DB-EnginesExtremeDB: hybrid in-memory and persistent storage based on a true IMDSEnglish
Deutsch
Knowledge Base of Relational and NoSQL Database Management Systemsprovided by solid IT

DBMS > etcd vs. eXtremeDB vs. Google Cloud Spanner

System Properties Comparison etcd vs. eXtremeDB vs. Google Cloud Spanner

Please select another system to include it in the comparison.

Editorial information provided by DB-Engines
Nameetcd  Xexclude from comparisoneXtremeDB  Xexclude from comparisonGoogle Cloud Spanner  Xexclude from comparison
DescriptionA distributed reliable key-value storeNatively in-memory DBMS with options for persistency, high-availability and clusteringA horizontally scalable, globally consistent, relational database service. It is the externalization of the core Google database that runs the biggest aspects of Google, like Ads and Google Play.
Primary database modelKey-value storeRelational DBMS
Time Series DBMS
Relational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score10.10
Rank#45  Overall
#5  Key-value stores
Score0.72
Rank#208  Overall
#103  Relational DBMS
#13  Time Series DBMS
Score3.06
Rank#94  Overall
#48  Relational DBMS
Websiteetcd.io
github.com/­etcd-io/­etcd
www.mcobject.com/­extremedbfamilycloud.google.com/­spanner
Technical documentationetcd.io/­docs
github.com/­etcd-io/­etcd/­tree/­master/­Documentation
www.mcobject.com/­docs/­extremedb.htmcloud.google.com/­spanner/­docs
DeveloperMcObjectGoogle
Initial release20012017
Current release3.4, August 20198.2, November 2020
License infoCommercial or Open SourceOpen Source infoApache Version 2.0commercialcommercial
Cloud-based only infoOnly available as a cloud servicenonoyes
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageGoC and C++
Server operating systemsFreeBSD
Linux
Windows infoexperimental
AIX
HP-UX
Linux
macOS
Solaris
Windows
hosted
Data schemeschema-freeyesyes
Typing infopredefined data types such as float or datenoyesyes
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 infosupport of XML interfaces availableno
Secondary indexesnoyesyes
SQL infoSupport of SQLnoyes infowith the option: eXtremeSQLyes infoQuery statements complying to ANSI 2011
APIs and other access methodsgRPC
JSON over HTTP
.NET Client API
JDBC
JNI
ODBC
Proprietary protocol
RESTful HTTP API
gRPC (using protocol buffers) API
JDBC infoAt present, JDBC supports read-only queries. No support for DDL or DML statements.
RESTful HTTP API
Supported programming languages.Net
C
C++
Clojure
Erlang
Go
Haskell
Java
JavaScript (Node.js)
Perl
PHP
Python
R
Ruby
Rust
Scala
Tcl
.Net
C
C#
C++
Java
Lua
Python
Scala
Go
Java
JavaScript (Node.js)
Python
Server-side scripts infoStored proceduresnoyesno
Triggersyes, watching key changesyes infoby defining eventsno
Partitioning methods infoMethods for storing different data on different nodeshorizontal partitioning / shardingSharding
Replication methods infoMethods for redundantly storing data on multiple nodesUsing Raft consensus algorithm to ensure data replication with strong consistency among multiple replicas.Active Replication Fabric™ for IoT
Multi-source replication infoby means of eXtremeDB Cluster option
Source-replica replication infoby means of eXtremeDB High Availability option
Multi-source replication with 3 replicas for regional instances.
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonoyes infousing Google Cloud Dataflow
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynoyesyes infoby using interleaved tables, this features focuses more on performance improvements than on referential integrity
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoACIDACID infoStrict serializable isolation
Concurrency infoSupport for concurrent manipulation of datayesyes infoOptimistic (MVCC) and pessimistic (locking) strategies availableyes
Durability infoSupport for making data persistentyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyesno
User concepts infoAccess controlnoAccess rights for users, groups and roles based on Google Cloud Identity and Access Management (IAM)
More information provided by the system vendor
etcdeXtremeDBGoogle Cloud Spanner
Specific characteristicseXtremeDB is an in-memory and/or persistent database system that offers an ultra-small...
» more
Competitive advantageseXtremeDB databases can be modeled relationally or as objects and can utilize SQL...
» more
Typical application scenariosIoT application across all markets: Industrial Control, Netcom, Telecom, Defense,...
» more
Key customersSchneider Electronics, F5 Networks, TNS, Boeing, Northrop Grumman, GoPro, ViaSat,...
» more
Market metricsWith hundreds of customers and over 28 million devices/applications using the product...
» more
Licensing and pricing modelsFor server use cases, there is a simple per-server license irrespective of the number...
» more

