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DBMS > Cloudflare Workers KV vs. OpenMLDB vs. OpenTSDB vs. YDB

System Properties Comparison Cloudflare Workers KV vs. OpenMLDB vs. OpenTSDB vs. YDB

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Editorial information provided by DB-Engines
NameCloudflare Workers KV  Xexclude from comparisonOpenMLDB  Xexclude from comparisonOpenTSDB  Xexclude from comparisonYDB  Xexclude from comparison
DescriptionA global, low-latency, key-value store for applications on Cloudflare with exceptionally high read volumes and low-latency.An open-source machine learning database that provides a feature platform for training and inferenceScalable Time Series DBMS based on HBaseA distributed fault-tolerant database service, with high availability, scalability, immediate consistency and ACID transactions and providing an Amazon DynamoDB compatible API
Primary database modelKey-value storeTime Series DBMSTime Series DBMSDocument store
Relational DBMS
Secondary database modelsRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.29
Rank#283  Overall
#40  Key-value stores
Score0.11
Rank#339  Overall
#30  Time Series DBMS
Score1.59
Rank#140  Overall
#12  Time Series DBMS
Score0.39
Rank#269  Overall
#43  Document stores
#126  Relational DBMS
Websitewww.cloudflare.com/­developer-platform/­workers-kvopenmldb.aiopentsdb.netgithub.com/­ydb-platform/­ydb
ydb.tech
Technical documentationdevelopers.cloudflare.com/­kv/­apiopenmldb.ai/­docs/­zh/­mainopentsdb.net/­docs/­build/­html/­index.htmlydb.tech/­en/­docs
DeveloperCloudflare4 Paradigm Inc.currently maintained by Yahoo and other contributorsYandex
Initial release2018202020112019
Current release2024-2 February 2024
License infoCommercial or Open SourcecommercialOpen SourceOpen Source infoLGPLOpen Source infoApache 2.0; commercial license available
Cloud-based only infoOnly available as a cloud serviceyesnonono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageC++, Java, ScalaJava
Server operating systemshostedLinuxLinux
Windows
Linux
Data schemeschema-freeFixed schemaschema-freeFlexible Schema (defined schema, partial schema, schema free)
Typing infopredefined data types such as float or datenoyesnumeric data for metrics, strings for tagsyes
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.nononono
Secondary indexesnoyesnoyes
SQL infoSupport of SQLnoyesnoSQL-like query language (YQL)
APIs and other access methodsHTTP REST
Proprietary protocol
JDBC
SQLAlchemy
HTTP API
Telnet API
RESTful HTTP API (DynamoDB compatible)
Supported programming languagesC
C++
Dart
JavaScript
Kotlin
Python
Rust
Scala
C++
Go
Java
Python
Scala
Erlang
Go
Java
Python
R
Ruby
Go
Java
JavaScript (Node.js)
PHP
Python
Server-side scripts infoStored proceduresnononono
Triggersnonono
Partitioning methods infoMethods for storing different data on different nodeshorizontal partitioningSharding infobased on HBaseSharding
Replication methods infoMethods for redundantly storing data on multiple nodesyesSource-replica replicationselectable replication factor infobased on HBaseActive-passive shard replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual ConsistencyImmediate ConsistencyImmediate Consistency infobased on HBaseImmediate Consistency
Foreign keys infoReferential integritynononono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanononoACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyesnono
User concepts infoAccess controlfine grained access rights according to SQL-standardnoAccess rights defined for Yandex Cloud users

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More resources
Cloudflare Workers KVOpenMLDBOpenTSDBYDB
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