DBMS > Databend vs. Hawkular Metrics vs. Transwarp KunDB vs. Transwarp StellarDB

System Properties Comparison Databend vs. Hawkular Metrics vs. Transwarp KunDB vs. Transwarp StellarDB

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Editorial information provided by DB-Engines
Name	Databend  Xexclude from comparison	Hawkular Metrics  Xexclude from comparison	Transwarp KunDB  Xexclude from comparison	Transwarp StellarDB  Xexclude from comparison
Description	An open-source, elastic, and workload-aware cloud data warehouse designed to meet businesses' massive-scale analytics needs at low cost and with low complexity	Hawkular metrics is the metric storage of the Red Hat sponsored Hawkular monitoring system. It is based on Cassandra.	OLTP DBMS based on a distributed architecture and highly compatible with MySQL and Oracle	A distributed graph DBMS built for enterprise-level graph applications
Primary database model	Relational DBMS	Time Series DBMS	Relational DBMS	Graph DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 0.34 Rank #283   Overall #130   Relational DBMS	Score 0.08 Rank #366   Overall #39   Time Series DBMS	Score 0.14 Rank #341   Overall #149   Relational DBMS	Score 0.07 Rank #371   Overall #39   Graph DBMS
Website	github.com/­datafuselabs/­databend www.databend.com	www.hawkular.org	www.transwarp.cn/­en/­product/­kundb	www.transwarp.cn/­en/­product/­stellardb
Technical documentation	docs.databend.com	www.hawkular.org/­hawkular-metrics/­docs/­user-guide
Developer	Databend Labs	Community supported by Red Hat	Transwarp	Transwarp
Initial release	2021	2014
Current release	1.0.59, April 2023
License Commercial or Open Source	Open Source Apache Version 2.0	Open Source Apache 2.0	commercial	commercial
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	Rust	Java
Server operating systems	hosted Linux macOS	Linux OS X Windows
Data scheme	yes	schema-free	yes
Typing predefined data types such as float or date	yes	yes	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.	no	no
Secondary indexes	no	no	yes
SQL Support of SQL	yes	no	yes	SQL-like query language
APIs and other access methods	CLI Client JDBC RESTful HTTP API	HTTP REST		OpenCypher
Supported programming languages	Go Java JavaScript (Node.js) Python Rust	Go Java Python Ruby
Server-side scripts Stored procedures	no	no	yes
Triggers	no	yes via Hawkular Alerting	yes
Partitioning methods Methods for storing different data on different nodes	none	Sharding based on Cassandra	horizontal partitioning	horizontal partitioning
Replication methods Methods for redundantly storing data on multiple nodes	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	Eventual Consistency based on Cassandra Immediate Consistency based on Cassandra	Immediate Consistency
Foreign keys Referential integrity	no	no	yes
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	yes	no	ACID
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.		no
User concepts Access control	Users with fine-grained authorization concept, user roles	no	yes	yes
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More resources
	Databend	Hawkular Metrics	Transwarp KunDB	Transwarp StellarDB
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