We invite representatives of system vendors to contact us for updating and extending the system information,
and for displaying vendor-provided information such as key customers, competitive advantages and market metrics.

Related products and services

We invite representatives of vendors of related products to contact us for presenting information about their offerings here.

More resources
etcdeXtremeDBGoogle Cloud Spanner
Recent citations in the news

All about performance: etcd 3.5 looks to make Kubernetes users happy • DEVCLASS
17 June 2021, DevClass

Distributed Key-Value Store etcd Graduates at CNCF
29 November 2020, InfoQ.com

Cloud Native Computing Foundation Announces etcd Graduation
24 November 2020, PRNewswire

Using Mayhem for API to Fuzz etcd
10 June 2021, Security Boulevard

Presentation: A Kubernetes Operator for etcd
13 October 2020, InfoQ.com

provided by Google News

eXtremeDB 8.1 adds features for easier, more sophisticated
19 November 2019, GlobeNewswire

McObject and Logic Partner to Meet Growing Embedded Database Management Needs
23 February 2021, GlobeNewswire

Demand more control from a database management system
19 August 2020, GlobeNewswire

eXtremeDB embedded database system compatible with AdaCore's GNAT Pro Toolset for Ada programming language
9 December 2014, Intelligent Aerospace

The 2019 IoT Global Awards shortlist nominees are…
25 September 2019, VanillaPlus

provided by Google News

Google is Constructing Its Second "Cloud Region" in India
19 July 2021, Synced

Google Cloud opens second India region in Delhi
15 July 2021, ZDNet

Confluent Is Named Google Cloud Technology Partner of the Year for the Third Year in a Row
20 July 2021, Business Wire

India among fast-growing markets: Google Cloud CEO
16 July 2021, Times of India

Google Cloud Opens Second Cloud Region in India
21 July 2021, EnterpriseTalk

provided by Google News

Job opportunities

Software Engineer, Storage Engine
InfluxData, Michigan

System Administrator (Open LMS) US, REMOTE
LTG, United States

Software Engineer, Data Streaming-Remote
TigerGraph, California

Software Engineer, Infrastructure (K8S)-Remote
TigerGraph, California

N1-ENT-06-21 Apprentice Engineer
Business Transformation Institute, Columbia, MD

Sr. Data Architect (100% REMOTE)
Kairos Technologies, Remote

Data Warehousing/Data Architect with Cassandra( 100% Remote )
Kairos Technologies, Remote

ETL Big Data Architect (100% REMOTE)
Kairos Technologies, Remote

WPF Sr. Engineer
LT Technology Services, Santa Clara, CA

Googl Cloud
TCS, Edison, NJ

Consulting Cloud Solutions Architect
HCA Healthcare, Nashville, TN

Google Business Cloud Practice
TCS, New York, NY

Software Engineer III, Google Play
Google, Atlanta, GA

Google Cloud - GCP Data Architect
Capgemini, Atlanta, GA

jobs by Indeed



Share this page

Featured Products

Datastax Astra logo

Build cloud-native apps fast with Astra, the open-source, multi-cloud stack for
modern data apps.
Get started with 5 GB free..

Neo4j logo

See for yourself how a graph database can make your life easier.
Use Neo4j online for free.

Couchbase logo

SQL + JSON + NoSQL.
Power, flexibility & scale.
All open source.
Get started now.

Vertica logo

The fastest unified analytical warehouse at extreme scale with in-database machine learning. Try Vertica for free with no time limit.

MariaDB logo

SkySQL, the ultimate
MariaDB cloud, is here.

Get started with SkySQL today!

Present your product here