DBMS > Amazon CloudSearch vs. Atos Standard Common Repository vs. JSqlDb vs. Newts

System Properties Comparison Amazon CloudSearch vs. Atos Standard Common Repository vs. JSqlDb vs. Newts

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Editorial information provided by DB-Engines
Name	Amazon CloudSearch  Xexclude from comparison	Atos Standard Common Repository  Xexclude from comparison	JSqlDb  Xexclude from comparison	Newts  Xexclude from comparison
		This system has been discontinued and will be removed from the DB-Engines ranking.	JSqlDB seems to be discontinued. Therefore it is excluded from the DB-Engines ranking.
Description	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	JavaScript Query Language Database, stores JavaScript objects and primitives	Time Series DBMS based on Cassandra
Primary database model	Search engine	Document store Key-value store	Document store Object oriented DBMS	Time Series DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 1.81 Rank #137   Overall #12   Search engines			Score 0.07 Rank #375   Overall #41   Time Series DBMS
Website	aws.amazon.com/­cloudsearch	atos.net/en/convergence-creators/portfolio/standard-common-repository	jsqldb.org (offline)	opennms.github.io/­newts
Technical documentation	docs.aws.amazon.com/­cloudsearch			github.com/­OpenNMS/­newts/­wiki
Developer	Amazon	Atos Convergence Creators	Konrad von Backstrom	OpenNMS Group
Initial release	2012	2016	2018	2014
Current release		1703	0.8, December 2018
License Commercial or Open Source	commercial	commercial	Open Source	Open Source Apache 2.0
Cloud-based only Only available as a cloud service	yes	no	no	no
DBaaS offerings (sponsored links) Database as a Service Providers of DBaaS offerings, please contact us to be listed.
Implementation language		Java		Java
Server operating systems	hosted	Linux	Linux macOS Windows	Linux OS X Windows
Data scheme	yes	Schema and schema-less with LDAP views	schema-free	schema-free
Typing predefined data types such as float or date	yes	optional	no	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.		yes	no	no
Secondary indexes	yes all search fields are automatically indexed	yes	no	no
SQL Support of SQL	no	no	no	no
APIs and other access methods	HTTP API	LDAP		HTTP REST Java API
Supported programming languages		All languages with LDAP bindings	JavaScript	Java
Server-side scripts Stored procedures	no	no	functions in JavaScript	no
Triggers	no	yes	no	no
Partitioning methods Methods for storing different data on different nodes	yes automatic partitioning across Amazon Search Instance as required	Sharding cell division	none	Sharding based on Cassandra
Replication methods Methods for redundantly storing data on multiple nodes	yes managed transparently by AWS	yes	none	selectable replication factor based on Cassandra
MapReduce Offers an API for user-defined Map/Reduce methods	no		no	no
Consistency concepts Methods to ensure consistency in a distributed system		Immediate Consistency or Eventual Consistency depending on configuration		Eventual Consistency based on Cassandra Immediate Consistency based on Cassandra
Foreign keys Referential integrity	no	no	no	no
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	no	Atomic execution of specific operations		no
Concurrency Support for concurrent manipulation of data	yes	yes		yes
Durability Support for making data persistent	yes	yes	yes using RocksDB	yes
In-memory capabilities Is there an option to define some or all structures to be held in-memory only.		yes		no
User concepts Access control	authentication via encrypted signatures	LDAP bind authentication		no
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More resources
	Amazon CloudSearch	Atos Standard Common Repository	JSqlDb	Newts
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 Serverless Reference Architectures with AWS Lambda 10 May 2016, All Things Distributed provided by Google News

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