DBMS > Apache Druid vs. Couchbase vs. OushuDB
System Properties Comparison Apache Druid vs. Couchbase vs. OushuDB
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|Editorial information provided by DB-Engines|
|Name||Apache Druid Xexclude from comparison||Couchbase Originally called Membase Xexclude from comparison||OushuDB Xexclude from comparison|
|Description||Open-source analytics data store designed for sub-second OLAP queries on high dimensionality and high cardinality data||A distributed document store with a powerful search engine and in-built operational and analytical capabilities||A data warehouse powered by Apache HAWQ supporting descriptive analysis and advanced machine learning|
|Primary database model||Relational DBMS|
Time Series DBMS
|Document store||Relational DBMS|
|Secondary database models||Key-value store originating from the former Membase product and supporting the Memcached protocol|
Spatial DBMS using the Geocouch extension
|Developer||Apache Software Foundation and contributors||Couchbase, Inc.||Oushu|
|Current release||26.0.0, May 2023||Server: 7.0, July 2021; Mobile: 3, February 2022; Couchbase Capella, October 2021||4.0.1, August 2020|
|License Commercial or Open Source||Open Source Apache license v2||Open Source Apache version 2; Commercial licenses also available||commercial|
|Cloud-based only Only available as a cloud service||no||no||no|
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|Implementation language||Java||C, C++, Go and Erlang|
|Server operating systems||Linux|
|Data scheme||yes schema-less columns are supported||schema-free||yes|
|Typing predefined data types such as float or date||yes||yes String, Boolean, Number||yes|
|XML support Some form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.||no|
|SQL Support of SQL||SQL for querying||Declarative query language (N1QL) that extends ANSI SQL to JSON. First commercial implementation of SQL++.||Full-featured ANSI SQL support|
|APIs and other access methods||JDBC|
RESTful HTTP/JSON API
|Native language bindings for CRUD, Query, Search and Analytics APIs||JDBC|
|Supported programming languages||Clojure|
|Triggers||no||yes via the TAP protocol||yes|
|Partitioning methods Methods for storing different data on different nodes||Sharding manual/auto, time-based||Sharding||yes|
|Replication methods Methods for redundantly storing data on multiple nodes||yes, via HDFS, S3 or other storage engines||Multi-source replication including cross data center replication|
|MapReduce Offers an API for user-defined Map/Reduce methods||no||yes||Hadoop integration|
|Consistency concepts Methods to ensure consistency in a distributed system||Immediate Consistency||Eventual Consistency|
Immediate Consistency selectable on a per-operation basis
|Foreign keys Referential integrity||no||no|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||no||ACID||ACID|
|Concurrency Support for concurrent manipulation of data||yes||yes||yes|
|Durability Support for making data persistent||yes||yes||yes|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||no||yes Ephemeral buckets|
|User concepts Access control||RBAC using LDAP or Druid internals for users and groups for read/write by datasource and system||User and Administrator separation with password-based and LDAP integrated Authentication||Kerberos, SSL and role based access|
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|Apache Druid||Couchbase Originally called Membase||OushuDB|
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