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DBMS > HarperDB vs. Memcached vs. OpenTSDB

System Properties Comparison HarperDB vs. Memcached vs. OpenTSDB

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Editorial information provided by DB-Engines
NameHarperDB  Xexclude from comparisonMemcached  Xexclude from comparisonOpenTSDB  Xexclude from comparison
DescriptionUltra-low latency distributed database with an intuitive REST API supporting NoSQL and SQL (including joins). Deployment of functions and databases simultaneously with a consolidated node-level architecture.In-memory key-value store, originally intended for cachingScalable Time Series DBMS based on HBase
Primary database modelDocument storeKey-value storeTime Series DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.55
Rank#252  Overall
#38  Document stores
Score20.74
Rank#32  Overall
#4  Key-value stores
Score1.73
Rank#147  Overall
#12  Time Series DBMS
Websitewww.harperdb.iowww.memcached.orgopentsdb.net
Technical documentationdocs.harperdb.io/­docsgithub.com/­memcached/­memcached/­wikiopentsdb.net/­docs/­build/­html/­index.html
DeveloperHarperDBDanga Interactive infooriginally developed by Brad Fitzpatrick for LiveJournalcurrently maintained by Yahoo and other contributors
Initial release201720032011
Current release3.1, August 20211.6.25, March 2024
License infoCommercial or Open Sourcecommercial infofree community edition availableOpen Source infoBSD licenseOpen Source infoLGPL
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageNode.jsCJava
Server operating systemsLinux
OS X
FreeBSD
Linux
OS X
Unix
Windows
Linux
Windows
Data schemedynamic schemaschema-freeschema-free
Typing infopredefined data types such as float or dateyes infoJSON data typesnonumeric data for metrics, strings for tags
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 indexesyesnono
SQL infoSupport of SQLSQL-like data manipulation statementsnono
APIs and other access methodsJDBC
ODBC
React Hooks
RESTful HTTP/JSON API
WebSocket
Proprietary protocolHTTP API
Telnet API
Supported programming languages.Net
C
C#
C++
ColdFusion
D
Dart
Delphi
Erlang
Go
Haskell
Java
JavaScript (Node.js)
Lisp
MatLab
Objective C
Perl
PHP
PowerShell
Prolog
Python
R
Ruby
Rust
Scala
Swift
.Net
C
C++
ColdFusion
Erlang
Java
Lisp
Lua
OCaml
Perl
PHP
Python
Ruby
Erlang
Go
Java
Python
R
Ruby
Server-side scripts infoStored proceduresCustom Functions infosince release 3.1nono
Triggersnonono
Partitioning methods infoMethods for storing different data on different nodesA table resides as a whole on one (or more) nodes in a clusternoneSharding infobased on HBase
Replication methods infoMethods for redundantly storing data on multiple nodesyes infothe nodes on which a table resides can be definednone infoRepcached, a Memcached patch, provides this functionallityselectable replication factor infobased on HBase
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate Consistency infobased on HBase
Foreign keys infoReferential integritynonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataAtomic execution of specific operationsnono
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyes, using LMDBnoyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesno
User concepts infoAccess controlAccess rights for users and rolesyes infousing SASL (Simple Authentication and Security Layer) protocolno

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More resources
HarperDBMemcachedOpenTSDB
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Recent citations in the news

Startups of the Year 2023: Meet HarperDB - A Database and Application Development Platform
22 June 2023, hackernoon.com

Unlocking immersive golfing experiences with AWS Wavelength | Amazon Web Services
29 November 2022, AWS Blog

HarperDB: An underdog SQL / NoSQL database | ZDNET
7 February 2018, ZDNet

HarperDB is More Than Just a Database: Here's Why
21 August 2021, hackernoon.com

Stephen Goldberg Named 2023 Bill Daniels Ethical Leader of the Year | CU Denver Business School News
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1 March 2018, ZDNet

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14 September 2017, InfoWorld

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