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DBMS > Google Search Appliance vs. PouchDB vs. Solr

System Properties Comparison Google Search Appliance vs. PouchDB vs. Solr

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Editorial information provided by DB-Engines
NameGoogle Search Appliance  Xexclude from comparisonPouchDB  Xexclude from comparisonSolr  Xexclude from comparison
DescriptionThe Google Search Appliance consists of hardware and software for indexing documents in local networks.JavaScript DBMS with an API inspired by CouchDBA widely used enterprise search engine based on Apache Lucene
Primary database modelSearch engineDocument storeSearch engine
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score2.86
Rank#86  Overall
#9  Search engines
Score2.75
Rank#88  Overall
#15  Document stores
Score57.57
Rank#17  Overall
#3  Search engines
Websiteenterprise.google.com/­search/­products/­gsa.htmlpouchdb.comlucene.apache.org/­solr
Technical documentationsupport.google.com/­gsapouchdb.com/­guideslucene.apache.org/­solr/­resources.html
DeveloperGoogleApache Software FoundationApache Software Foundation
Initial release200220122004
Current release7.1.1, June 20198.2.0, July 2019
License infoCommercial or Open SourcecommercialOpen SourceOpen Source infoApache Version 2
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 languageJavaScriptJava
Server operating systemsserver-less, requires a JavaScript environment (browser, Node.js)All OS with a Java VM and a servlet container 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.nonono
Secondary indexesyes infovia viewsyes infoAll search fields are automatically indexed
SQL infoSupport of SQLnonono infosupports limited query time joins
APIs and other access methodsAdministrative API
Browser interface
HTTP API
HTTP REST infoonly for PouchDB Server
JavaScript API
Java API
RESTful HTTP API
Supported programming languagesJavaScript.Net
Erlang
Java
JavaScript
any language that supports sockets and either XML or JSON
Perl
PHP
Python
Ruby
Scala
Server-side scripts infoStored proceduresView functions in JavaScriptJava plugins
Triggersyesyes infoUser configurable commands triggered on index changes
Partitioning methods infoMethods for storing different data on different nodesShardingSharding infowith a proxy-based framework, named couchdb-loungeSharding
Replication methods infoMethods for redundantly storing data on multiple nodesMaster-slave replicationMaster-master replication infoalso with CouchDB databases
Master-slave replication infoalso with CouchDB databases
cloud/distributed (via Zookeeper)
Master-slave replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyesno
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual ConsistencyEventual Consistency infoslaves poll the master in predefined intervalls
Foreign keys infoReferential integritynonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanooptimistic locking infoSolr 4
Concurrency infoSupport for concurrent manipulation of datayesyes
Durability infoSupport for making data persistentyesyes infoby using IndexedDB, WebSQL or LevelDB as backendyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyesno
User concepts infoAccess controlUser authentication via various security protocolsno

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More resources
Google Search AppliancePouchDBSolr
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Recent citations in the news

Elastic Is Looking a Lot Like Google 10 Years Ago
10 June 2019, Motley Fool

What is a Google Search Appliance?
8 January 2014, TechRepublic

Google Search Appliance Fades Away
9 February 2016, CMSWire

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