DBMS > etcd vs. TempoIQ
System Properties Comparison etcd vs. TempoIQ
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|Editorial information provided by DB-Engines|
|Name||etcd Xexclude from comparison||TempoIQ formerly TempoDB Xexclude from comparison|
|TempoIQ seems to be decommissioned. It will be removed from the DB-Engines ranking.|
|Description||A distributed reliable key-value store||Scalable analytics DBMS for sensor data, provided as a service (SaaS)|
|Primary database model||Key-value store||Time Series DBMS|
|Current release||3.4, August 2019|
|License Commercial or Open Source||Open Source Apache Version 2.0||commercial|
|Cloud-based only Only available as a cloud service||no||yes|
|DBaaS offerings (sponsored links) Database as a Service|
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|Server operating systems||FreeBSD|
|Typing predefined data types such as float or date||no||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||no|
|SQL Support of SQL||no||no|
|APIs and other access methods||gRPC|
JSON over HTTP
|Supported programming languages||.Net|
|Server-side scripts Stored procedures||no||no|
|Triggers||yes, watching key changes||yes Realtime Alerts|
|Replication methods Methods for redundantly storing data on multiple nodes||Using Raft consensus algorithm to ensure data replication with strong consistency among multiple replicas.|
|MapReduce Offers an API for user-defined Map/Reduce methods||no||no|
|Consistency concepts Methods to ensure consistency in a distributed system||Immediate Consistency|
|Foreign keys Referential integrity||no||no|
|Transaction concepts Support to ensure data integrity after non-atomic manipulations of data||no||no|
|Concurrency Support for concurrent manipulation of data||yes||yes|
|Durability Support for making data persistent||yes||yes|
|In-memory capabilities Is there an option to define some or all structures to be held in-memory only.||no||no|
|User concepts Access control||no||simple authentication-based access control|
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|etcd||TempoIQ formerly TempoDB|
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