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DBMS > KeyDB vs. LMDB vs. Percona Server for MySQL vs. Splunk vs. XTDB

System Properties Comparison KeyDB vs. LMDB vs. Percona Server for MySQL vs. Splunk vs. XTDB

Editorial information provided by DB-Engines
NameKeyDB  Xexclude from comparisonLMDB  Xexclude from comparisonPercona Server for MySQL  Xexclude from comparisonSplunk  Xexclude from comparisonXTDB infoformerly named Crux  Xexclude from comparison
DescriptionAn ultra-fast, open source Key-value store fully compatible with Redis API, modules, and protocolsA high performant, light-weight, embedded key-value database libraryEnhanced drop-in replacement for MySQL based on XtraDB or TokuDB storage engines with improved performance and additional diagnostic and management features.Analytics Platform for Big DataA general purpose database with bitemporal SQL and Datalog and graph queries
Primary database modelKey-value storeKey-value storeRelational DBMSSearch engineDocument store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.71
Rank#226  Overall
#33  Key-value stores
Score1.99
Rank#125  Overall
#21  Key-value stores
Score2.03
Rank#122  Overall
#57  Relational DBMS
Score86.45
Rank#14  Overall
#2  Search engines
Score0.11
Rank#343  Overall
#46  Document stores
Websitegithub.com/­Snapchat/­KeyDB
keydb.dev
www.symas.com/­symas-embedded-database-lmdbwww.percona.com/­software/­mysql-database/­percona-serverwww.splunk.comgithub.com/­xtdb/­xtdb
www.xtdb.com
Technical documentationdocs.keydb.devwww.lmdb.tech/­docwww.percona.com/­downloads/­Percona-Server-LATESTdocs.splunk.com/­Documentation/­Splunkwww.xtdb.com/­docs
DeveloperEQ Alpha Technology Ltd.SymasPerconaSplunk Inc.Juxt Ltd.
Initial release20192011200820032019
Current release0.9.32, January 20248.0.36-28, 20241.19, September 2021
License infoCommercial or Open SourceOpen Source infoBSD-3Open SourceOpen Source infoGPL version 2commercial infoLimited free edition and free developer edition availableOpen Source infoMIT License
Cloud-based only infoOnly available as a cloud servicenonononono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageC++CC and C++Clojure
Server operating systemsLinuxLinux
Unix
Windows
LinuxLinux
OS X
Solaris
Windows
All OS with a Java 8 (and higher) VM
Linux
Data schemeschema-freeschema-freeyesyesschema-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 indexesyesyesyes, 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.nonoyesyesno
Secondary indexesyes infoby using the Redis Search modulenoyesyesyes
SQL infoSupport of SQLnonoyesno infoSplunk Search Processing Language for search commandslimited SQL, making use of Apache Calcite
APIs and other access methodsProprietary protocol infoRESP - REdis Serialization ProtocoADO.NET
JDBC
ODBC
HTTP RESTHTTP 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
.Net
C
C++
Clojure
Go
Haskell
Java
JavaScript (Node.js)
Lisp
Lua
MatLab
Nim
Objective C
OCaml
Perl
PHP
Python
R
Ruby
Rust
Swift
Tcl
Ada
C
C#
C++
D
Eiffel
Erlang
Haskell
Java
Objective-C
OCaml
Perl
PHP
Python
Ruby
Scheme
Tcl
C#
Java
JavaScript
PHP
Python
Ruby
Clojure
Java
Server-side scripts infoStored proceduresLuanoyesyesno
Triggersnonoyesyesno
Partitioning methods infoMethods for storing different data on different nodesShardingnoneShardingnone
Replication methods infoMethods for redundantly storing data on multiple nodesMulti-source replication
Source-replica replication
noneMulti-source replication
Source-replica replication
XtraDB Cluster
Multi-source replicationyes, each node contains all data
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononoyesno
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency
Strong eventual consistency with CRDTs
Immediate ConsistencyImmediate ConsistencyEventual Consistency
Foreign keys infoReferential integritynonoyesnono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataOptimistic locking, atomic execution of commands blocks and scriptsACIDACIDno infoA 'Transaction' in Splunk has a different meaning: grouping related events into a single one for later searchingACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyesyes
Durability infoSupport for making data persistentyes infoConfigurable mechanisms for persistency via snapshots and/or operations logsyesyesyesyes, 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.yesyesyesno
User concepts infoAccess controlsimple password-based access control and ACLnoUsers with fine-grained authorization concept infono user groups or rolesAccess rights for users and roles

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More resources
KeyDBLMDBPercona Server for MySQLSplunkXTDB infoformerly named Crux
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