DBMS > Alibaba Cloud TSDB vs. Amazon CloudSearch vs. Atos Standard Common Repository vs. FatDB

System Properties Comparison Alibaba Cloud TSDB vs. Amazon CloudSearch vs. Atos Standard Common Repository vs. FatDB

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Editorial information provided by DB-Engines
Name	Alibaba Cloud TSDB  Xexclude from comparison	Amazon CloudSearch  Xexclude from comparison	Atos Standard Common Repository  Xexclude from comparison	FatDB  Xexclude from comparison
			This system has been discontinued and will be removed from the DB-Engines ranking.	FatDB/FatCloud has ceased operations as a company with February 2014. FatDB is discontinued and excluded from the ranking.
Description	A stable, reliable, and cost-effective online high-performance time series database service	A hosted search engine service by Amazon with the data stored in Amazons cloud	Highly scalable database system, designed for managing session and subscriber data in modern mobile communication networks	A .NET NoSQL DBMS that can integrate with and extend SQL Server.
Primary database model	Time Series DBMS	Search engine	Document store Key-value store	Document store Key-value store
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 0.29 Rank #301   Overall #26   Time Series DBMS	Score 1.81 Rank #137   Overall #12   Search engines
Website	www.alibabacloud.com/­product/­hitsdb	aws.amazon.com/­cloudsearch	atos.net/en/convergence-creators/portfolio/standard-common-repository
Technical documentation	www.alibabacloud.com/­help/­en/­time-series-database/­latest/­what-is-tsdb	docs.aws.amazon.com/­cloudsearch
Developer	Alibaba	Amazon	Atos Convergence Creators	FatCloud
Initial release		2012	2016	2012
Current release			1703
License Commercial or Open Source	commercial	commercial	commercial	commercial
Cloud-based only Only available as a cloud service	yes	yes	no	no
DBaaS offerings (sponsored links) Database as a Service Providers of DBaaS offerings, please contact us to be listed.
Implementation language			Java	C#
Server operating systems	hosted	hosted	Linux	Windows
Data scheme	schema-free	yes	Schema and schema-less with LDAP views	schema-free
Typing predefined data types such as float or date	Numeric data and Strings	yes	optional	yes
XML support Some form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.	no		yes
Secondary indexes	no	yes all search fields are automatically indexed	yes	yes
SQL Support of SQL	no	no	no	no Via inetgration in SQL Server
APIs and other access methods	HTTP REST	HTTP API	LDAP	.NET Client API LINQ RESTful HTTP API RPC Windows WCF Bindings
Supported programming languages	Java		All languages with LDAP bindings	C#
Server-side scripts Stored procedures	no	no	no	yes via applications
Triggers	no	no	yes	yes via applications
Partitioning methods Methods for storing different data on different nodes		yes automatic partitioning across Amazon Search Instance as required	Sharding cell division	Sharding
Replication methods Methods for redundantly storing data on multiple nodes		yes managed transparently by AWS	yes	selectable replication factor
MapReduce Offers an API for user-defined Map/Reduce methods	no	no		yes
Consistency concepts Methods to ensure consistency in a distributed system	Immediate Consistency		Immediate Consistency or Eventual Consistency depending on configuration	Eventual Consistency Immediate Consistency
Foreign keys Referential integrity	no	no	no	no
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	no	no	Atomic execution of specific operations	no
Concurrency Support for concurrent manipulation of data	yes	yes	yes	yes
Durability Support for making data persistent	yes	yes	yes	yes
In-memory capabilities Is there an option to define some or all structures to be held in-memory only.	no		yes
User concepts Access control	Access managed on TSDB instance level	authentication via encrypted signatures	LDAP bind authentication	no Can implement custom security layer via applications
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More resources
	Alibaba Cloud TSDB	Amazon CloudSearch	Atos Standard Common Repository	FatDB
DB-Engines blog posts		Amazon - the rising star in the DBMS market 3 August 2015, Matthias Gelbmann The DB-Engines ranking includes now search engines 4 February 2013, Paul Andlinger show all
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

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