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DBMS > Apache Druid vs. Crux vs. STSdb

System Properties Comparison Apache Druid vs. Crux vs. STSdb

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Editorial information provided by DB-Engines
NameApache Druid  Xexclude from comparisonCrux  Xexclude from comparisonSTSdb  Xexclude from comparison
DescriptionOpen-source analytics data store designed for sub-second OLAP queries on high dimensionality and high cardinality dataCrux is a general purpose database with bitemporal SQL and Datalog and graph queriesKey-Value Store with special method for indexing infooptimized for high performance using a special indexing method
Primary database modelRelational DBMS
Time Series DBMS
Document storeKey-value store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score3.27
Rank#93  Overall
#48  Relational DBMS
#6  Time Series DBMS
Score0.04
Rank#333  Overall
#45  Document stores
Score0.16
Rank#298  Overall
#44  Key-value stores
Websitedruid.apache.orggithub.com/­juxt/­crux
opencrux.com
github.com/­STSSoft/­STSdb4
Technical documentationdruid.apache.org/­docs/­latest/­designopencrux.com/­reference/­installation.html
DeveloperApache Software Foundation and contributorsJuxt Ltd.STS Soft SC
Initial release201220192011
Current release0.21.0, April 20211.12.1, September 20204.0.8, September 2015
License infoCommercial or Open SourceOpen Source infoApache license v2Open Source infoMIT LicenseOpen Source infoGPLv2, commercial license available
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaClojureC#
Server operating systemsLinux
OS X
Unix
All OS with a Java 8 (and higher) VM
Linux
Windows
Data schemeyes infoschema-less columns are supportedschema-freeyes
Typing infopredefined data types such as float or dateyesyes, extensible-data-notation formatyes infoprimitive types and user defined types (classes)
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.nono
Secondary indexesyesyesno
SQL infoSupport of SQLSQL for queryinglimited SQL, making use of Apache Calciteno
APIs and other access methodsJDBC
RESTful HTTP/JSON API
HTTP REST
JDBC
.NET Client API
Supported programming languagesClojure
JavaScript
PHP
Python
R
Ruby
Scala
Clojure
Java
C#
Java
Server-side scripts infoStored proceduresnonono
Triggersnonono
Partitioning methods infoMethods for storing different data on different nodesSharding infomanual/auto, time-basednonenone
Replication methods infoMethods for redundantly storing data on multiple nodesyes, via HDFS, S3 or other storage enginesyes, each node contains all datanone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate Consistency
Foreign keys infoReferential integritynonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoACIDno
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyes, flexibel persistency by using storage technologies like Apache Kafka, RocksDB or LMDByes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.no
User concepts infoAccess controlRBAC using LDAP or Druid internals for users and groups for read/write by datasource and systemno

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More resources
Apache DruidCruxSTSdb
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