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KeyDB System Properties
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|Editorial information provided by DB-Engines|
|Description||An ultra-fast, open source Key-value store fully compatible with Redis API, modules, and protocols|
|Primary database model||Key-value store|
|Developer||EQ Alpha Technology Ltd.|
|License Commercial or Open Source||Open Source BSD-3|
|Cloud-based only Only available as a cloud service||no|
|DBaaS offerings (sponsored links) Database as a Service|
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|Server operating systems||Linux|
|Typing predefined data types such as float or date||partial Supported data types are strings, hashes, lists, sets and sorted sets, bit arrays, hyperloglogs and geospatial indexes|
|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|
|Secondary indexes||yes by using the Redis Search module|
|SQL Support of SQL||no|
|APIs and other access methods||Proprietary protocol RESP - REdis Serialization Protoco|
|Supported programming languages||C|
|Server-side scripts Stored procedures||Lua|
|Partitioning methods Methods for storing different data on different nodes||Sharding|
|Replication methods Methods for redundantly storing data on multiple nodes||Multi-source replication|
|MapReduce Offers an API for user-defined Map/Reduce methods||no|
|Consistency concepts Methods to ensure consistency in a distributed system||Eventual Consistency|
Strong eventual consistency with CRDTs
|Foreign keys Referential integrity||no|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||Optimistic locking, atomic execution of commands blocks and scripts|
|Concurrency Support for concurrent manipulation of data||yes|
|Durability Support for making data persistent||yes Configurable mechanisms for persistency via snapshots and/or operations logs|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||yes|
|User concepts Access control||simple password-based access control and ACL|
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