DBMS > Apache Druid vs. Sqrrl vs. Yanza
System Properties Comparison Apache Druid vs. Sqrrl vs. Yanza
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|Editorial information provided by DB-Engines|
|Name||Apache Druid Xexclude from comparison||Sqrrl Xexclude from comparison||Yanza Xexclude from comparison|
|Sqrrl has been acquired by Amazon and became a part of Amazon Web Services. It has been removed from the DB-Engines ranking.||Yanza seems to be discontinued. Therefore it is excluded from the DB-Engines Ranking.|
|Description||Open-source analytics data store designed for sub-second OLAP queries on high dimensionality and high cardinality data||Adaptable, secure NoSQL built on Apache Accumulo||Time Series DBMS for IoT Applications|
|Primary database model||Relational DBMS|
Time Series DBMS
Wide column store
|Time Series DBMS|
|Developer||Apache Software Foundation and contributors||Amazon originally Sqrrl Data, Inc.||Yanza|
|Current release||28.0.0, November 2023|
|License Commercial or Open Source||Open Source Apache license v2||commercial||commercial free version available|
|Cloud-based only Only available as a cloud service||no||no||no but mainly used as a service provided by Yanza|
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|Server operating systems||Linux|
|Data scheme||yes schema-less columns are supported||schema-free||schema-free|
|Typing predefined data types such as float or date||yes||yes||no|
|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||no|
|SQL Support of SQL||SQL for querying||no||no|
|APIs and other access methods||JDBC|
RESTful HTTP/JSON API
RESTful HTTP API
|Supported programming languages||Clojure|
C using GLib
|any language that supports HTTP calls|
|Server-side scripts Stored procedures||no||no||no|
|Triggers||no||no||yes Timer and event based|
|Partitioning methods Methods for storing different data on different nodes||Sharding manual/auto, time-based||Sharding making use of Hadoop||none|
|Replication methods Methods for redundantly storing data on multiple nodes||yes, via HDFS, S3 or other storage engines||selectable replication factor making use of Hadoop||none|
|MapReduce Offers an API for user-defined Map/Reduce methods||no||yes||no|
|Consistency concepts Methods to ensure consistency in a distributed system||Immediate Consistency||Immediate Consistency Document store kept consistent with combination of global timestamping, row-level transactions, and server-side consistency resolution.||Immediate Consistency|
|Foreign keys Referential integrity||no||no||no|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||no||Atomic updates per row, document, or graph entity||no|
|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|
|User concepts Access control||RBAC using LDAP or Druid internals for users and groups for read/write by datasource and system||Cell-level Security, Data-Centric Security, Role-Based Access Control (RBAC), Attribute-Based Access Control (ABAC)||no|
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