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DBMS > Amazon CloudSearch vs. LokiJS vs. openGemini

System Properties Comparison Amazon CloudSearch vs. LokiJS vs. openGemini

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Editorial information provided by DB-Engines
NameAmazon CloudSearch  Xexclude from comparisonLokiJS  Xexclude from comparisonopenGemini  Xexclude from comparison
DescriptionA hosted search engine service by Amazon with the data stored in Amazons cloudIn-memory JavaScript DBMSAn open source distributed Time Series DBMS with high concurrency, high performance, and high scalability
Primary database modelSearch engineDocument storeTime Series DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.81
Rank#137  Overall
#12  Search engines
Score0.49
Rank#260  Overall
#42  Document stores
Score0.09
Rank#361  Overall
#37  Time Series DBMS
Websiteaws.amazon.com/­cloudsearchgithub.com/­techfort/­LokiJSwww.opengemini.org
github.com/­openGemini
Technical documentationdocs.aws.amazon.com/­cloudsearchtechfort.github.io/­LokiJSdocs.opengemini.org/­guide
DeveloperAmazonHuawei and openGemini community
Initial release201220142022
Current release1.1, July 2023
License infoCommercial or Open SourcecommercialOpen SourceOpen Source infoApache Version 2.0
Cloud-based only infoOnly available as a cloud serviceyesnono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageJavaScriptGo
Server operating systemshostedserver-less, requires a JavaScript environment (browser, Node.js)Linux
Windows
Data schemeyesschema-freeschema-free
Typing infopredefined data types such as float or dateyesnoInteger, Float, Boolean, String
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.nono
Secondary indexesyes infoall search fields are automatically indexedyes infovia viewsyes
SQL infoSupport of SQLnonoSQL-like query language
APIs and other access methodsHTTP APIJavaScript APIHTTP REST
Supported programming languagesJavaScriptC
C++
Go
Java
JavaScript (Node.js)
Python
Rust
Server-side scripts infoStored proceduresnoView functions in JavaScriptno
Triggersnoyesno
Partitioning methods infoMethods for storing different data on different nodesyes infoautomatic partitioning across Amazon Search Instance as requirednoneSharding
Replication methods infoMethods for redundantly storing data on multiple nodesyes infomanaged transparently by AWSnoneyes
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyesno
Consistency concepts infoMethods to ensure consistency in a distributed systemnone
Foreign keys infoReferential integritynonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanono infoatomic operations within a single collection possibleno
Concurrency infoSupport for concurrent manipulation of datayesyes
Durability infoSupport for making data persistentyesyes infoSerialization of a DB in a Node.JS/Cordova/PhoneGap environment. Usage of the IndexedDB-API in a browser.yes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyes
User concepts infoAccess controlauthentication via encrypted signaturesnoAdministrators and common users accounts

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More resources
Amazon CloudSearchLokiJSopenGemini
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Recent citations in the news

Amazon CloudSearch – Start Searching in One Hour for Less Than $100 / Month | Amazon Web Services
12 April 2012, AWS Blog

Searching CloudTrail Logs Easily with Amazon CloudSearch | AWS Startups Blog
21 October 2014, AWS Blog

AWS, Microsoft and Google should retire these cloud services
2 June 2020, TechTarget

CloudSearch Update – Price Reduction, Hebrew & Japanese Support, Partitioning, CloudTrail | Amazon Web Services
19 November 2014, AWS Blog

Amazon CloudSearch – Even Better Searching for Less Than $100/Month | Amazon Web Services
24 March 2014, AWS Blog

provided by Google News

LokiJS - A JavaScript Database
18 November 2014, iProgrammer

provided by Google News

About HUAWEI Open Source
9 February 2022, Huawei

provided by Google News



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