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DBMS > Apache Solr vs. LevelDB vs. Machbase Neo

System Properties Comparison Apache Solr vs. LevelDB vs. Machbase Neo

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Editorial information provided by DB-Engines
NameApache Solr  Xexclude from comparisonLevelDB  Xexclude from comparisonMachbase Neo infoFormer name was Infiniflux  Xexclude from comparison
DescriptionA widely used distributed, scalable search engine based on Apache LuceneEmbeddable fast key-value storage library that provides an ordered mapping from string keys to string valuesTimeSeries DBMS for AIoT and BigData
Primary database modelSearch engineKey-value storeTime Series DBMS
Secondary database modelsSpatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score32.67
Rank#24  Overall
#3  Search engines
Score2.15
Rank#110  Overall
#18  Key-value stores
Score0.08
Rank#347  Overall
#34  Time Series DBMS
Websitesolr.apache.orggithub.com/­google/­leveldbmachbase.com
Technical documentationsolr.apache.org/­resources.htmlgithub.com/­google/­leveldb/­blob/­main/­doc/­index.mdmachbase.com/­dbms
DeveloperApache Software FoundationGoogleMachbase
Initial release200620112013
Current release9.6.1, May 20241.23, February 2021V8.0, August 2023
License infoCommercial or Open SourceOpen Source infoApache Version 2Open Source infoBSDcommercial infofree test version available
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaC++C
Server operating systemsAll OS with a Java VM inforuns as a servlet in servlet container (e.g. Tomcat, Jetty is included)Illumos
Linux
OS X
Windows
Linux
macOS
Windows
Data schemeyes infoDynamic Fields enables on-the-fly addition of new fieldsschema-freeyes
Typing infopredefined data types such as float or dateyes infosupports customizable data types and automatic typingnoyes
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.yesnono
Secondary indexesyes infoAll search fields are automatically indexednoyes
SQL infoSupport of SQLSolr Parallel SQL InterfacenoSQL-like query language
APIs and other access methodsJava API
RESTful HTTP/JSON API
gRPC
HTTP REST
JDBC
MQTT (Message Queue Telemetry Transport)
ODBC
Supported programming languages.Net
Erlang
Java
JavaScript
any language that supports sockets and either XML or JSON
Perl
PHP
Python
Ruby
Scala
C++
Go
Java info3rd party binding
JavaScript (Node.js) info3rd party binding
Python info3rd party binding
C
C#
C++
Go
Java
JavaScript
PHP infovia ODBC
Python
R infovia ODBC
Scala
Server-side scripts infoStored proceduresJava pluginsnono
Triggersyes infoUser configurable commands triggered on index changesnono
Partitioning methods infoMethods for storing different data on different nodesShardingnoneSharding
Replication methods infoMethods for redundantly storing data on multiple nodesyesnoneselectable replication factor
MapReduce infoOffers an API for user-defined Map/Reduce methodsspark-solr: github.com/­lucidworks/­spark-solr and streaming expressions to reducenono
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual ConsistencyImmediate Consistency
Foreign keys infoReferential integritynonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataoptimistic lockingnono
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyes infowith automatic compression on writesno
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyes infovolatile and lookup table
User concepts infoAccess controlyesnosimple password-based access control

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More resources
Apache SolrLevelDBMachbase Neo infoFormer name was Infiniflux
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