DBMS > Geode vs. Splunk vs. Tkrzw vs. Yaacomo

System Properties Comparison Geode vs. Splunk vs. Tkrzw vs. Yaacomo

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Editorial information provided by DB-Engines
Name	Geode  Xexclude from comparison	Splunk  Xexclude from comparison	Tkrzw Successor of Tokyo Cabinet and Kyoto Cabinet  Xexclude from comparison	Yaacomo  Xexclude from comparison
Description	Geode is a distributed data container, pooling memory, CPU, network resources, and optionally local disk across multiple processes	Analytics Platform for Big Data	A concept of libraries, allowing an application program to store and query key-value pairs in a file. Successor of Tokyo Cabinet and Kyoto Cabinet	OpenCL based in-memory RDBMS, designed for efficiently utilizing the hardware via parallel computing
Primary database model	Key-value store	Search engine	Key-value store	Relational DBMS
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 1.67 Rank #138   Overall #26   Key-value stores	Score 98.21 Rank #14   Overall #2   Search engines	Score 0.00 Rank #356   Overall #57   Key-value stores	Score 0.00 Rank #356   Overall #155   Relational DBMS
Website	geode.apache.org	www.splunk.com	dbmx.net/­tkrzw	yaacomo.com
Technical documentation	geode.apache.org/­docs	docs.splunk.com/­Documentation/­Splunk
Developer	Originally developed by Gemstone. They outsourced the project to Apache in 2015 but still deliver a commercial version as Gemfire.	Splunk Inc.	Mikio Hirabayashi	Q2WEB GmbH
Initial release	2002	2003	2020	2009
Current release	1.1, February 2017		0.9.3, August 2020
License Commercial or Open Source	Open Source Apache Version 2; commercial licenses available as Gemfire	commercial Limited free edition and free developer edition available	Open Source Apache Version 2.0	commercial
Cloud-based only Only available as a cloud service	no	no	no	no
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Implementation language	Java		C++
Server operating systems	All OS with a Java VM the JDK (8 or later) is also required	Linux OS X Solaris Windows	Linux macOS	Android Linux Windows
Data scheme	schema-free	yes	schema-free	yes
Typing predefined data types such as float or date	yes	yes	no	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	no	no
Secondary indexes	no	yes		yes
SQL Support of SQL	SQL-like query language (OQL)	no Splunk Search Processing Language for search commands	no	yes
APIs and other access methods	Java Client API Memcached protocol RESTful HTTP API	HTTP REST		JDBC ODBC
Supported programming languages	.Net All JVM based languages C++ Groovy Java Scala	C# Java JavaScript PHP Python Ruby	C++ Java Python Ruby
Server-side scripts Stored procedures	user defined functions	yes	no
Triggers	yes Cache Event Listeners	yes	no	yes
Partitioning methods Methods for storing different data on different nodes	Sharding	Sharding	none	horizontal partitioning
Replication methods Methods for redundantly storing data on multiple nodes	Multi-source replication	Multi-source replication	none	Source-replica replication
MapReduce Offers an API for user-defined Map/Reduce methods	no	yes	no	no
Consistency concepts Methods to ensure consistency in a distributed system	Eventual Consistency	Eventual Consistency	Immediate Consistency	Immediate Consistency
Foreign keys Referential integrity	no	no	no	yes
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	yes, on a single node	no A 'Transaction' in Splunk has a different meaning: grouping related events into a single one for later searching		ACID
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.	yes	no	yes using specific database classes	yes
User concepts Access control	Access rights per client and object definable	Access rights for users and roles	no	fine grained access rights according to SQL-standard
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	Geode	Splunk	Tkrzw Successor of Tokyo Cabinet and Kyoto Cabinet	Yaacomo
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