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DBMS > IRONdb vs. Kyligence Enterprise vs. Memcached vs. VelocityDB vs. Yaacomo

System Properties Comparison IRONdb vs. Kyligence Enterprise vs. Memcached vs. VelocityDB vs. Yaacomo

Editorial information provided by DB-Engines
NameIRONdb  Xexclude from comparisonKyligence Enterprise  Xexclude from comparisonMemcached  Xexclude from comparisonVelocityDB  Xexclude from comparisonYaacomo  Xexclude from comparison
IRONdb seems to be discontinued. Therefore it is excluded from the DB-Engines Ranking.Yaacomo seems to be discontinued and is removed from the DB-Engines ranking
DescriptionA distributed Time Series DBMS with a focus on scalability, fault tolerance and operational simplicityA distributed analytics engine for big data, built on top of Apache KylinIn-memory key-value store, originally intended for cachingA .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)OpenCL based in-memory RDBMS, designed for efficiently utilizing the hardware via parallel computing
Primary database modelTime Series DBMSRelational DBMSKey-value storeGraph DBMS
Object oriented DBMS
Relational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.46
Rank#266  Overall
#124  Relational DBMS
Score18.08
Rank#32  Overall
#4  Key-value stores
Score0.11
Rank#354  Overall
#37  Graph DBMS
#15  Object oriented DBMS
Websitewww.circonus.com/solutions/time-series-database/kyligence.io/­kyligence-enterprisewww.memcached.orgvelocitydb.comyaacomo.com
Technical documentationdocs.circonus.com/irondb/category/getting-startedgithub.com/­memcached/­memcached/­wikivelocitydb.com/­UserGuide
DeveloperCirconus LLC.Kyligence, Inc.Danga Interactive infooriginally developed by Brad Fitzpatrick for LiveJournalVelocityDB IncQ2WEB GmbH
Initial release20172016200320112009
Current releaseV0.10.20, January 20181.6.27, May 20247.x
License infoCommercial or Open SourcecommercialcommercialOpen Source infoBSD licensecommercialcommercial
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 languageC and C++JavaCC#
Server operating systemsLinuxLinuxFreeBSD
Linux
OS X
Unix
Windows
Any that supports .NETAndroid
Linux
Windows
Data schemeschema-freeyesschema-freeyesyes
Typing infopredefined data types such as float or dateyes infotext, numeric, histogramsyesnoyesyes
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.nononono
Secondary indexesnoyesnoyesyes
SQL infoSupport of SQLSQL-like query language (Circonus Analytics Query Language: CAQL)ANSI SQL for queries (using Apache Calcite)nonoyes
APIs and other access methodsHTTP APIJDBC
ODBC
RESTful HTTP API
Proprietary protocol.NetJDBC
ODBC
Supported programming languages.Net
C
C++
Clojure
Erlang
Go
Haskell
Java
JavaScript
JavaScript (Node.js)
Lisp
Lua
Perl
PHP
Python
R
Ruby
Rust
Scala
.Net
C
C++
ColdFusion
Erlang
Java
Lisp
Lua
OCaml
Perl
PHP
Python
Ruby
.Net
Server-side scripts infoStored proceduresyes, in Luanono
TriggersnonoCallbacks are triggered when data changesyes
Partitioning methods infoMethods for storing different data on different nodesAutomatic, metric affinity per nodenoneShardinghorizontal partitioning
Replication methods infoMethods for redundantly storing data on multiple nodesconfigurable replication factor, datacenter awarenone infoRepcached, a Memcached patch, provides this functionallitySource-replica replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyesnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate consistency per node, eventual consistency across nodesImmediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynononoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanonoACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyesyes
Durability infoSupport for making data persistentyesyesnoyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.nonoyesyes
User concepts infoAccess controlnoyes infousing SASL (Simple Authentication and Security Layer) protocolBased on Windows Authenticationfine grained access rights according to SQL-standard

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More resources
IRONdbKyligence EnterpriseMemcachedVelocityDBYaacomo
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