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DBMS > ClickHouse vs. Elasticsearch vs. Splunk

System Properties Comparison ClickHouse vs. Elasticsearch vs. Splunk

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Editorial information provided by DB-Engines
NameClickHouse  Xexclude from comparisonElasticsearch  Xexclude from comparisonSplunk  Xexclude from comparison
DescriptionColumn-oriented Relational DBMS powering YandexA distributed, RESTful modern search and analytics engine based on Apache Lucene infoElasticsearch lets you perform and combine many types of searches such as structured, unstructured, geo, and metricAnalytics Platform for Big Data
Primary database modelRelational DBMSSearch engineSearch engine
Secondary database modelsTime Series DBMSDocument store
Spatial DBMS
Vector DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score14.97
Rank#44  Overall
#28  Relational DBMS
Score143.75
Rank#8  Overall
#1  Search engines
Score89.45
Rank#14  Overall
#2  Search engines
Websiteclickhouse.techwww.elastic.co/­elasticsearchwww.splunk.com
Technical documentationclickhouse.tech/­docswww.elastic.co/­guide/­en/­elasticsearch/­reference/­current/­index.htmldocs.splunk.com/­Documentation/­Splunk
DeveloperClickhouse Inc.ElasticSplunk Inc.
Initial release201620102003
Current releasev23.4.1.1943-stable, April 20238.6, January 2023
License infoCommercial or Open SourceOpen Source infoApache 2.0Open Source infoElastic Licensecommercial infoLimited free edition and free developer edition available
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageC++Java
Server operating systemsFreeBSD
Linux
macOS
All OS with a Java VMLinux
OS X
Solaris
Windows
Data schemeyesschema-free infoFlexible type definitions. Once a type is defined, it is persistentyes
Typing infopredefined data types such as float or dateyesyesyes
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.nonoyes
Secondary indexesyes, when using the MergeTree engineyes infoAll search fields are automatically indexedyes
SQL infoSupport of SQLClose to ANSI SQLSQL-like query languageno infoSplunk Search Processing Language for search commands
APIs and other access methodsHTTP REST
JDBC
ODBC
Proprietary protocol
Java API
RESTful HTTP/JSON API
HTTP REST
Supported programming languagesC# info3rd party library
C++
Elixir info3rd party library
Go info3rd party library
Java info3rd party library
JavaScript (Node.js) info3rd party library
Kotlin info3rd party library
Nim info3rd party library
Perl info3rd party library
PHP info3rd party library
Python info3rd party library
R info3rd party library
Ruby info3rd party library
Scala info3rd party library
.Net
Groovy
Community Contributed Clients
Java
JavaScript
Perl
PHP
Python
Ruby
C#
Java
JavaScript
PHP
Python
Ruby
Server-side scripts infoStored proceduresnoyesyes
Triggersnoyes infoby using the 'percolation' featureyes
Partitioning methods infoMethods for storing different data on different nodesShardingSharding
Replication methods infoMethods for redundantly storing data on multiple nodesyesMulti-source replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoES-Hadoop Connectoryes
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyEventual Consistency infoSynchronous doc based replication. Get by ID may show delays up to 1 sec. Configurable write consistency: one, quorum, allEventual Consistency
Foreign keys infoReferential integritynonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanonono infoA 'Transaction' in Splunk has a different meaning: grouping related events into a single one for later searching
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesMemcached and Redis integrationno
User concepts infoAccess controlAccess rights for users and rolesAccess rights for users and roles

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More resources
ClickHouseElasticsearchSplunk
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Recent citations in the news

ClickHouse launches ClickHouse Cloud, extends its Series B
6 December 2022, TechCrunch

Aiven launches managed ClickHouse database as a service
13 December 2022, TechTarget

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9 May 2023, The Register

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14 April 2023, Startup.info

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