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DBMS > eXtremeDB vs. Graphite vs. Kdb

System Properties Comparison eXtremeDB vs. Graphite vs. Kdb

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Editorial information provided by DB-Engines
NameeXtremeDB  Xexclude from comparisonGraphite  Xexclude from comparisonKdb  Xexclude from comparison
DescriptionNatively in-memory DBMS with options for persistency, high-availability and clusteringData logging and graphing tool for time series data infoThe storage layer (fixed size database) is called WhisperHigh performance Time Series DBMS
Primary database modelRelational DBMS
Time Series DBMS
Time Series DBMSTime Series DBMS
Vector DBMS
Secondary database modelsRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.94
Rank#193  Overall
#89  Relational DBMS
#18  Time Series DBMS
Score4.38
Rank#63  Overall
#4  Time Series DBMS
Score6.79
Rank#50  Overall
#2  Time Series DBMS
#3  Vector DBMS
Websitewww.mcobject.comgithub.com/­graphite-project/­graphite-webkx.com
Technical documentationwww.mcobject.com/­docs/­extremedb.htmgraphite.readthedocs.iocode.kx.com
DeveloperMcObjectChris DavisKx Systems, a division of First Derivatives plc
Initial release200120062000 infokdb was released 2000, kdb+ in 2003
Current release8.2, 20213.6, May 2018
License infoCommercial or Open SourcecommercialOpen Source infoApache 2.0commercial infofree 32-bit version
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageC and C++Pythonq
Server operating systemsAIX
HP-UX
Linux
macOS
Solaris
Windows
Linux
Unix
Linux
OS X
Solaris
Windows
Data schemeyesyesyes
Typing infopredefined data types such as float or dateyesNumeric data onlyyes
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.no infosupport of XML interfaces availablenoyes
Secondary indexesyesnoyes infotable attribute 'grouped'
SQL infoSupport of SQLyes infowith the option: eXtremeSQLnoSQL-like query language (q)
APIs and other access methods.NET Client API
JDBC
JNI
ODBC
Proprietary protocol
RESTful HTTP API
HTTP API
Sockets
HTTP API
JDBC
Jupyter
Kafka
ODBC
WebSocket
Supported programming languages.Net
C
C#
C++
Java
Lua
Python
Scala
JavaScript (Node.js)
Python
C
C#
C++
Go
J
Java
JavaScript
Lua
MatLab
Perl
PHP
Python
R
Scala
Server-side scripts infoStored proceduresyesnouser defined functions
Triggersyes infoby defining eventsnoyes infowith views
Partitioning methods infoMethods for storing different data on different nodeshorizontal partitioning / shardingnonehorizontal partitioning
Replication methods infoMethods for redundantly storing data on multiple nodesActive Replication Fabric™ for IoT
Multi-source replication infoby means of eXtremeDB Cluster option
Source-replica replication infoby means of eXtremeDB High Availability option
noneSource-replica replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono infosimilar paradigm used for internal processing
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencynoneImmediate Consistency
Foreign keys infoReferential integrityyesnoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDnono
Concurrency infoSupport for concurrent manipulation of datayes infoOptimistic (MVCC) and pessimistic (locking) strategies availableyes infolockingyes
Durability infoSupport for making data persistentyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyes
User concepts infoAccess controlnorights management via user accounts
More information provided by the system vendor
eXtremeDBGraphiteKdb
Specific characteristicsIntegrated columnar database & programming system for streaming, real time and historical...
» more
Competitive advantagesprovides seamless scalability; runs on industry standard server platforms; is top-ranked...
» more
Typical application scenariostick database streaming sensor data massive intelligence applications oil and gas...
» more
Key customersGoldman Sachs Morgan Stanley Merrill Lynch J.P. Morgan Deutsche Bank IEX Securities...
» more
Market metricskdb+ performance and reliability proven by our customers in critical infrastructure...
» more
Licensing and pricing modelsupon request
» more

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More resources
eXtremeDBGraphiteKdb
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