current releaseV8.0, August 202311.3, April 20221.19, September 2021
License infoCommercial or Open SourceOpen Source infoBSD-3commercial infofree test version availableOpen Source infoGNU Affero GPL V3.0Open Source infoAGPL for Community Edition, commercial license for Enterprise, AWS, and Pro EditionsOpen Source infoMIT License
Cloud-based only infoOnly available as a cloud servicenonononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageC++CScalaJava, C++Clojure
Server operating systemsLinuxLinux
macOS
Windows
Linux
OS X infofor development
All OS with a Java 8 (and higher) VM
Linux
Data schemeschema-freeyesschema-freeyesschema-free
Typing infopredefined data types such as float or datepartial infoSupported data types are strings, hashes, lists, sets and sorted sets, bit arrays, hyperloglogs and geospatial indexesyesnoyesyes, extensible-data-notation format
XML support infoSome form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.nononono
Secondary indexesyes infoby using the Redis Search moduleyesnoyesyes
SQL infoSupport of SQLnoSQL-like query languagenoyes infoonly a subset of SQL 99limited SQL, making use of Apache Calcite
APIs and other access methodsProprietary protocol infoRESP - REdis Serialization ProtocogRPC
HTTP REST
JDBC
MQTT (Message Queue Telemetry Transport)
ODBC
Java API
JDBC
RESTful HTTP/JSON API
HTTP REST
JDBC
Supported programming languagesC
C#
C++
Clojure
Crystal
D
Dart
Elixir
Erlang
Fancy
Go
Haskell
Haxe
Java
JavaScript (Node.js)
Lisp
Lua
MatLab
Objective-C
OCaml
Pascal
Perl
PHP
Prolog
Pure Data
Python
R
Rebol
Ruby
Rust
Scala
Scheme
Smalltalk
Swift
Tcl
Visual Basic
C
C#
C++
Go
Java
JavaScript
PHP infovia ODBC
Python
R infovia ODBC
Scala
Java
Kotlin
Scala
C#
C++
Erlang infonot officially supported
Go
Java
JavaScript infoNode.js
PHP
Python
Clojure
Java
Server-side scripts infoStored proceduresLuanonoJavano
Triggersnonononono
Partitioning methods infoMethods for storing different data on different nodesShardingShardingnoneShardingnone
Replication methods infoMethods for redundantly storing data on multiple nodesMulti-source replication
Source-replica replication
selectable replication factornoneMulti-source replication
Source-replica replication
yes, each node contains all data
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonononono
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency
Strong eventual consistency with CRDTs
Immediate Consistency
Foreign keys infoReferential integritynononono infoFOREIGN KEY constraints are not supportedno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataOptimistic locking, atomic execution of commands blocks and scriptsnoAtomic execution of operationsACID infoTransactions are executed single-threaded within stored proceduresACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes infoData access is serialized by the serveryes
Durability infoSupport for making data persistentyes infoConfigurable mechanisms for persistency via snapshots and/or operations logsnoyesyes infoSnapshots and command loggingyes, flexibel persistency by using storage technologies like Apache Kafka, RocksDB or LMDB
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyes infovolatile and lookup tableyes
User concepts infoAccess controlsimple password-based access control and ACLsimple password-based access controlnoUsers and roles with access to stored procedures

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More resources
KeyDBMachbase Neo infoFormer name was InfinifluxSwayDBVoltDBXTDB infoformerly named Crux
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