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DBMS > BoltDB vs. Druid vs. Heroic

System Properties Comparison BoltDB vs. Druid vs. Heroic

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Editorial information provided by DB-Engines
NameBoltDB  Xexclude from comparisonDruid  Xexclude from comparisonHeroic  Xexclude from comparison
DescriptionAn embedded key-value store for Go.Open-source analytics data store designed for OLAP queries on timeseries dataTime Series DBMS built at Spotify based on Cassandra or Google Cloud Bigtable, and ElasticSearch
Primary database modelKey-value storeRelational DBMS
Time Series DBMS
Time Series DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.48
Rank#208  Overall
#35  Key-value stores
Score1.83
Rank#115  Overall
#57  Relational DBMS
#7  Time Series DBMS
Score0.19
Rank#254  Overall
#17  Time Series DBMS
Websitegithub.com/­boltdb/­boltdruid.apache.orgspotify.github.io/­heroic/­#!/­index
Technical documentationdruid.apache.org/­docs/­latest/­designspotify.github.io/­heroic/­#!/­docs/­overview
DeveloperMetamarkets Group and contributorsSpotify
Initial release201320122014
License infoCommercial or Open SourceOpen Source infoMIT LicenseOpen Source infoApache license v2Open Source infoApache 2.0
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 languageGoJavaJava
Server operating systemsBSD
Linux
OS X
Solaris
Windows
Linux
OS X
Unix
Data schemeschema-freeyes infoschema-less columns are supportedschema-free
Typing infopredefined data types such as float or datenoyesyes
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 indexesnoyesyes infovia Elasticsearch
SQL infoSupport of SQLnoSQL support via Apache Calcite adapterno
APIs and other access methodsJSON over HTTPHQL (Heroic Query Language, a JSON-based language)
HTTP API
Supported programming languagesGoClojure
JavaScript
PHP
Python
R
Ruby
Scala
Server-side scripts infoStored proceduresnonono
Triggersnonono
Partitioning methods infoMethods for storing different data on different nodesnoneShardingSharding
Replication methods infoMethods for redundantly storing data on multiple nodesnoneyes, via HDFS, S3 or other storage enginesyes
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemnoneImmediate ConsistencyEventual Consistency
Immediate Consistency
Foreign keys infoReferential integritynonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datayesnono
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.nonono
User concepts infoAccess controlnono infoavailable via extensions

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More resources
BoltDBDruidHeroic
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