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DBMS > Cachelot.io vs. OpenTSDB vs. Oracle Coherence vs. Quasardb

System Properties Comparison Cachelot.io vs. OpenTSDB vs. Oracle Coherence vs. Quasardb

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Editorial information provided by DB-Engines
NameCachelot.io  Xexclude from comparisonOpenTSDB  Xexclude from comparisonOracle Coherence  Xexclude from comparisonQuasardb  Xexclude from comparison
DescriptionIn-memory caching systemScalable Time Series DBMS based on HBaseOracles in-memory data grid solutionDistributed, high-performance timeseries database
Primary database modelKey-value storeTime Series DBMSKey-value storeTime Series DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.00
Rank#383  Overall
#60  Key-value stores
Score1.68
Rank#146  Overall
#12  Time Series DBMS
Score1.92
Rank#130  Overall
#22  Key-value stores
Score0.14
Rank#332  Overall
#29  Time Series DBMS
Websitecachelot.ioopentsdb.netwww.oracle.com/­java/­coherencequasar.ai
Technical documentationopentsdb.net/­docs/­build/­html/­index.htmldocs.oracle.com/­en/­middleware/­standalone/­coherencedoc.quasar.ai/­master
Developercurrently maintained by Yahoo and other contributorsOraclequasardb
Initial release2015201120072009
Current release14.1, August 20233.14.1, January 2024
License infoCommercial or Open SourceOpen Source infoSimplified BSD LicenseOpen Source infoLGPLcommercialcommercial infoFree community edition, Non-profit organizations and non-commercial usage are eligible for free licenses
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageC++JavaJavaC++
Server operating systemsFreeBSD
Linux
OS X
Linux
Windows
All OS with a Java VMBSD
Linux
OS X
Windows
Data schemeschema-freeschema-freeschema-freeschema-free
Typing infopredefined data types such as float or datenonumeric data for metrics, strings for tagsyesyes infointeger and binary
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 indexesnononoyes infowith tags
SQL infoSupport of SQLnononoSQL-like query language
APIs and other access methodsMemcached protocolHTTP API
Telnet API
JCache
JPA
RESTful HTTP API
HTTP API
Supported programming languages.Net
C
C++
ColdFusion
Erlang
Java
Lisp
Lua
OCaml
OCaml
Perl
PHP
Python
Ruby
Erlang
Go
Java
Python
R
Ruby
.Net
C++
Java
.Net
C
C#
C++
Go
Java
JavaScript (Node.js)
PHP
Python
R
Server-side scripts infoStored proceduresnononono
Triggersnonoyes infoLive Eventsno
Partitioning methods infoMethods for storing different data on different nodesnoneSharding infobased on HBaseShardingSharding infoconsistent hashing
Replication methods infoMethods for redundantly storing data on multiple nodesnoneselectable replication factor infobased on HBaseyes, with selectable consistency levelSource-replica replication with selectable replication factor
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononowith Hadoop integration
Consistency concepts infoMethods to ensure consistency in a distributed systemnoneImmediate Consistency infobased on HBaseEventual Consistency
Immediate Consistency
Immediate Consistency
Foreign keys infoReferential integritynononono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanonoconfigurableACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentnoyesyes infooptionallyyes infoby using LevelDB
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.nonoyesyes infoTransient mode
User concepts infoAccess controlnonoauthentification to access the cache via certificates or http basic authenticationCryptographically strong user authentication and audit trail

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More resources
Cachelot.ioOpenTSDBOracle CoherenceQuasardb
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