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What is Historian for Linux?

Historian for Linux is a high-performancetimeseries database designed to store and retrieve time-based information at ahigh speed. It runs on Linux platform using Docker technology. Historian forLinux is a collection of several docker images such as Historian database,Historian REST Query Service (for data query), Historian Web Admin Service andvarious Historian Collectors. These docker images run and serve differentpurposes around Historian database.

Overview of Historian for Linuxcapabilities

Historian for Linux provides the followingbenefits:

• Time Series data archiving

• REST API for data query – Data query RESTAPIs are exactly the same as Predix time series REST API.

• Web Admin Console – – Historian Web AdminConsole acts as an admin console of Historian for Linux database.

• OAUTH2 integration – The Historian forLinux data query Rest API honors OAUTH2-based authentication and authorization.Web Admin Console & Tuner also honor OAUTH2 based authentication andauthorization.

• Collector Toolkit library – Used forimplementing collectors that ingest data into Historian for Linux

•User API Library – C library for programmatically adding, deleting, andconfiguring tags for collectors

• Server to Server Collector – Stream dataof one Historian to another Historian or to Predix Time series. It helps indata filtering.

• OPCUA DA Collector – Collects data fromOPCUA DA Server and streams data to Historian. • MQTT Collector – Subscribes toMQTT broker and streams data to Historian. This Collector helps to integrateHistorian for Linux to Data bus of Predix Edge.

• You can also change configurationproperties of Historian database such as data collection rate, archiving style(Day wise, Hour wise) by JSON file with help of Tuner service.