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DBMS > Apache Druid vs. OpenTSDB vs. Realm vs. searchxml vs. STSdb

System Properties Comparison Apache Druid vs. OpenTSDB vs. Realm vs. searchxml vs. STSdb

Editorial information provided by DB-Engines
NameApache Druid  Xexclude from comparisonOpenTSDB  Xexclude from comparisonRealm  Xexclude from comparisonsearchxml  Xexclude from comparisonSTSdb  Xexclude from comparison
DescriptionOpen-source analytics data store designed for sub-second OLAP queries on high dimensionality and high cardinality dataScalable Time Series DBMS based on HBaseA DBMS built for use on mobile devices that’s a fast, easy to use alternative to SQLite and Core DataDBMS for structured and unstructured content wrapped with an application serverKey-Value Store with special method for indexing infooptimized for high performance using a special indexing method
Primary database modelRelational DBMS
Time Series DBMS
Time Series DBMSDocument storeNative XML DBMS
Search engine
Key-value store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score3.25
Rank#90  Overall
#47  Relational DBMS
#7  Time Series DBMS
Score1.68
Rank#142  Overall
#12  Time Series DBMS
Score7.41
Rank#52  Overall
#8  Document stores
Score0.03
Rank#390  Overall
#7  Native XML DBMS
#24  Search engines
Score0.10
Rank#357  Overall
#51  Key-value stores
Websitedruid.apache.orgopentsdb.netrealm.iowww.searchxml.net/­category/­productsgithub.com/­STSSoft/­STSdb4
Technical documentationdruid.apache.org/­docs/­latest/­designopentsdb.net/­docs/­build/­html/­index.htmlrealm.io/­docswww.searchxml.net/­support/­handouts
DeveloperApache Software Foundation and contributorscurrently maintained by Yahoo and other contributorsRealm, acquired by MongoDB in May 2019informationpartners gmbhSTS Soft SC
Initial release20122011201420152011
Current release29.0.1, April 20241.04.0.8, September 2015
License infoCommercial or Open SourceOpen Source infoApache license v2Open Source infoLGPLOpen SourcecommercialOpen Source infoGPLv2, commercial license available
Cloud-based only infoOnly available as a cloud servicenonononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaJavaC++C#
Server operating systemsLinux
OS X
Unix
Linux
Windows
Android
Backend: server-less
iOS
Windows
WindowsWindows
Data schemeyes infoschema-less columns are supportedschema-freeyesschema-freeyes
Typing infopredefined data types such as float or dateyesnumeric data for metrics, strings for tagsyesyesyes 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.nononoyes
Secondary indexesyesnoyesyesno
SQL infoSupport of SQLSQL for queryingnononono
APIs and other access methodsJDBC
RESTful HTTP/JSON API
HTTP API
Telnet API
RESTful HTTP API
WebDAV
XQuery
XSLT
.NET Client API
Supported programming languagesClojure
JavaScript
PHP
Python
R
Ruby
Scala
Erlang
Go
Java
Python
R
Ruby
.Net
Java infowith Android only
Objective-C
React Native
Swift
C++ infomost other programming languages supported via APIsC#
Java
Server-side scripts infoStored proceduresnonono inforuns within the applications so server-side scripts are unnecessaryyes infoon the application serverno
Triggersnonoyes infoChange Listenersnono
Partitioning methods infoMethods for storing different data on different nodesSharding infomanual/auto, time-basedSharding infobased on HBasenonenonenone
Replication methods infoMethods for redundantly storing data on multiple nodesyes, via HDFS, S3 or other storage enginesselectable replication factor infobased on HBasenoneyes infosychronisation to multiple collectionsnone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonononono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate Consistency infobased on HBaseImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynonononono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanonoACIDmultiple readers, single writerno
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyesyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.nonoyes infoIn-Memory realmno
User concepts infoAccess controlRBAC using LDAP or Druid internals for users and groups for read/write by datasource and systemnoyesDomain, group and role-based access control at the document level and for application servicesno

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More resources
Apache DruidOpenTSDBRealmsearchxmlSTSdb
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