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DBMS > OpenTSDB vs. Oracle Coherence vs. PouchDB

System Properties Comparison OpenTSDB vs. Oracle Coherence vs. PouchDB

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Editorial information provided by DB-Engines
NameOpenTSDB  Xexclude from comparisonOracle Coherence  Xexclude from comparisonPouchDB  Xexclude from comparison
DescriptionScalable Time Series DBMS based on HBaseOracles in-memory data grid solutionJavaScript DBMS with an API inspired by CouchDB
Primary database modelTime Series DBMSKey-value storeDocument store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.68
Rank#146  Overall
#12  Time Series DBMS
Score1.92
Rank#130  Overall
#22  Key-value stores
Score2.28
Rank#115  Overall
#21  Document stores
Websiteopentsdb.netwww.oracle.com/­java/­coherencepouchdb.com
Technical documentationopentsdb.net/­docs/­build/­html/­index.htmldocs.oracle.com/­en/­middleware/­standalone/­coherencepouchdb.com/­guides
Developercurrently maintained by Yahoo and other contributorsOracleApache Software Foundation
Initial release201120072012
Current release14.1, August 20237.1.1, June 2019
License infoCommercial or Open SourceOpen Source infoLGPLcommercialOpen Source
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaJavaJavaScript
Server operating systemsLinux
Windows
All OS with a Java VMserver-less, requires a JavaScript environment (browser, Node.js)
Data schemeschema-freeschema-freeschema-free
Typing infopredefined data types such as float or datenumeric data for metrics, strings for tagsyesno
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.nonono
Secondary indexesnonoyes infovia views
SQL infoSupport of SQLnonono
APIs and other access methodsHTTP API
Telnet API
JCache
JPA
RESTful HTTP API
HTTP REST infoonly for PouchDB Server
JavaScript API
Supported programming languagesErlang
Go
Java
Python
R
Ruby
.Net
C++
Java
JavaScript
Server-side scripts infoStored proceduresnonoView functions in JavaScript
Triggersnoyes infoLive Eventsyes
Partitioning methods infoMethods for storing different data on different nodesSharding infobased on HBaseShardingSharding infowith a proxy-based framework, named couchdb-lounge
Replication methods infoMethods for redundantly storing data on multiple nodesselectable replication factor infobased on HBaseyes, with selectable consistency levelMulti-source replication infoalso with CouchDB databases
Source-replica replication infoalso with CouchDB databases
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonoyes
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate Consistency infobased on HBaseEventual Consistency
Immediate Consistency
Eventual Consistency
Foreign keys infoReferential integritynonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoconfigurableno
Concurrency infoSupport for concurrent manipulation of datayesyes
Durability infoSupport for making data persistentyesyes infooptionallyyes infoby using IndexedDB, WebSQL or LevelDB as backend
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyesyes
User concepts infoAccess controlnoauthentification to access the cache via certificates or http basic authenticationno

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More resources
OpenTSDBOracle CoherencePouchDB
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