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DBMS > Cloudflare Workers KV vs. MongoDB vs. Nebula Graph

System Properties Comparison Cloudflare Workers KV vs. MongoDB vs. Nebula Graph

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Editorial information provided by DB-Engines
NameCloudflare Workers KV  Xexclude from comparisonMongoDB  Xexclude from comparisonNebula Graph  Xexclude from comparison
DescriptionA global, low-latency, key-value store for applications on Cloudflare with exceptionally high read volumes and low-latency.One of the most popular document stores available both as a fully managed cloud service and for deployment on self-managed infrastructureA distributed, linear scalable, high perfomant Graph DBMS
Primary database modelKey-value storeDocument storeGraph DBMS
Secondary database modelsSpatial DBMS
Search engine infointegrated Lucene index, currently in MongoDB Atlas only.
Time Series DBMS infoTime Series Collections introduced in Release 5.0
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.18
Rank#291  Overall
#43  Key-value stores
Score496.50
Rank#5  Overall
#1  Document stores
Score1.10
Rank#168  Overall
#15  Graph DBMS
Websitewww.cloudflare.com/­products/­workers-kvwww.mongodb.comgithub.com/­vesoft-inc/­nebula
nebula-graph.io
Technical documentationdevelopers.cloudflare.com/­workers/­runtime-apis/­kvdocs.mongodb.com/­manualdocs.nebula-graph.io
DeveloperCloudflareMongoDB, IncVesoft Inc.
Initial release201820092019
Current release5.0, July 2021
License infoCommercial or Open SourcecommercialOpen Source infoMongoDB Inc.'s Server Side Public License v1. Prior versions were published under GNU AGPL v3.0. Commercial licenses are also available.Open Source infoApache Version 2.0 + Common Clause 1.0
Cloud-based only infoOnly available as a cloud serviceyesno infoMongoDB available as DBaaS (MongoDB Atlas)no
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageC++C++
Server operating systemshostedLinux
OS X
Solaris
Windows
Linux
Data schemeschema-freeschema-free infoAlthough schema-free, documents of the same collection often follow the same structure. Optionally impose all or part of a schema by defining a JSON schema.Strong typed schema
Typing infopredefined data types such as float or datenoyes infostring, integer, double, decimal, boolean, date, object_id, geospatialyes
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 indexesnoyesyes infoNebula Graph internally uses the Key-Value store RocksDB for persistency. The vertices, edges, and their properties are stored as Key while their values are stored as Value. The primary indexes are per Key and secondary indexes are per Value.
SQL infoSupport of SQLnoRead-only SQL queries via the MongoDB Connector for BISQL-like query language
APIs and other access methodsHTTP REST
Proprietary protocol
proprietary protocol using JSONBrowser interface
console (shell)
Proprietary native API
Query language nGQL
Supported programming languagesC
C++
Dart
JavaScript
Kotlin
Python
Rust
Scala
Actionscript infounofficial driver
C
C#
C++
Clojure infounofficial driver
ColdFusion infounofficial driver
D infounofficial driver
Dart infounofficial driver
Delphi infounofficial driver
Erlang
Go
Groovy infounofficial driver
Haskell
Java
JavaScript
Lisp infounofficial driver
Lua infounofficial driver
MatLab infounofficial driver
Perl
PHP
PowerShell infounofficial driver
Prolog infounofficial driver
Python
R infounofficial driver
Ruby
Rust
Scala
Smalltalk infounofficial driver
Swift
C++
Go
Java
Python
Server-side scripts infoStored proceduresnoJavaScript
Triggersnoyes infoin MongoDB Atlas only
Partitioning methods infoMethods for storing different data on different nodesSharding infoPartitioned by hashed, ranged, or zoned sharding keys. Live resharding allows users to change their shard keys as an online operation with zero downtime.Sharding
Replication methods infoMethods for redundantly storing data on multiple nodesyesMulti-Source deployments with MongoDB Atlas Global Clusters
Source-replica replication
Causal Clustering using Raft protocol
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyesno
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual ConsistencyEventual Consistency
Immediate Consistency infocan be individually decided for each write operation
Immediate Consistency
Foreign keys infoReferential integritynono infotypically not used, however similar functionality with DBRef possibleyes infoRelationships in graphs
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoMulti-document ACID Transactions with snapshot isolationACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyes infooptional, enabled by defaultyes infousing RocksDB
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyes infoIn-memory storage engine introduced with MongoDB version 3.2yes
User concepts infoAccess controlAccess rights for users and rolesRole-based access control
More information provided by the system vendor
Cloudflare Workers KVMongoDBNebula Graph
Specific characteristicsMongoDB’s application data platform provides developers a unified interface to power...
» more
Nebula Graph is a truly distributed, linearly scalable, lightning-fast graph database,...
» more
Competitive advantagesThe MongoDB platform can be used by developers building transactional, operational,...
» more
Nebula Graph boasts the world's only graph database solution that is able to host...
» more
Typical application scenariosInternet of Things and Time Series (Bosch, Jaguar Land Rover) Mobile (The Weather...
» more
Social networking Fraud detection Knowledge graph Data warehouse management Anti...
» more
Key customersADP, Adobe, Amadeus, AstraZeneca, Auto Trader, Barclays, BBVA, Bosch, Cisco, CERN,...
» more
Currently we have some top internet companies in China implementing Nebula Graph...
» more
Market metrics175 million downloads, over 1.5M Atlas database clusters under management handling...
» more
At our very early stage, Nebula Graph has already received 3.5k stars and thousands...
» more
Licensing and pricing modelsMongoDB database server: Server-Side Public License (SSPL) . Commercial licenses...
» more
Nebula Graph is open source and free to use under Apache 2.0 license and Common Clause...
» more
News

