DBMS > Ignite vs. Kdb vs. SpaceTime
System Properties Comparison Ignite vs. Kdb vs. SpaceTime
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|Editorial information provided by DB-Engines|
|Name||Ignite Xexclude from comparison||Kdb Xexclude from comparison||SpaceTime Xexclude from comparison|
|Description||Apache Ignite is a memory-centric distributed database, caching, and processing platform for transactional, analytical, and streaming workloads, delivering in-memory speeds at petabyte scale.||High performance Time Series DBMS||SpaceTime is a spatio-temporal DBMS with a focus on performance.|
|Primary database model||Key-value store|
|Time Series DBMS|
|Secondary database models||Relational DBMS||Relational DBMS|
|Developer||Apache Software Foundation||Kx Systems, a division of First Derivatives plc||Mireo|
|Initial release||2015||2000 kdb was released 2000, kdb+ in 2003||2020|
|Current release||Apache Ignite 2.6||3.6, May 2018|
|License Commercial or Open Source||Open Source Apache 2.0||commercial free 32-bit version||commercial|
|Cloud-based only Only available as a cloud service||no||no||no|
|DBaaS offerings (sponsored links) Database as a Service|
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|Implementation language||C++, Java, .Net||q||C++|
|Server operating systems||Linux|
|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.||yes||yes||no|
|Secondary indexes||yes||yes table attribute 'grouped'||no|
|SQL Support of SQL||ANSI-99 for query and DML statements, subset of DDL||SQL-like query language (q)||A subset of ANSI SQL is implemented|
|APIs and other access methods||HDFS API|
RESTful HTTP API
|RESTful HTTP API|
|Supported programming languages||C#|
|Server-side scripts Stored procedures||yes (compute grid and cache interceptors can be used instead)||user defined functions||no|
|Triggers||yes (cache interceptors and events)||yes with views||no|
|Partitioning methods Methods for storing different data on different nodes||Sharding||horizontal partitioning||Fixed-grid hypercubes|
|Replication methods Methods for redundantly storing data on multiple nodes||yes (replicated cache)||Source-replica replication||Real-time block device replication (DRBD)|
|MapReduce Offers an API for user-defined Map/Reduce methods||yes (compute grid and hadoop accelerator)||no similar paradigm used for internal processing||no|
|Consistency concepts Methods to ensure consistency in a distributed system||Immediate Consistency||Immediate Consistency||Immediate Consistency|
|Foreign keys Referential integrity||no||yes||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||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||yes||no|
|User concepts Access control||Security Hooks for custom implementations||rights management via user accounts||yes|
|More information provided by the system vendor|
|Specific characteristics||Integrated columnar database & programming system for streaming, real time and historical...|
|Competitive advantages||provides seamless scalability; runs on industry standard server platforms; is top-ranked...|
|Typical application scenarios||tick database streaming sensor data massive intelligence applications oil and gas...|
|Key customers||Goldman Sachs Morgan Stanley Merrill Lynch J.P. Morgan Deutsche Bank IEX Securities...|
|Market metrics||kdb+ performance and reliability proven by our customers in critical infrastructure...|
|Licensing and pricing models||upon request|
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