DBMS > Hawkular Metrics vs. OpenTSDB

System Properties Comparison Hawkular Metrics vs. OpenTSDB

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Editorial information provided by DB-Engines
Name	Hawkular Metrics  Xexclude from comparison	OpenTSDB  Xexclude from comparison
Description	Hawkular metrics is the metric storage of the Red Hat sponsored Hawkular monitoring system. It is based on Cassandra.	Scalable Time Series DBMS based on HBase
Primary database model	Time Series DBMS	Time Series DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 0.00 Rank #355   Overall #31   Time Series DBMS	Score 1.96 Rank #124   Overall #8   Time Series DBMS
Website	www.hawkular.org	opentsdb.net
Technical documentation	www.hawkular.org/­hawkular-metrics/­docs/­user-guide	opentsdb.net/­docs/­build/­html/­index.html
Developer	Community supported by Red Hat	currently maintained by Yahoo and other contributors
Initial release	2014	2011
License Commercial or Open Source	Open Source Apache 2.0	Open Source LGPL
Cloud-based only Only available as a cloud service	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	Linux OS X Windows	Linux Windows
Data scheme	schema-free	schema-free
Typing predefined data types such as float or date	yes	numeric data for metrics, strings for tags
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	no
Secondary indexes	no	no
SQL Support of SQL	no	no
APIs and other access methods	HTTP REST	HTTP API Telnet API
Supported programming languages	Go Java Python Ruby	Erlang Go Java Python R Ruby
Server-side scripts Stored procedures	no	no
Triggers	yes via Hawkular Alerting	no
Partitioning methods Methods for storing different data on different nodes	Sharding based on Cassandra	Sharding based on HBase
Replication methods Methods for redundantly storing data on multiple nodes	selectable replication factor based on Cassandra	selectable replication factor based on HBase
MapReduce Offers an API for user-defined Map/Reduce methods	no	no
Consistency concepts Methods to ensure consistency in a distributed system	Eventual Consistency based on Cassandra Immediate Consistency based on Cassandra	Immediate Consistency based on HBase
Foreign keys Referential integrity	no	no
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	no	no
Concurrency Support for concurrent manipulation of data	yes	yes
Durability Support for making data persistent	yes	yes
In-memory capabilities Is there an option to define some or all structures to be held in-memory only.	no	no
User concepts Access control	no	no
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	Hawkular Metrics	OpenTSDB
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