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DBMS > Alibaba Cloud PolarDB vs. Amazon DynamoDB vs. Cassandra vs. IBM Cloudant vs. OpenTSDB

System Properties Comparison Alibaba Cloud PolarDB vs. Amazon DynamoDB vs. Cassandra vs. IBM Cloudant vs. OpenTSDB

Editorial information provided by DB-Engines
NameAlibaba Cloud PolarDB  Xexclude from comparisonAmazon DynamoDB  Xexclude from comparisonCassandra  Xexclude from comparisonIBM Cloudant  Xexclude from comparisonOpenTSDB  Xexclude from comparison
DescriptionA cloud-native relational database compatible with MySQL, PostgreSQL, and Oracle. Designed for business critical applications.Hosted, scalable database service by Amazon with the data stored in Amazons cloudWide-column store based on ideas of BigTable and DynamoDB infoOptimized for write accessDatabase as a Service offering based on Apache CouchDBScalable Time Series DBMS based on HBase
Primary database modelRelational DBMSDocument store
Key-value store
Wide column storeDocument storeTime Series DBMS
Secondary database modelsVector DBMS infostarting with release V5
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.59
Rank#241  Overall
#110  Relational DBMS
Score74.07
Rank#17  Overall
#3  Document stores
#2  Key-value stores
Score101.89
Rank#12  Overall
#1  Wide column stores
Score2.68
Rank#106  Overall
#20  Document stores
Score1.68
Rank#146  Overall
#12  Time Series DBMS
Websitewww.alibabacloud.com/­product/­polardbaws.amazon.com/­dynamodbcassandra.apache.orgwww.ibm.com/­products/­cloudantopentsdb.net
Technical documentationwww.alibabacloud.com/­help/­en/­polardb/­product-overviewdocs.aws.amazon.com/­dynamodbcassandra.apache.org/­doc/­latestcloud.ibm.com/­docs/­Cloudantopentsdb.net/­docs/­build/­html/­index.html
DeveloperAlibabaAmazonApache Software Foundation infoApache top level project, originally developped by FacebookIBM, Apache Software Foundation infoIBM acquired Cloudant in February 2014currently maintained by Yahoo and other contributors
Initial release2012200820102011
Current release4.1.3, July 2023
License infoCommercial or Open Sourcecommercialcommercial infofree tier for a limited amount of database operationsOpen Source infoApache version 2commercialOpen Source infoLGPL
Cloud-based only infoOnly available as a cloud serviceyesyesnoyesno
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Astra DB: Multi-cloud DBaaS built on Apache Cassandra.
Implementation languageJavaErlangJava
Server operating systemshostedhostedBSD
Linux
OS X
Windows
hostedLinux
Windows
Data schemeyesschema-freeschema-freeschema-freeschema-free
Typing infopredefined data types such as float or dateyesyesyesnonumeric data for metrics, strings for tags
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.yesnonono
Secondary indexesyesyesrestricted infoonly equality queries, not always the best performing solutionyesno
SQL infoSupport of SQLyesnoSQL-like SELECT, DML and DDL statements (CQL)nono
APIs and other access methodsJDBC
ODBC
RESTful HTTP APIProprietary protocol infoCQL (Cassandra Query Language, an SQL-like language)
Thrift
RESTful HTTP/JSON APIHTTP API
Telnet API
Supported programming languagesJava
Python
.Net
ColdFusion
Erlang
Groovy
Java
JavaScript
Perl
PHP
Python
Ruby
C#
C++
Clojure
Erlang
Go
Haskell
Java
JavaScript infoNode.js
Perl
PHP
Python
Ruby
Scala
C#
Java
JavaScript
Objective-C
PHP
Ruby
Erlang
Go
Java
Python
R
Ruby
Server-side scripts infoStored proceduresyesnonoView functions (Map-Reduce) in JavaScriptno
Triggersyesyes infoby integration with AWS Lambdayesyesno
Partitioning methods infoMethods for storing different data on different nodesSharding infoImplicit feature of the cloud serviceShardingSharding infono "single point of failure"ShardingSharding infobased on HBase
Replication methods infoMethods for redundantly storing data on multiple nodesyes infoImplicit feature of the cloud serviceyesselectable replication factor infoRepresentation of geographical distribution of servers is possibleMulti-source replication
Source-replica replication
selectable replication factor infobased on HBase
MapReduce infoOffers an API for user-defined Map/Reduce methodsnono infomay be implemented via Amazon Elastic MapReduce (Amazon EMR)yesyesno
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyEventual Consistency
Immediate Consistency infocan be specified for read operations
Eventual Consistency
Immediate Consistency infocan be individually decided for each write operation
Eventual ConsistencyImmediate Consistency infobased on HBase
Foreign keys infoReferential integrityyesnononono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACID infoACID across one or more tables within a single AWS account and regionno infoAtomicity and isolation are supported for single operationsno infoatomic operations within a document possibleno
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes infoOptimistic lockingyes
Durability infoSupport for making data persistentyesyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesnonono
User concepts infoAccess controlfine grained access rights according to SQL-standardAccess rights for users and roles can be defined via the AWS Identity and Access Management (IAM)Access rights for users can be defined per objectAccess rights for users can be defined per databaseno
More information provided by the system vendor
Alibaba Cloud PolarDBAmazon DynamoDBCassandraIBM CloudantOpenTSDB
Specific characteristicsPolarDB, previously ApsaraDB for PolarDB, is a cloud-native relational database designed...
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Apache Cassandra is the leading NoSQL, distributed database management system, well...
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Competitive advantagesWebinar: Top Scientists Live: Tech Secrets to Double 11's Success Revealed. White...
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No single point of failure ensures 100% availability . Operational simplicity for...
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Typical application scenariosCreating a Robust Cloud-Based Database for Fintech, E-Commerce and Gaming. Learn...
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Internet of Things (IOT), fraud detection applications, recommendation engines, product...
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Key customersApple, Netflix, Uber, ING,, Intuit,Fidelity, NY Times, Outbrain, BazaarVoice, Best...
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Market metricsCassandra is used by 40% of the Fortune 100.
» more
Licensing and pricing modelsSpecification and pricing. You can use either of the following billing methods to...
» more
Apache license  Pricing for commercial distributions provided by DataStax and available...
» more

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More resources
Alibaba Cloud PolarDBAmazon DynamoDBCassandraIBM CloudantOpenTSDB
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