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DBMS > Hawkular Metrics vs. ITTIA vs. OpenMLDB vs. Quasardb vs. Realm

System Properties Comparison Hawkular Metrics vs. ITTIA vs. OpenMLDB vs. Quasardb vs. Realm

Editorial information provided by DB-Engines
NameHawkular Metrics  Xexclude from comparisonITTIA  Xexclude from comparisonOpenMLDB  Xexclude from comparisonQuasardb  Xexclude from comparisonRealm  Xexclude from comparison
DescriptionHawkular metrics is the metric storage of the Red Hat sponsored Hawkular monitoring system. It is based on Cassandra.Edge Time Series DBMS with Real-Time Stream ProcessingAn open-source machine learning database that provides a feature platform for training and inferenceDistributed, high-performance timeseries databaseA DBMS built for use on mobile devices that’s a fast, easy to use alternative to SQLite and Core Data
Primary database modelTime Series DBMSTime Series DBMSTime Series DBMSTime Series DBMSDocument store
Secondary database modelsRelational DBMSRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.08
Rank#366  Overall
#39  Time Series DBMS
Score0.44
Rank#267  Overall
#23  Time Series DBMS
Score0.10
Rank#359  Overall
#36  Time Series DBMS
Score0.21
Rank#322  Overall
#29  Time Series DBMS
Score7.41
Rank#52  Overall
#8  Document stores
Websitewww.hawkular.orgwww.ittia.comopenmldb.aiquasar.airealm.io
Technical documentationwww.hawkular.org/­hawkular-metrics/­docs/­user-guideopenmldb.ai/­docs/­zh/­maindoc.quasar.ai/­masterrealm.io/­docs
DeveloperCommunity supported by Red HatITTIA L.L.C.4 Paradigm Inc.quasardbRealm, acquired by MongoDB in May 2019
Initial release20142007202020092014
Current release8.72024-2 February 20243.14.1, January 2024
License infoCommercial or Open SourceOpen Source infoApache 2.0commercialOpen Sourcecommercial infoFree community edition, Non-profit organizations and non-commercial usage are eligible for free licensesOpen Source
Cloud-based only infoOnly available as a cloud servicenonononono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageJavaC and C++C++, Java, ScalaC++
Server operating systemsLinux
OS X
Windows
Linux
Windows
LinuxBSD
Linux
OS X
Windows
Android
Backend: server-less
iOS
Windows
Data schemeschema-freeFixed schemaFixed schemaschema-freeyes
Typing infopredefined data types such as float or dateyesFloat/Blob/Integer/String/Unicode/Date/Time/Timestamp/Intervalyesyes infointeger and binaryyes
XML support infoSome form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.nonononono
Secondary indexesnoyesyesyes infowith tagsyes
SQL infoSupport of SQLnoyesyesSQL-like query languageno
APIs and other access methodsHTTP RESTJDBC
ODBC
RESTful HTTP API
WebSocket
JDBC
SQLAlchemy
HTTP API
Supported programming languagesGo
Java
Python
Ruby
C
C++
JavaScript (Node.js)
Python
C++
Go
Java
Python
Scala
.Net
C
C#
C++
Go
Java
JavaScript (Node.js)
PHP
Python
R
.Net
Java infowith Android only
Objective-C
React Native
Swift
Server-side scripts infoStored proceduresnoyesnonono inforuns within the applications so server-side scripts are unnecessary
Triggersyes infovia Hawkular Alertingnononoyes infoChange Listeners
Partitioning methods infoMethods for storing different data on different nodesSharding infobased on Cassandrahorizontal partitioningSharding infoconsistent hashingnone
Replication methods infoMethods for redundantly storing data on multiple nodesselectable replication factor infobased on CassandrayesSource-replica replicationSource-replica replication with selectable replication factornone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonowith Hadoop integrationno
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency infobased on Cassandra
Immediate Consistency infobased on Cassandra
Immediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynoyesnonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoyesnoACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyes, multi-version concurrency control (MVCC)yesyes
Durability infoSupport for making data persistentyesyesyesyes infoby using LevelDByes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyesyesyes infoTransient modeyes infoIn-Memory realm
User concepts infoAccess controlnoDatabase file passwordsfine grained access rights according to SQL-standardCryptographically strong user authentication and audit trailyes

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More resources
Hawkular MetricsITTIAOpenMLDBQuasardbRealm
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