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DBMS > Amazon CloudSearch vs. Apache Doris vs. Blueflood vs. Dragonfly vs. EXASOL

System Properties Comparison Amazon CloudSearch vs. Apache Doris vs. Blueflood vs. Dragonfly vs. EXASOL

Editorial information provided by DB-Engines
NameAmazon CloudSearch  Xexclude from comparisonApache Doris  Xexclude from comparisonBlueflood  Xexclude from comparisonDragonfly  Xexclude from comparisonEXASOL  Xexclude from comparison
DescriptionA hosted search engine service by Amazon with the data stored in Amazons cloudAn MPP-based analytics DBMS embracing the MySQL protocolScalable TimeSeries DBMS based on CassandraA drop-in Redis replacement that scales vertically to support millions of operations per second and terabyte sized workloads, all on a single instanceHigh-performance, in-memory, MPP database specifically designed for in-memory analytics.
Primary database modelSearch engineRelational DBMSTime Series DBMSKey-value storeRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.85
Rank#137  Overall
#12  Search engines
Score0.57
Rank#244  Overall
#113  Relational DBMS
Score0.06
Rank#353  Overall
#34  Time Series DBMS
Score0.41
Rank#266  Overall
#38  Key-value stores
Score1.99
Rank#124  Overall
#58  Relational DBMS
Websiteaws.amazon.com/­cloudsearchdoris.apache.org
github.com/­apache/­doris
blueflood.iogithub.com/­dragonflydb/­dragonfly
www.dragonflydb.io
www.exasol.com
Technical documentationdocs.aws.amazon.com/­cloudsearchgithub.com/­apache/­doris/­wikigithub.com/­rax-maas/­blueflood/­wikiwww.dragonflydb.io/­docswww.exasol.com/­resources
DeveloperAmazonApache Software Foundation, originally contributed from BaiduRackspaceDragonflyDB team and community contributorsExasol
Initial release20122017201320232000
Current release1.2.2, February 20231.0, March 2023
License infoCommercial or Open SourcecommercialOpen Source infoApache Version 2.0Open Source infoApache 2.0Open Source infoBSL 1.1commercial
Cloud-based only infoOnly available as a cloud serviceyesnononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaJavaC++
Server operating systemshostedLinuxLinux
OS X
Linux
Data schemeyesyespredefined schemescheme-freeyes
Typing infopredefined data types such as float or dateyesyesyesstrings, hashes, lists, sets, sorted sets, bit arraysyes
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 indexesyes infoall search fields are automatically indexedyesnonoyes
SQL infoSupport of SQLnoyesnonoyes
APIs and other access methodsHTTP APIJDBC
MySQL client
HTTP RESTProprietary protocol infoRESP - REdis Serialization Protocol.Net
JDBC
ODBC
WebSocket
Supported programming languagesJavaC
C#
C++
Clojure
D
Dart
Elixir
Erlang
Go
Haskell
Java
JavaScript (Node.js)
Lisp
Lua
Objective-C
Perl
PHP
Python
R
Ruby
Rust
Scala
Swift
Tcl
Java
Lua
Python
R
Server-side scripts infoStored proceduresnouser defined functionsnoLuauser defined functions
Triggersnononopublish/subscribe channels provide some trigger functionalityyes
Partitioning methods infoMethods for storing different data on different nodesyes infoautomatic partitioning across Amazon Search Instance as requiredhorizontal partitioningSharding infobased on CassandraSharding
Replication methods infoMethods for redundantly storing data on multiple nodesyes infomanaged transparently by AWSnoneselectable replication factor infobased on CassandraSource-replica replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonononoyes infoHadoop integration
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyEventual Consistency infobased on Cassandra
Immediate Consistency infobased on Cassandra
Eventual ConsistencyImmediate Consistency
Foreign keys infoReferential integritynonononoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanonoAtomic execution of command blocks and scriptsACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes, strict serializability by the serveryes
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.nonoyesyes
User concepts infoAccess controlauthentication via encrypted signaturesfine grained access rights according to SQL-standardnoPassword-based authenticationAccess rights for users, groups and roles according to SQL-standard

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More resources
Amazon CloudSearchApache DorisBluefloodDragonflyEXASOL
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