DBMS > H2 vs. Hawkular Metrics vs. Prometheus
System Properties Comparison H2 vs. Hawkular Metrics vs. Prometheus
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|Editorial information provided by DB-Engines|
|Name||H2 Xexclude from comparison||Hawkular Metrics Xexclude from comparison||Prometheus Xexclude from comparison|
|Description||Full-featured RDBMS with a small footprint, either embedded into a Java application or used as a database server.||Hawkular metrics is the metric storage of the Red Hat sponsored Hawkular monitoring system. It is based on Cassandra.||Open-source TimeSeries DBMS and monitoring system|
|Primary database model||Relational DBMS||Time Series DBMS||Time Series DBMS|
|Secondary database models||Spatial DBMS|
|Developer||Thomas Mueller||Community supported by Red Hat|
|Current release||2.2.220, July 2023|
|License Commercial or Open Source||Open Source dual-licence (Mozilla public license, Eclipse public license)||Open Source Apache 2.0||Open Source Apache 2.0|
|Cloud-based only Only available as a cloud service||no||no||no|
|DBaaS offerings (sponsored links) Database as a Service|
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|Server operating systems||All OS with a Java VM||Linux|
|Typing predefined data types such as float or date||yes||yes||Numeric data only|
|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||no Import of XML data possible|
|SQL Support of SQL||yes||no||no|
|APIs and other access methods||JDBC|
|HTTP REST||RESTful HTTP/JSON API|
|Supported programming languages||Java||Go|
|Server-side scripts Stored procedures||Java Stored Procedures and User-Defined Functions||no||no|
|Triggers||yes||yes via Hawkular Alerting||no|
|Partitioning methods Methods for storing different data on different nodes||none||Sharding based on Cassandra||Sharding|
|Replication methods Methods for redundantly storing data on multiple nodes||With clustering: 2 database servers on different computers operate on identical copies of a database||selectable replication factor based on Cassandra||yes by Federation|
|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||Eventual Consistency based on Cassandra|
Immediate Consistency based on Cassandra
|Foreign keys Referential integrity||yes||no||no|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||ACID||no||no|
|Concurrency Support for concurrent manipulation of data||yes, multi-version concurrency control (MVCC)||yes||yes|
|Durability Support for making data persistent||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|
|User concepts Access control||fine grained access rights according to SQL-standard||no||no|
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