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DBMS > Amazon CloudSearch vs. Druid vs. RocksDB

System Properties Comparison Amazon CloudSearch vs. Druid vs. RocksDB

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Editorial information provided by DB-Engines
NameAmazon CloudSearch  Xexclude from comparisonDruid  Xexclude from comparisonRocksDB  Xexclude from comparison
DescriptionA hosted search engine service by Amazon with the data stored in Amazons cloudOpen-source analytics data store designed for OLAP queries on timeseries dataEmbeddable persistent key-value store optimized for fast storage (flash and RAM)
Primary database modelSearch engineRelational DBMS
Time Series DBMS
Key-value store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score3.17
Rank#85  Overall
#9  Search engines
Score1.79
Rank#117  Overall
#58  Relational DBMS
#7  Time Series DBMS
Score2.52
Rank#103  Overall
#19  Key-value stores
Websiteaws.amazon.com/­cloudsearchdruid.apache.orgrocksdb.org
Technical documentationdocs.aws.amazon.com/­cloudsearchdruid.apache.org/­docs/­latest/­designgithub.com/­facebook/­rocksdb/­wiki
DeveloperAmazonMetamarkets Group and contributorsFacebook, Inc.
Initial release201220122013
Current release6.3.6, October 2019
License infoCommercial or Open SourcecommercialOpen Source infoApache license v2Open Source infoBSD
Cloud-based only infoOnly available as a cloud serviceyesnono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaC++
Server operating systemshostedLinux
OS X
Unix
Data schemeyesyes infoschema-less columns are supportedschema-free
Typing infopredefined data types such as float or dateyesyesno
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.nono
Secondary indexesyes infoall search fields are automatically indexedyesno
SQL infoSupport of SQLnoSQL support via Apache Calcite adapterno
APIs and other access methodsHTTP APIJSON over HTTPC++ API
Java API
Supported programming languagesClojure
JavaScript
PHP
Python
R
Ruby
Scala
C++
Java
Server-side scripts infoStored proceduresnonono
Triggersnonono
Partitioning methods infoMethods for storing different data on different nodesyes infoautomatic partitioning across Amazon Search Instance as requiredShardingnone
Replication methods infoMethods for redundantly storing data on multiple nodesyes infomanaged transparently by AWSyes, via HDFS, S3 or other storage enginesnone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate Consistency
Foreign keys infoReferential integritynonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanonoyes
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyes
User concepts infoAccess controlauthentication via encrypted signaturesno infoavailable via extensionsno

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More resources
Amazon CloudSearchDruidRocksDB
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