DBMS > Hawkular Metrics vs. Microsoft Azure Data Explorer vs. Postgres-XL vs. Transbase

System Properties Comparison Hawkular Metrics vs. Microsoft Azure Data Explorer vs. Postgres-XL vs. Transbase

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Editorial information provided by DB-Engines
Name	Hawkular Metrics  Xexclude from comparison	Microsoft Azure Data Explorer  Xexclude from comparison	Postgres-XL  Xexclude from comparison	Transbase  Xexclude from comparison
Description	Hawkular metrics is the metric storage of the Red Hat sponsored Hawkular monitoring system. It is based on Cassandra.	Fully managed big data interactive analytics platform	Based on PostgreSQL enhanced with MPP and write-scale-out cluster features	A resource-optimized, high-performance, universally applicable RDBMS
Primary database model	Time Series DBMS	Relational DBMS column oriented	Relational DBMS	Relational DBMS
Secondary database models		Document store If a column is of type dynamic docs.microsoft.com/­en-us/­azure/­kusto/­query/­scalar-data-types/­dynamic then it's possible to add arbitrary JSON documents in this cell Event Store this is the general usage pattern at Microsoft. Billing, Logs, Telemetry events are stored in ADX and the state of an individual entity is defined by the arg_max(timestamps) Spatial DBMS Search engine support for complex search expressions docs.microsoft.com/­en-us/­azure/­kusto/­query/­parseoperator FTS, Geospatial docs.microsoft.com/­en-us/­azure/­kusto/­query/­geo-point-to-geohash-function distributed search -> ADX acts as a distributed search engine Time Series DBMS see docs.microsoft.com/­en-us/­azure/­data-explorer/­time-series-analysis	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 3.80 Rank #81   Overall #43   Relational DBMS	Score 0.53 Rank #254   Overall #117   Relational DBMS	Score 0.17 Rank #334   Overall #148   Relational DBMS
Website	www.hawkular.org	azure.microsoft.com/­services/­data-explorer	www.postgres-xl.org	www.transaction.de/­en/­products/­transbase.html
Technical documentation	www.hawkular.org/­hawkular-metrics/­docs/­user-guide	docs.microsoft.com/­en-us/­azure/­data-explorer	www.postgres-xl.org/­documentation	www.transaction.de/­en/­products/­transbase/­features.html
Developer	Community supported by Red Hat	Microsoft		Transaction Software GmbH
Initial release	2014	2019	2014 since 2012, originally named StormDB	1987
Current release		cloud service with continuous releases	10 R1, October 2018	Transbase 8.3, 2022
License Commercial or Open Source	Open Source Apache 2.0	commercial	Open Source Mozilla public license	commercial free development license
Cloud-based only Only available as a cloud service	no	yes	no	no
DBaaS offerings (sponsored links) Database as a Service Providers of DBaaS offerings, please contact us to be listed.
Implementation language	Java		C	C and C++
Server operating systems	Linux OS X Windows	hosted	Linux macOS	FreeBSD Linux macOS Solaris Windows
Data scheme	schema-free	Fixed schema with schema-less datatypes (dynamic)	yes	yes
Typing predefined data types such as float or date	yes	yes bool, datetime, dynamic, guid, int, long, real, string, timespan, double: docs.microsoft.com/­en-us/­azure/­kusto/­query/­scalar-data-types	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	yes	yes XML type, but no XML query functionality	no
Secondary indexes	no	all fields are automatically indexed	yes	yes
SQL Support of SQL	no	Kusto Query Language (KQL), SQL subset	yes distributed, parallel query execution	yes
APIs and other access methods	HTTP REST	Microsoft SQL Server communication protocol (MS-TDS) RESTful HTTP API	ADO.NET JDBC native C library ODBC streaming API for large objects	ADO.NET JDBC ODBC Proprietary native API
Supported programming languages	Go Java Python Ruby	.Net Go Java JavaScript (Node.js) PowerShell Python R	.Net C C++ Delphi Erlang Java JavaScript (Node.js) Perl PHP Python Tcl	C C# C++ Java JavaScript Kotlin Objective-C PHP Python
Server-side scripts Stored procedures	no	Yes, possible languages: KQL, Python, R	user defined functions	yes
Triggers	yes via Hawkular Alerting	yes see docs.microsoft.com/­en-us/­azure/­kusto/­management/­updatepolicy	yes	yes
Partitioning methods Methods for storing different data on different nodes	Sharding based on Cassandra	Sharding Implicit feature of the cloud service	horizontal partitioning
Replication methods Methods for redundantly storing data on multiple nodes	selectable replication factor based on Cassandra	yes Implicit feature of the cloud service. Replication either local, cross-facility or geo-redundant.		Source-replica replication
MapReduce Offers an API for user-defined Map/Reduce methods	no	Spark connector (open source): github.com/­Azure/­azure-kusto-spark	no	no
Consistency concepts Methods to ensure consistency in a distributed system	Eventual Consistency based on Cassandra Immediate Consistency based on Cassandra	Eventual Consistency Immediate Consistency	Immediate Consistency	Immediate Consistency
Foreign keys Referential integrity	no	no	yes	yes
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	no	no	ACID MVCC	yes
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	no	no	no
User concepts Access control	no	Azure Active Directory Authentication	fine grained access rights according to SQL-standard	fine grained access rights according to SQL-standard
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More resources
	Hawkular Metrics	Microsoft Azure Data Explorer	Postgres-XL	Transbase
Recent citations in the news	Waiting for Red Hat OpenShift 4.0? Too late, 4.1 has already arrived… • DEVCLASS 5 June 2019, DevClass provided by Google News	We’re retiring Azure Time Series Insights on 7 July 2024 – transition to Azure Data Explorer | Azure updates 31 May 2024, Microsoft Update records in a Kusto Database (public preview) | Azure updates 20 February 2024, Microsoft Public Preview: Azure Data Explorer connector for Apache Flink | Azure updates 8 January 2024, Microsoft Announcing General Availability to migrate Virtual Network injected Azure Data Explorer Cluster to Private Endpoints ... 5 February 2024, Microsoft Migration of Azure Virtual Network injected Azure Data Explorer cluster to Private Endpoints | Azure updates 4 December 2023, Microsoft provided by Google News

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