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DBMS > Apache Kylin vs. Blueflood vs. Cassandra vs. EJDB vs. RavenDB

System Properties Comparison Apache Kylin vs. Blueflood vs. Cassandra vs. EJDB vs. RavenDB

Editorial information provided by DB-Engines
NameApache Kylin  Xexclude from comparisonBlueflood  Xexclude from comparisonCassandra  Xexclude from comparisonEJDB  Xexclude from comparisonRavenDB  Xexclude from comparison
DescriptionA distributed analytics engine for big data, providing a SQL interface and multi-dimensional analysis (OLAP) and leveraging the Hadoop stackScalable TimeSeries DBMS based on CassandraWide-column store based on ideas of BigTable and DynamoDB infoOptimized for write accessEmbeddable document-store database library with JSON representation of queries (in MongoDB style)Open Source Operational and Transactional Enterprise NoSQL Document Database
Primary database modelRelational DBMSTime Series DBMSWide column storeDocument storeDocument store
Secondary database modelsVector DBMS infostarting with release V5Graph DBMS
Spatial DBMS
Time Series DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.25
Rank#170  Overall
#77  Relational DBMS
Score0.13
Rank#346  Overall
#33  Time Series DBMS
Score98.83
Rank#12  Overall
#1  Wide column stores
Score0.31
Rank#296  Overall
#44  Document stores
Score2.84
Rank#101  Overall
#18  Document stores
Websitekylin.apache.orgblueflood.iocassandra.apache.orggithub.com/­Softmotions/­ejdbravendb.net
Technical documentationkylin.apache.org/­docsgithub.com/­rax-maas/­blueflood/­wikicassandra.apache.org/­doc/­latestgithub.com/­Softmotions/­ejdb/­blob/­master/­README.mdravendb.net/­docs
DeveloperApache Software Foundation, originally contributed from eBay IncRackspaceApache Software Foundation infoApache top level project, originally developped by FacebookSoftmotionsHibernating Rhinos
Initial release20152013200820122010
Current release3.1.0, July 20204.1.3, July 20235.4, July 2022
License infoCommercial or Open SourceOpen Source infoApache Version 2.0Open Source infoApache 2.0Open Source infoApache version 2Open Source infoGPLv2Open Source infoAGPL version 3, commercial license available
Cloud-based only infoOnly available as a cloud servicenonononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaJavaJavaCC#
Server operating systemsLinuxLinux
OS X
BSD
Linux
OS X
Windows
server-lessLinux
macOS
Raspberry Pi
Windows
Data schemeyespredefined schemeschema-freeschema-freeschema-free
Typing infopredefined data types such as float or dateyesyesyesyes infostring, integer, double, bool, date, object_idno
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.nonono
Secondary indexesyesnorestricted infoonly equality queries, not always the best performing solutionnoyes
SQL infoSupport of SQLANSI SQL for queries (using Apache Calcite)noSQL-like SELECT, DML and DDL statements (CQL)noSQL-like query language (RQL)
APIs and other access methodsJDBC
ODBC
RESTful HTTP API
HTTP RESTProprietary protocol infoCQL (Cassandra Query Language, an SQL-like language)
Thrift
in-process shared library.NET Client API
F# Client API
Go Client API
Java Client API
NodeJS Client API
PHP Client API
Python Client API
RESTful HTTP API
Supported programming languagesC#
C++
Clojure
Erlang
Go
Haskell
Java
JavaScript infoNode.js
Perl
PHP
Python
Ruby
Scala
Actionscript
C
C#
C++
Go
Java
JavaScript (Node.js)
Lua
Objective-C
Pike
Python
Ruby
.Net
C#
F#
Go
Java
JavaScript (Node.js)
PHP
Python
Ruby
Server-side scripts infoStored proceduresnononoyes
Triggersnoyesnoyes
Partitioning methods infoMethods for storing different data on different nodesSharding infobased on CassandraSharding infono "single point of failure"noneSharding
Replication methods infoMethods for redundantly storing data on multiple nodesselectable replication factor infobased on Cassandraselectable replication factor infoRepresentation of geographical distribution of servers is possiblenoneMulti-source replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsyesnoyesnoyes
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyEventual Consistency infobased on Cassandra
Immediate Consistency infobased on Cassandra
Eventual Consistency
Immediate Consistency infocan be individually decided for each write operation
Default ACID transactions on the local node (eventually consistent across the cluster). Atomic operations with cluster-wide ACID transactions. Eventual consistency for indexes and full-text search indexes.
Foreign keys infoReferential integritynonono infotypically not needed, however similar functionality with collection joins possibleno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanono infoAtomicity and isolation are supported for single operationsnoACID, Cluster-wide transaction available
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes infoRead/Write Lockingyes
Durability infoSupport for making data persistentyesyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.nonono
User concepts infoAccess controlnoAccess rights for users can be defined per objectnoAuthorization levels configured per client per database
More information provided by the system vendor
Apache KylinBluefloodCassandraEJDBRavenDB
Specific characteristicsApache Cassandra is the leading NoSQL, distributed database management system, well...
» more
Competitive advantagesNo single point of failure ensures 100% availability . Operational simplicity for...
» more
Typical application scenariosInternet of Things (IOT), fraud detection applications, recommendation engines, product...
» more
Key customersApple, Netflix, Uber, ING,, Intuit,Fidelity, NY Times, Outbrain, BazaarVoice, Best...
» more
Market metricsCassandra is used by 40% of the Fortune 100.
» more
Licensing and pricing modelsApache license  Pricing for commercial distributions provided by DataStax and available...
» more
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