DBMS > Atos Standard Common Repository vs. Hawkular Metrics vs. Lovefield vs. Yanza

System Properties Comparison Atos Standard Common Repository vs. Hawkular Metrics vs. Lovefield vs. Yanza

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Editorial information provided by DB-Engines
Name	Atos Standard Common Repository  Xexclude from comparison	Hawkular Metrics  Xexclude from comparison	Lovefield  Xexclude from comparison	Yanza  Xexclude from comparison
	This system has been discontinued and will be removed from the DB-Engines ranking.			Yanza seems to be discontinued. Therefore it is excluded from the DB-Engines Ranking.
Description	Highly scalable database system, designed for managing session and subscriber data in modern mobile communication networks	Hawkular metrics is the metric storage of the Red Hat sponsored Hawkular monitoring system. It is based on Cassandra.	Embeddable relational database for web apps written in pure JavaScript	Time Series DBMS for IoT Applications
Primary database model	Document store Key-value store	Time Series DBMS	Relational DBMS	Time Series DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart		Score 0.08 Rank #366   Overall #39   Time Series DBMS	Score 0.33 Rank #286   Overall #131   Relational DBMS
Website	atos.net/en/convergence-creators/portfolio/standard-common-repository	www.hawkular.org	google.github.io/­lovefield	yanza.com
Technical documentation		www.hawkular.org/­hawkular-metrics/­docs/­user-guide	github.com/­google/­lovefield/­blob/­master/­docs/­spec_index.md
Developer	Atos Convergence Creators	Community supported by Red Hat	Google	Yanza
Initial release	2016	2014	2014	2015
Current release	1703		2.1.12, February 2017
License Commercial or Open Source	commercial	Open Source Apache 2.0	Open Source Apache 2.0	commercial free version available
Cloud-based only Only available as a cloud service	no	no	no	no but mainly used as a service provided by Yanza
DBaaS offerings (sponsored links) Database as a Service Providers of DBaaS offerings, please contact us to be listed.
Implementation language	Java	Java	JavaScript
Server operating systems	Linux	Linux OS X Windows	server-less, requires a JavaScript environment (browser, Node.js) tested with Chrome, Firefox, IE, Safari	Windows
Data scheme	Schema and schema-less with LDAP views	schema-free	yes	schema-free
Typing predefined data types such as float or date	optional	yes	yes	no
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	no
Secondary indexes	yes	no	yes	no
SQL Support of SQL	no	no	SQL-like query language via JavaScript builder pattern	no
APIs and other access methods	LDAP	HTTP REST		HTTP API
Supported programming languages	All languages with LDAP bindings	Go Java Python Ruby	JavaScript	any language that supports HTTP calls
Server-side scripts Stored procedures	no	no	no	no
Triggers	yes	yes via Hawkular Alerting	Using read-only observers	yes Timer and event based
Partitioning methods Methods for storing different data on different nodes	Sharding cell division	Sharding based on Cassandra	none	none
Replication methods Methods for redundantly storing data on multiple nodes	yes	selectable replication factor based on Cassandra	none	none
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		Immediate Consistency
Foreign keys Referential integrity	no	no	yes	no
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	Atomic execution of specific operations	no	ACID	no
Concurrency Support for concurrent manipulation of data	yes	yes	yes	yes
Durability Support for making data persistent	yes	yes	yes, by using IndexedDB or the cloud service Firebase Realtime Database	yes
In-memory capabilities Is there an option to define some or all structures to be held in-memory only.	yes	no	yes using MemoryDB
User concepts Access control	LDAP bind authentication	no	no	no
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More resources
	Atos Standard Common Repository	Hawkular Metrics	Lovefield	Yanza
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