DBMS > Atos Standard Common Repository vs. Hawkular Metrics vs. Postgres-XL vs. SiriDB

System Properties Comparison Atos Standard Common Repository vs. Hawkular Metrics vs. Postgres-XL vs. SiriDB

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Editorial information provided by DB-Engines
Name	Atos Standard Common Repository  Xexclude from comparison	Hawkular Metrics  Xexclude from comparison	Postgres-XL  Xexclude from comparison	SiriDB  Xexclude from comparison
	This system has been discontinued and will be removed 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.	Based on PostgreSQL enhanced with MPP and write-scale-out cluster features	Open Source Time Series DBMS
Primary database model	Document store Key-value store	Time Series DBMS	Relational DBMS	Time Series DBMS
Secondary database models			Document store Spatial DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart		Score 0.08 Rank #366   Overall #39   Time Series DBMS	Score 0.53 Rank #254   Overall #117   Relational DBMS	Score 0.07 Rank #378   Overall #42   Time Series DBMS
Website	atos.net/en/convergence-creators/portfolio/standard-common-repository	www.hawkular.org	www.postgres-xl.org	siridb.com
Technical documentation		www.hawkular.org/­hawkular-metrics/­docs/­user-guide	www.postgres-xl.org/­documentation	docs.siridb.com
Developer	Atos Convergence Creators	Community supported by Red Hat		Cesbit
Initial release	2016	2014	2014 since 2012, originally named StormDB	2017
Current release	1703		10 R1, October 2018
License Commercial or Open Source	commercial	Open Source Apache 2.0	Open Source Mozilla public license	Open Source MIT License
Cloud-based only Only available as a cloud service	no	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	C	C
Server operating systems	Linux	Linux OS X Windows	Linux macOS	Linux
Data scheme	Schema and schema-less with LDAP views	schema-free	yes	yes
Typing predefined data types such as float or date	optional	yes	yes	yes Numeric data
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	yes XML type, but no XML query functionality	no
Secondary indexes	yes	no	yes	yes
SQL Support of SQL	no	no	yes distributed, parallel query execution	no
APIs and other access methods	LDAP	HTTP REST	ADO.NET JDBC native C library ODBC streaming API for large objects	HTTP API
Supported programming languages	All languages with LDAP bindings	Go Java Python Ruby	.Net C C++ Delphi Erlang Java JavaScript (Node.js) Perl PHP Python Tcl	C C++ Go Java JavaScript (Node.js) PHP Python R
Server-side scripts Stored procedures	no	no	user defined functions	no
Triggers	yes	yes via Hawkular Alerting	yes	no
Partitioning methods Methods for storing different data on different nodes	Sharding cell division	Sharding based on Cassandra	horizontal partitioning	Sharding
Replication methods Methods for redundantly storing data on multiple nodes	yes	selectable replication factor based on Cassandra		yes
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 MVCC	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.	yes	no	no	yes
User concepts Access control	LDAP bind authentication	no	fine grained access rights according to SQL-standard	simple rights management via user accounts
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More resources
	Atos Standard Common Repository	Hawkular Metrics	Postgres-XL	SiriDB
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