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DBMS > KairosDB vs. LMDB vs. OrientDB vs. searchxml vs. XTDB

System Properties Comparison KairosDB vs. LMDB vs. OrientDB vs. searchxml vs. XTDB

Editorial information provided by DB-Engines
NameKairosDB  Xexclude from comparisonLMDB  Xexclude from comparisonOrientDB  Xexclude from comparisonsearchxml  Xexclude from comparisonXTDB infoformerly named Crux  Xexclude from comparison
DescriptionDistributed Time Series DBMS based on Cassandra or H2A high performant, light-weight, embedded key-value database libraryMulti-model DBMS (Document, Graph, Key/Value)DBMS for structured and unstructured content wrapped with an application serverA general purpose database with bitemporal SQL and Datalog and graph queries
Primary database modelTime Series DBMSKey-value storeDocument store
Graph DBMS
Key-value store
Native XML DBMS
Search engine
Document store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.67
Rank#233  Overall
#20  Time Series DBMS
Score2.09
Rank#121  Overall
#20  Key-value stores
Score3.25
Rank#89  Overall
#16  Document stores
#6  Graph DBMS
#13  Key-value stores
Score0.03
Rank#390  Overall
#7  Native XML DBMS
#24  Search engines
Score0.18
Rank#332  Overall
#46  Document stores
Websitegithub.com/­kairosdb/­kairosdbwww.symas.com/­symas-embedded-database-lmdborientdb.orgwww.searchxml.net/­category/­productsgithub.com/­xtdb/­xtdb
www.xtdb.com
Technical documentationkairosdb.github.iowww.lmdb.tech/­docwww.orientdb.com/­docs/­last/­index.htmlwww.searchxml.net/­support/­handoutswww.xtdb.com/­docs
DeveloperSymasOrientDB LTD; CallidusCloud; SAPinformationpartners gmbhJuxt Ltd.
Initial release20132011201020152019
Current release1.2.2, November 20180.9.32, January 20243.2.29, March 20241.01.19, September 2021
License infoCommercial or Open SourceOpen Source infoApache 2.0Open SourceOpen Source infoApache version 2commercialOpen 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 languageJavaCJavaC++Clojure
Server operating systemsLinux
OS X
Windows
Linux
Unix
Windows
All OS with a Java JDK (>= JDK 6)WindowsAll OS with a Java 8 (and higher) VM
Linux
Data schemeschema-freeschema-freeschema-free infoSchema can be enforced for whole record ("schema-full") or for some fields only ("schema-hybrid")schema-freeschema-free
Typing infopredefined data types such as float or dateyesyesyesyes, 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.nononoyesno
Secondary indexesnonoyesyesyes
SQL infoSupport of SQLnonoSQL-like query language, no joinsnolimited SQL, making use of Apache Calcite
APIs and other access methodsGraphite protocol
HTTP REST
Telnet API
Tinkerpop technology stack with Blueprints, Gremlin, Pipes
Java API
RESTful HTTP/JSON API
RESTful HTTP API
WebDAV
XQuery
XSLT
HTTP REST
JDBC
Supported programming languagesJava
JavaScript infoNode.js
PHP
Python
.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
.Net
C
C#
C++
Clojure
Java
JavaScript
JavaScript (Node.js)
PHP
Python
Ruby
Scala
C++ infomost other programming languages supported via APIsClojure
Java
Server-side scripts infoStored proceduresnonoJava, Javascriptyes infoon the application serverno
TriggersnonoHooksnono
Partitioning methods infoMethods for storing different data on different nodesSharding infobased on CassandranoneShardingnonenone
Replication methods infoMethods for redundantly storing data on multiple nodesselectable replication factor infobased on CassandranoneMulti-source replicationyes infosychronisation to multiple collectionsyes, each node contains all data
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono infocould be achieved with distributed queriesnono
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency infobased on Cassandra
Immediate Consistency infobased on Cassandra
Immediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynonoyes inforelationship in graphsnono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoACIDACIDmultiple readers, single writerACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyesyes
Durability infoSupport for making data persistentyesyesyesyesyes, 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.noyesno
User concepts infoAccess controlsimple password-based access controlnoAccess rights for users and roles; record level security configurableDomain, group and role-based access control at the document level and for application services

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More resources
KairosDBLMDBOrientDBsearchxmlXTDB infoformerly named Crux
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