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DBMS > etcd vs. Sphinx vs. XAP

System Properties Comparison etcd vs. Sphinx vs. XAP

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Editorial information provided by DB-Engines
Nameetcd  Xexclude from comparisonSphinx  Xexclude from comparisonXAP  Xexclude from comparison
DescriptionA distributed reliable key-value storeOpen source search engine for searching in data from different sources, e.g. relational databasesHigh performant in-memory data grid for mission critical applications. Insight Edge from the same company extends XAP for AI/ML support, BI and other interfaces
Primary database modelKey-value storeSearch engineDocument store
Key-value store infoValues are user defined objects
Secondary database modelsObject oriented DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score7.15
Rank#48  Overall
#6  Key-value stores
Score7.04
Rank#49  Overall
#5  Search engines
Score0.75
Rank#172  Overall
#25  Document stores
#30  Key-value stores
Websiteetcd.io
github.com/­etcd-io/­etcd
sphinxsearch.comwww.gigaspaces.com/­product/­xap
Technical documentationetcd.io/­docs
github.com/­etcd-io/­etcd/­tree/­master/­Documentation
sphinxsearch.com/­docsdocs.gigaspaces.com/­latest/­landing.html
DeveloperSphinx Technologies Inc.Gigaspaces Technologies
Initial release20012000
Current release3.4, August 20193.1.1, October 201814.5.0, June 2019
License infoCommercial or Open SourceOpen Source infoApache Version 2.0Open Source infoGPL version 2, commercial licence availableOpen Source infoApache Version 2; Commercial licenses available
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageGoC++Java, C++, .Net
Server operating systemsFreeBSD
Linux
Windows infoexperimental
FreeBSD
Linux
NetBSD
OS X
Solaris
Windows
Linux
macOS
Solaris
Windows
Data schemeschema-freeyesschema-free
Typing infopredefined data types such as float or datenonoyes
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 infoXML can be used for describing objects metadata
Secondary indexesnoyes infofull-text index on all search fieldsyes
SQL infoSupport of SQLnoSQL-like query language (SphinxQL)SQL-like query language and DML statements
APIs and other access methodsgRPC
JSON over HTTP
Proprietary protocolGigaSpaces LRMI
Hibernate
JCache
JDBC
JPA
ODBC
RESTful HTTP API
Spring Data
Supported programming languages.Net
C
C++
Clojure
Erlang
Go
Haskell
Java
JavaScript (Node.js)
Perl
PHP
Python
R
Ruby
Rust
Scala
Tcl
C++ infounofficial client library
Java
Perl infounofficial client library
PHP
Python
Ruby infounofficial client library
.Net
C++
Java
Server-side scripts infoStored proceduresnonoyes
Triggersyes, watching key changesnoyes infoEvent Listeners
Partitioning methods infoMethods for storing different data on different nodesSharding infoPartitioning is done manually, search queries against distributed index is supportedSharding infoHash based
Replication methods infoMethods for redundantly storing data on multiple nodesUsing Raft consensus algorithm to ensure data replication with strong consistency among multiple replicas.noneMaster-master replication infosynchronous or asynchronous
Master-slave replication infosynchronous or asynchronous
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonoyes infoMap-Reduce pattern can be built with XAP task executors
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate Consistency infoConsistency level configurable: ALL, QUORUM, ANY
Foreign keys infoReferential integritynonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanonoACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyes infoThe original contents of fields are not stored in the Sphinx index.yes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyes
User concepts infoAccess controlnonoRole-based access control

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More resources
etcdSphinxXAP
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