Nebula Graph Source Code Explained: RBO
14 September 2021

Game Pocket Monsters with Nebula Graph
3 September 2021

Nebula Graph Source Code Explained: Validator
20 August 2021

Nebula Graph Source Code Explained: An Overview
13 August 2021

Nebula Graph Source Code Explained | Vol.00 Preface
5 August 2021

We invite representatives of system vendors to contact us for updating and extending the system information,
and for displaying vendor-provided information such as key customers, competitive advantages and market metrics.

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We invite representatives of vendors of related products to contact us for presenting information about their offerings here.

More resources
Cloudflare Workers KVMongoDBNebula Graph
DB-Engines blog posts

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Conferences and events

MongoDB.Local London
London, 9 November 2021

Finished events

Introduction to MongoDB
Webinar, on demand, 27 July 2021 (finished)

Recent citations in the news

Cloudflare Releases Workers KV, a Serverless Key-Value Store at the Edge
28 May 2019, InfoQ.com

Running React Applications at the Edge with Cloudflare Workers - Q&A with Josh Larson
4 November 2020, InfoQ.com

Cloudflare Takes On AWS Lambda@Edge With A Cheaper And Faster Serverless Platform
27 July 2020, Forbes

Cloudflare: Leading At The Edge
14 May 2021, Seeking Alpha

Cloudflare launches Cloudflare Pages, a platform to deploy and host JAMstack sites
17 December 2020, TechCrunch

provided by Google News

MongoDB surge wraps up a massive week for open-source software as a business
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5 Things to Know About MongoDB Stock
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MongoDB’s Atlas Turns Five
16 September 2021, DevOps.com

We’ve made software developers’ lives much simpler: MongoDB Apac head
20 September 2021, Times of India

Couchbase Is No MongoDB
10 September 2021, Motley Fool

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Third Time Is The Charm For Nebula Graph Database
19 January 2021, The Next Platform

Announcing winners of the OTEC-Emerge Technology Awards
17 September 2021, TechNode

The future of graph database: vesoft unveils Nebula Graph 2.0 GA
24 March 2021, PR Web

Nebula Graph open sources Nebula Operator, embraces cloud native
29 April 2021, PR Web

Nebula Graph™ Database Secures $10 Million VC Funding in New Round
15 December 2020, PR Web

provided by Google News

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