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DBMS > EJDB vs. OpenTSDB vs. Prometheus vs. Sequoiadb

System Properties Comparison EJDB vs. OpenTSDB vs. Prometheus vs. Sequoiadb

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Editorial information provided by DB-Engines
NameEJDB  Xexclude from comparisonOpenTSDB  Xexclude from comparisonPrometheus  Xexclude from comparisonSequoiadb  Xexclude from comparison
DescriptionEmbeddable document-store database library with JSON representation of queries (in MongoDB style)Scalable Time Series DBMS based on HBaseOpen-source TimeSeries DBMS and monitoring systemNewSQL database with distributed OLTP and SQL
Primary database modelDocument storeTime Series DBMSTime Series DBMSDocument store
Relational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.21
Rank#255  Overall
#35  Document stores
Score2.14
Rank#110  Overall
#6  Time Series DBMS
Score4.01
Rank#73  Overall
#3  Time Series DBMS
Score0.27
Rank#246  Overall
#34  Document stores
#114  Relational DBMS
Websiteejdb.orgopentsdb.netprometheus.iowww.sequoiadb.com
Technical documentationgithub.com/­Softmotions/­ejdb/­blob/­master/­README.mdopentsdb.net/­docs/­build/­html/­index.htmlprometheus.io/­docswww.sequoiadb.com/­en/­index.php?m=Files&a=index
DeveloperSoftmotionscurrently maintained by Yahoo and other contributorsSequoiadb Ltd.
Initial release2012201120152013
License infoCommercial or Open SourceOpen Source infoGPLv2Open Source infoLGPLOpen Source infoApache 2.0Open Source infoServer: AGPL; Client: Apache V2
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageCJavaGoC++
Server operating systemsserver-lessLinux
Windows
Linux
Windows
Linux
Data schemeschema-freeschema-freeyesschema-free
Typing infopredefined data types such as float or dateyes infostring, integer, double, bool, date, object_idnumeric data for metrics, strings for tagsNumeric data onlyyes infooid, date, timestamp, binary, regex
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 infoImport of XML data possibleno
Secondary indexesnononoyes
SQL infoSupport of SQLnononoSQL-like query language
APIs and other access methodsin-process shared libraryHTTP API
Telnet API
RESTful HTTP/JSON APIproprietary protocol using JSON
Supported programming languagesActionscript
C
C#
C++
Go
Java
JavaScript (Node.js)
Lua
Objective-C
Pike
Python
Ruby
Erlang
Go
Java
Python
R
Ruby
.Net
C++
Go
Haskell
Java
JavaScript (Node.js)
Python
Ruby
.Net
C++
Java
PHP
Python
Server-side scripts infoStored proceduresnononoJavaScript
Triggersnononono
Partitioning methods infoMethods for storing different data on different nodesnoneSharding infobased on HBaseShardingSharding
Replication methods infoMethods for redundantly storing data on multiple nodesnoneselectable replication factor infobased on HBaseyes infoby FederationMaster-slave replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate Consistency infobased on HBasenoneEventual Consistency
Foreign keys infoReferential integrityno infotypically not needed, however similar functionality with collection joins possiblenonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanononoDocument is locked during a transaction
Concurrency infoSupport for concurrent manipulation of datayes infoRead/Write Lockingyesyesyes
Durability infoSupport for making data persistentyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.nonono
User concepts infoAccess controlnononosimple password-based access control

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More resources
EJDBOpenTSDBPrometheusSequoiadb
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