DBMS > Geode vs. OpenQM
System Properties Comparison Geode vs. OpenQM
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|Editorial information provided by DB-Engines|
|Name||Geode Xexclude from comparison||OpenQM also called QM Xexclude from comparison|
|Description||Geode is a distributed data container, pooling memory, CPU, network resources, and optionally local disk across multiple processes||QpenQM is a high-performance, self-tuning, multi-value DBMS|
|Primary database model||Key-value store||Multivalue DBMS|
|Developer||Originally developed by Gemstone. They outsourced the project to Apache in 2015 but still deliver a commercial version as Gemfire.||Martin Phillips|
|Current release||1.1, February 2017||3.4-12|
|License Commercial or Open Source||Open Source Apache Version 2; commercial licenses available as Gemfire||Open Source GPLv2, extended commercial license available|
|Cloud-based only Only available as a cloud service||no||no|
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|Server operating systems||All OS with a Java VM the JDK (8 or later) is also required||AIX|
|Data scheme||schema-free||yes with some exceptions|
|Typing predefined data types such as float or date||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|
|SQL Support of SQL||SQL-like query language (OQL)||no|
|APIs and other access methods||Java Client API|
RESTful HTTP API
|Supported programming languages||.Net|
All JVM based languages
|Server-side scripts Stored procedures||user defined functions||yes|
|Triggers||yes Cache Event Listeners||yes|
|Partitioning methods Methods for storing different data on different nodes||Sharding||yes|
|Replication methods Methods for redundantly storing data on multiple nodes||Multi-source replication||yes|
|MapReduce Offers an API for user-defined Map/Reduce methods||no||no|
|Consistency concepts Methods to ensure consistency in a distributed system||Eventual Consistency||Immediate Consistency|
|Foreign keys Referential integrity||no||no|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||yes, on a single node||ACID|
|Concurrency Support for concurrent manipulation of data||yes||yes|
|Durability Support for making data persistent||yes||yes|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||yes|
|User concepts Access control||Access rights per client and object definable||Access rights can be defined down to the item level|
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|Geode||OpenQM also called QM|
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