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DBMS > etcd vs. Immudb vs. NSDb

System Properties Comparison etcd vs. Immudb vs. NSDb

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Editorial information provided by DB-Engines
Nameetcd  Xexclude from comparisonImmudb  Xexclude from comparisonNSDb  Xexclude from comparison
DescriptionA distributed reliable key-value storeAn open source immutable (append-only) database with cryptographic verification which makes it tamper-resistant and fully auditable.Scalable, High-performance Time Series DBMS designed for Real-time Analytics on top of Kubernetes
Primary database modelKey-value storeKey-value storeTime Series DBMS
Secondary database modelsRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score7.05
Rank#53  Overall
#5  Key-value stores
Score0.24
Rank#295  Overall
#42  Key-value stores
Score0.00
Rank#385  Overall
#40  Time Series DBMS
Websiteetcd.io
github.com/­etcd-io/­etcd
github.com/­codenotary/­immudb
immudb.io
nsdb.io
Technical documentationetcd.io/­docs
github.com/­etcd-io/­etcd/­tree/­master/­Documentation
docs.immudb.ionsdb.io/­Architecture
DeveloperCodenotary
Initial release20202017
Current release3.4, August 20191.2.3, April 2022
License infoCommercial or Open SourceOpen Source infoApache Version 2.0Open Source infoApache Version 2.0Open Source infoApache Version 2.0
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageGoGoJava, Scala
Server operating systemsFreeBSD
Linux
Windows infoexperimental
BSD
Linux
macOS
Solaris
Windows
z/OS
Linux
macOS
Data schemeschema-freeschema-free
Typing infopredefined data types such as float or datenoyes: int, bigint, decimal, string
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.nonono
Secondary indexesnoyesall fields are automatically indexed
SQL infoSupport of SQLnoSQL-like syntaxSQL-like query language
APIs and other access methodsgRPC
JSON over HTTP
gRPC protocol
PostgreSQL wire protocol
gRPC
HTTP REST
WebSocket
Supported programming languages.Net
C
C++
Clojure
Erlang
Go
Haskell
Java
JavaScript (Node.js)
Perl
PHP
Python
R
Ruby
Rust
Scala
Tcl
.Net
Go
Java
JavaScript (Node.js)
Python
Java
Scala
Server-side scripts infoStored proceduresnonono
Triggersyes, watching key changesno
Partitioning methods infoMethods for storing different data on different nodesShardingSharding
Replication methods infoMethods for redundantly storing data on multiple nodesUsing Raft consensus algorithm to ensure data replication with strong consistency among multiple replicas.
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyEventual Consistency
Foreign keys infoReferential integritynonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoACIDno
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyesUsing Apache Lucene
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.nono
User concepts infoAccess controlno

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More resources
etcdImmudbNSDb
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