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DBMS > Blueflood vs. Datomic vs. LevelDB vs. OpenSearch vs. Riak KV

System Properties Comparison Blueflood vs. Datomic vs. LevelDB vs. OpenSearch vs. Riak KV

Editorial information provided by DB-Engines
NameBlueflood  Xexclude from comparisonDatomic  Xexclude from comparisonLevelDB  Xexclude from comparisonOpenSearch  Xexclude from comparisonRiak KV  Xexclude from comparison
DescriptionScalable TimeSeries DBMS based on CassandraDatomic builds on immutable values, supports point-in-time queries and uses 3rd party systems for durabilityEmbeddable fast key-value storage library that provides an ordered mapping from string keys to string valuesA distributed, RESTful search and analytics engine forked from Elasticsearch and based on Apache LuceneDistributed, fault tolerant key-value store
Primary database modelTime Series DBMSRelational DBMSKey-value storeSearch engineKey-value store infowith links between data sets and object tags for the creation of secondary indexes
Secondary database modelsVector DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.06
Rank#352  Overall
#36  Time Series DBMS
Score1.55
Rank#144  Overall
#67  Relational DBMS
Score2.33
Rank#111  Overall
#19  Key-value stores
Score16.31
Rank#36  Overall
#4  Search engines
Score3.84
Rank#76  Overall
#9  Key-value stores
Websiteblueflood.iowww.datomic.comgithub.com/­google/­leveldbgithub.com/­opensearch-project
opensearch.org
Technical documentationgithub.com/­rax-maas/­blueflood/­wikidocs.datomic.comgithub.com/­google/­leveldb/­blob/­main/­doc/­index.mdopensearch.org/­docs/­latestwww.tiot.jp/­riak-docs/­riak/­kv/­latest
DeveloperRackspaceCognitectGoogleAmazon Web ServicesOpenSource, formerly Basho Technologies
Initial release20132012201120212009
Current release1.0.7180, July 20241.23, February 20212.5.0, January 20233.2.0, December 2022
License infoCommercial or Open SourceOpen Source infoApache 2.0commercial infolimited edition freeOpen Source infoBSDOpen Source infoApache Version 2.0Open Source infoApache version 2, commercial enterprise edition
Cloud-based only infoOnly available as a cloud servicenonononono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
STACKIT OpenSearch offers OpenSearch in a managed version in enterprise grade, 100% GDPR-compliant, for a wide range of applications like analytics, website search, offering scalability and fast data access.
Implementation languageJavaJava, ClojureC++JavaErlang
Server operating systemsLinux
OS X
All OS with a Java VMIllumos
Linux
OS X
Windows
All OS with a Java VMLinux
OS X
Data schemepredefined schemeyesschema-freeschema-free infoFlexible type definitions. Once a type is defined, it is persistentschema-free
Typing infopredefined data types such as float or dateyesyesnoyesno
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.nononono
Secondary indexesnoyesnoyes infoAll search fields are automatically indexedrestricted
SQL infoSupport of SQLnononoSQL-like query languageno
APIs and other access methodsHTTP RESTRESTful HTTP APIJava API
RESTful HTTP/JSON API
HTTP API
Native Erlang Interface
Supported programming languagesClojure
Java
C++
Go
Java info3rd party binding
JavaScript (Node.js) info3rd party binding
Python info3rd party binding
Go
Java
JavaScript (Node.js)
PHP
Python
Ruby infoElasticsearch client
C infounofficial client library
C#
C++ infounofficial client library
Clojure infounofficial client library
Dart infounofficial client library
Erlang
Go infounofficial client library
Groovy infounofficial client library
Haskell infounofficial client library
Java
JavaScript infounofficial client library
Lisp infounofficial client library
Perl infounofficial client library
PHP
Python
Ruby
Scala infounofficial client library
Smalltalk infounofficial client library
Server-side scripts infoStored proceduresnoyes infoTransaction FunctionsnoyesErlang
TriggersnoBy using transaction functionsnoyes infoby using the 'percolation' featureyes infopre-commit hooks and post-commit hooks
Partitioning methods infoMethods for storing different data on different nodesSharding infobased on Cassandranone infoBut extensive use of caching in the application peersnoneShardingSharding infono "single point of failure"
Replication methods infoMethods for redundantly storing data on multiple nodesselectable replication factor infobased on Cassandranone infoBut extensive use of caching in the application peersnoneyesselectable replication factor
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononoyes
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency infobased on Cassandra
Immediate Consistency infobased on Cassandra
Immediate ConsistencyImmediate ConsistencyEventual Consistency infoSynchronous doc based replication. Get by ID may show delays up to 1 sec. Configurable write consistency: one, quorum, allEventual Consistency
Foreign keys infoReferential integritynonononono infolinks between data sets can be stored
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoACIDnonono
Concurrency infoSupport for concurrent manipulation of datayesyesyesyesyes
Durability infoSupport for making data persistentyesyes infousing external storage systems (e.g. Cassandra, DynamoDB, PostgreSQL, Couchbase and others)yes infowith automatic compression on writesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyes inforecommended only for testing and development
User concepts infoAccess controlnononoyes, using Riak Security
More information provided by the system vendor
BluefloodDatomicLevelDBOpenSearchRiak KV
Specific characteristicsOpenSearch is a highly scalable and extensible open-source software suite for search,...
» more
Competitive advantagesDistributed as fully open source under Apache License, Version 2.0 (ALv2), OpenSearch...
» more
Typical application scenariosThe OpenSearch platform is used across a broad range of search , analytics, and observability...
» more
Licensing and pricing modelsThe OpenSearch Project offers open source software licensed under Apache License...
» more

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BluefloodDatomicLevelDBOpenSearchRiak KV
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