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DBMS > etcd vs. Impala vs. SiriDB

System Properties Comparison etcd vs. Impala vs. SiriDB

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Editorial information provided by DB-Engines
Nameetcd  Xexclude from comparisonImpala  Xexclude from comparisonSiriDB  Xexclude from comparison
DescriptionA distributed reliable key-value storeAnalytic DBMS for HadoopOpen Source Time Series DBMS
Primary database modelKey-value storeRelational DBMSTime Series DBMS
Secondary database modelsDocument store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score8.38
Rank#51  Overall
#5  Key-value stores
Score17.39
Rank#37  Overall
#23  Relational DBMS
Score0.08
Rank#381  Overall
#40  Time Series DBMS
Websiteetcd.io
github.com/­etcd-io/­etcd
www.cloudera.com/­products/­open-source/­apache-hadoop/­impala.htmlsiridb.com
Technical documentationetcd.io/­docs
github.com/­etcd-io/­etcd/­tree/­master/­Documentation
docs.cloudera.com/­documentation/­enterprise/­latest/­topics/­impala.htmldocs.siridb.com
DeveloperClouderaCesbit
Initial release20132017
Current release3.4, August 20194.1.0, June 2022
License infoCommercial or Open SourceOpen Source infoApache Version 2.0Open Source infoApache Version 2Open Source infoMIT License
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageGoC++C
Server operating systemsFreeBSD
Linux
Windows infoexperimental
LinuxLinux
Data schemeschema-freeyesyes
Typing infopredefined data types such as float or datenoyesyes infoNumeric data
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 indexesnoyesyes
SQL infoSupport of SQLnoSQL-like DML and DDL statementsno
APIs and other access methodsgRPC
JSON over HTTP
JDBC
ODBC
HTTP API
Supported programming languages.Net
C
C++
Clojure
Erlang
Go
Haskell
Java
JavaScript (Node.js)
Perl
PHP
Python
R
Ruby
Rust
Scala
Tcl
All languages supporting JDBC/ODBCC
C++
Go
Python
Server-side scripts infoStored proceduresnoyes infouser defined functions and integration of map-reduceno
Triggersyes, watching key changesnono
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.selectable replication factoryes
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyes infoquery execution via MapReduceno
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyEventual Consistency
Foreign keys infoReferential integritynonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanonono
Concurrency infoSupport for concurrent manipulation of datayesyesyes
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.nonoyes
User concepts infoAccess controlnoAccess rights for users, groups and roles infobased on Apache Sentry and Kerberossimple rights management via user accounts

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More resources
etcdImpalaSiriDB
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