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DBMS > CrateDB vs. etcd vs. XTDB

System Properties Comparison CrateDB vs. etcd vs. XTDB

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Editorial information provided by DB-Engines
NameCrateDB  Xexclude from comparisonetcd  Xexclude from comparisonXTDB infoformerly named Crux  Xexclude from comparison
DescriptionDistributed Database based on LuceneA distributed reliable key-value storeA general purpose database with bitemporal SQL and Datalog and graph queries
Primary database modelDocument store
Time Series DBMS
Key-value storeDocument store
Secondary database modelsRelational DBMS
Search engine
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.82
Rank#237  Overall
#35  Document stores
#19  Time Series DBMS
Score8.60
Rank#53  Overall
#6  Key-value stores
Score0.21
Rank#342  Overall
#48  Document stores
Websitecrate.ioetcd.io
github.com/­etcd-io/­etcd
github.com/­xtdb/­xtdb
xtdb.com
Technical documentationcrate.io/­-docsetcd.io/­docs
github.com/­etcd-io/­etcd/­tree/­master/­Documentation
xtdb.com/­docs
DeveloperCrateJuxt Ltd.
Initial release20132019
Current release3.4, August 20191.19, September 2021
License infoCommercial or Open SourceOpen SourceOpen Source infoApache Version 2.0Open Source infoMIT License
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.
CrateDB Cloud: a distributed SQL database that spreads data and processing across an elastic cluster of shared nothing nodes. CrateDB Cloud enables data insights at scale on Microsoft Azure, AWS and Google Cloud Platform.
Implementation languageJavaGoClojure
Server operating systemsAll Operating Systems, including Kubernetes with CrateDB Kubernetes Operator supportFreeBSD
Linux
Windows infoexperimental
All OS with a Java 8 (and higher) VM
Linux
Data schemeFlexible Schema (defined schema, partial schema, schema free)schema-freeschema-free
Typing infopredefined data types such as float or dateyesnoyes, extensible-data-notation format
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 indexesyesnoyes
SQL infoSupport of SQLyes, but no triggers and constraints, and PostgreSQL compatibilitynolimited SQL, making use of Apache Calcite
APIs and other access methodsADO.NET
JDBC
ODBC
PostgreSQL wire protocol
Prometheus Remote Read/Write
RESTful HTTP API
gRPC
JSON over HTTP
HTTP REST
JDBC
Supported programming languages.NET
Erlang
Go infocommunity maintained client
Java
JavaScript (Node.js) infocommunity maintained client
Perl infocommunity maintained client
PHP
Python
R
Ruby infocommunity maintained client
Scala infocommunity maintained client
.Net
C
C++
Clojure
Erlang
Go
Haskell
Java
JavaScript (Node.js)
Perl
PHP
Python
R
Ruby
Rust
Scala
Tcl
Clojure
Java
Server-side scripts infoStored proceduresuser defined functions (Javascript)nono
Triggersnoyes, watching key changesno
Partitioning methods infoMethods for storing different data on different nodesShardingnone
Replication methods infoMethods for redundantly storing data on multiple nodesConfigurable replication on table/partition-levelUsing Raft consensus algorithm to ensure data replication with strong consistency among multiple replicas.yes, each node contains all data
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency
Read-after-write consistency on record level
Immediate Consistency
Foreign keys infoReferential integritynonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datano infounique row identifiers can be used for implementing an optimistic concurrency control strategynoACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyesyes, flexibel persistency by using storage technologies like Apache Kafka, RocksDB or LMDB
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.nono
User concepts infoAccess controlrights management via user accountsno
More information provided by the system vendor
CrateDBetcdXTDB infoformerly named Crux
Specific characteristicsCrateDB is an open-source distributed SQL database that spreads data and processing...
» more
Competitive advantagesCrateDB is typically used in operational analytics applications. In those scenarios,...
» more
Typical application scenariosCrateDB is ideal for integrating and analyzing streams of data in order to monitor,...
» more
Key customersCrateDB customers include Bitmovin , ALPLA , Gantner Instruments , SPGo! , TGW Logistics...
» more
Market metricsThe CrateDB open source project was started in 2013 Honorable Mention in 2021 Gartner®...
» more
Licensing and pricing modelsCrateDB Cloud The efficiency & range of CrateDB in the Cloud CrateDB Edge brings...
» more

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More resources
CrateDBetcdXTDB infoformerly named Crux
Conferences and events

CrateDB Community Day #2 – Maximizing your data potential with CrateDB integrations
Virtual Event, 4:00pm - 5:15pm CET, 23 March 2023

Finished events

Live Demo on Time-series data: from Raw Data to Fast Analysis in only 3 steps
Webinar, 16:00 - 16:45 CET, 22 February 2023 (finished)

Recent citations in the news

Real-Time Analytics Database Company CrateDB Names Lars ...
1 March 2023, Business Wire

Crate.io extends database service offering to Google Cloud
13 April 2022, VentureBeat

Crate.io raises $10M to grow its database platform
15 June 2021, VentureBeat

Crate.io Brings Power of Industrial SQL Time Series to Azure IoT ...
24 September 2018, Business Wire

CrateDB Tackles Machine Analytics with Scale-Out SQL Database
14 December 2016, Datanami

provided by Google News

How does Kubernetes use etcd?
21 November 2022, TechTarget

Zero-Copy In-Memory Sharing of Large Distributed Data: V6d
14 March 2023, InfoQ.com

How Many Nodes for Your Kubernetes Control Plane?
14 September 2022, The New Stack

Locking Down Kubernetes: RBAC, Audit Logs, etcd Security and More
4 January 2023, Security Boulevard

How to restore a Kubernetes cluster from an etcd snapshot
16 December 2021, TechTarget

provided by Google News

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