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DBMS > Dragonfly vs. LevelDB vs. OpenTSDB vs. Oracle Coherence vs. TDengine

System Properties Comparison Dragonfly vs. LevelDB vs. OpenTSDB vs. Oracle Coherence vs. TDengine

Editorial information provided by DB-Engines
NameDragonfly  Xexclude from comparisonLevelDB  Xexclude from comparisonOpenTSDB  Xexclude from comparisonOracle Coherence  Xexclude from comparisonTDengine  Xexclude from comparison
DescriptionA drop-in Redis replacement that scales vertically to support millions of operations per second and terabyte sized workloads, all on a single instanceEmbeddable fast key-value storage library that provides an ordered mapping from string keys to string valuesScalable Time Series DBMS based on HBaseOracles in-memory data grid solutionTime Series DBMS and big data platform
Primary database modelKey-value storeKey-value storeTime Series DBMSKey-value storeTime Series DBMS
Secondary database modelsRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.41
Rank#266  Overall
#38  Key-value stores
Score2.35
Rank#111  Overall
#19  Key-value stores
Score1.68
Rank#146  Overall
#12  Time Series DBMS
Score1.92
Rank#130  Overall
#22  Key-value stores
Score2.60
Rank#107  Overall
#8  Time Series DBMS
Websitegithub.com/­dragonflydb/­dragonfly
www.dragonflydb.io
github.com/­google/­leveldbopentsdb.netwww.oracle.com/­java/­coherencegithub.com/­taosdata/­TDengine
tdengine.com
Technical documentationwww.dragonflydb.io/­docsgithub.com/­google/­leveldb/­blob/­main/­doc/­index.mdopentsdb.net/­docs/­build/­html/­index.htmldocs.oracle.com/­en/­middleware/­standalone/­coherencedocs.tdengine.com
DeveloperDragonflyDB team and community contributorsGooglecurrently maintained by Yahoo and other contributorsOracleTDEngine, previously Taos Data
Initial release20232011201120072019
Current release1.0, March 20231.23, February 202114.1, August 20233.0, August 2022
License infoCommercial or Open SourceOpen Source infoBSL 1.1Open Source infoBSDOpen Source infoLGPLcommercialOpen Source infoAGPL V3, also commercial editions available
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++C++JavaJavaC
Server operating systemsLinuxIllumos
Linux
OS X
Windows
Linux
Windows
All OS with a Java VMLinux
Windows
Data schemescheme-freeschema-freeschema-freeschema-freeyes
Typing infopredefined data types such as float or datestrings, hashes, lists, sets, sorted sets, bit arraysnonumeric data for metrics, strings for tagsyesyes
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.nonononono
Secondary indexesnonononono
SQL infoSupport of SQLnonononoStandard SQL with extensions for time-series applications
APIs and other access methodsProprietary protocol infoRESP - REdis Serialization ProtocolHTTP API
Telnet API
JCache
JPA
RESTful HTTP API
JDBC
RESTful HTTP API
Supported programming languagesC
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
C++
Go
Java info3rd party binding
JavaScript (Node.js) info3rd party binding
Python info3rd party binding
Erlang
Go
Java
Python
R
Ruby
.Net
C++
Java
C
C#
C++
Go
Java
JavaScript (Node.js)
PHP
Python
Rust
Server-side scripts infoStored proceduresLuanononono
Triggerspublish/subscribe channels provide some trigger functionalitynonoyes infoLive Eventsyes, via alarm monitoring
Partitioning methods infoMethods for storing different data on different nodesnoneSharding infobased on HBaseShardingSharding
Replication methods infoMethods for redundantly storing data on multiple nodesSource-replica replicationnoneselectable replication factor infobased on HBaseyes, with selectable consistency levelyes
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual ConsistencyImmediate ConsistencyImmediate Consistency infobased on HBaseEventual Consistency
Immediate Consistency
Foreign keys infoReferential integritynonononono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataAtomic execution of command blocks and scriptsnonoconfigurable
Concurrency infoSupport for concurrent manipulation of datayes, strict serializability by the serveryesyesyesyes
Durability infoSupport for making data persistentyesyes infowith automatic compression on writesyesyes infooptionallyyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesnoyes
User concepts infoAccess controlPassword-based authenticationnonoauthentification to access the cache via certificates or http basic authenticationyes
More information provided by the system vendor
DragonflyLevelDBOpenTSDBOracle CoherenceTDengine
Specific characteristicsTDengine™ is a next generation data historian purpose-built for Industry 4.0 and...
» more
Competitive advantagesHigh Performance at any Scale: TDengine is purpose-built for handling massive industrial...
» more
Typical application scenariosTDengine is designed for Industrial IoT scenarios, including: Manufacturing Connected...
» more
Market metricsTDengine has garnered over 22,500 stars on GitHub and is used in over 50 countries...
» more
Licensing and pricing modelsTDengine OSS is an open source, cloud native time series database. It includes built-in...
» more
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More resources
DragonflyLevelDBOpenTSDBOracle CoherenceTDengine
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