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DBMS > RocksDB vs. Solr

System Properties Comparison RocksDB vs. Solr

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Editorial information provided by DB-Engines
NameRocksDB  Xexclude from comparisonSolr  Xexclude from comparison
DescriptionEmbeddable persistent key-value store optimized for fast storage (flash and RAM)A widely used distributed, scalable search engine based on Apache Lucene
Primary database modelKey-value storeSearch engine
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score3.70
Rank#88  Overall
#14  Key-value stores
Score51.82
Rank#21  Overall
#3  Search engines
Websiterocksdb.orglucene.apache.org/­solr
Technical documentationgithub.com/­facebook/­rocksdb/­wikilucene.apache.org/­solr/­resources.html
DeveloperFacebook, Inc.Apache Software Foundation
Initial release20132006
Current release6.14.5, November 20208.7.0, November 2020
License infoCommercial or Open SourceOpen Source infoBSDOpen Source infoApache Version 2
Cloud-based only infoOnly available as a cloud servicenono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageC++Java
Server operating systemsAll OS with a Java VM inforuns as a servlet in servlet container (e.g. Tomcat, Jetty is included)
Data schemeschema-freeyes infoDynamic Fields enables on-the-fly addition of new fields
Typing infopredefined data types such as float or datenoyes infosupports customizable data types and automatic typing
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.noyes
Secondary indexesnoyes infoAll search fields are automatically indexed
SQL infoSupport of SQLnoSolr Parallel SQL Interface
APIs and other access methodsC++ API
Java API
Java API
RESTful HTTP/JSON API
Supported programming languagesC++
Java
.Net
Erlang
Java
JavaScript
any language that supports sockets and either XML or JSON
Perl
PHP
Python
Ruby
Scala
Server-side scripts infoStored proceduresnoJava plugins
Triggersnoyes infoUser configurable commands triggered on index changes
Partitioning methods infoMethods for storing different data on different nodesnoneSharding
Replication methods infoMethods for redundantly storing data on multiple nodesnoneyes
MapReduce infoOffers an API for user-defined Map/Reduce methodsnospark-solr: github.com/­lucidworks/­spark-solr and streaming expressions to reduce
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency
Foreign keys infoReferential integritynono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datayesoptimistic locking
Concurrency infoSupport for concurrent manipulation of datayesyes
Durability infoSupport for making data persistentyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyes
User concepts infoAccess controlnoyes

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More resources
RocksDBSolr
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Recent citations in the news

Toshiba Memory America Optimizes RocksDB for SSDs
1 August 2019, Business Wire

AMD EPYC vs. Intel Xeon Cascadelake With Facebook's RocksDB Database
17 October 2019, Phoronix

Micron Announces An Open-Source Storage Engine Designed For SSDs, Persistent Memory
27 April 2020, Phoronix

Toshiba Memory America Highlights TRocksDB at SNIA's 2019 Storage Developer Conference
23 September 2019, Business Wire

Facebook Open Sources MyRocks DB Engine And ZStandard Compression Algorithm
3 September 2016, Fossbytes

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25 November 2020, Tri State Observer

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26 November 2020, Khabar South Asia

Why the Apache Lucene and Solr "divorce" is better for developers and users
8 July 2020, TechRepublic

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27 November 2020, Washington Post

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