OSH Tutorial Part 3
Storing Data
Types of Data Stores
-
Simple Record Store
Stores only data records and sensor descriptions
-
Full Observation Store
Stores data records, sensor descriptions, features of interest and index data spatially
-
Multi Producer Store
This is an observation store optimized to store data for large sensor arrays
The Storage API defines several interfaces:
Persisting Streaming Data
Sensor Driver
Stream Data Storage
Event
Bus
Data + Sensor Events
Data + Sensor Events
The data stream store wraps any storage implementation It listens to data events coming from a particular source (e.g. sensor, process, etc.) and persists all or some of the associated data records
The store also listens for changes in the data source description (SensorML) and keeps history of the changes
A separate data store is used for each data source
Underlying Storage
Using the Web Admin
Wrapping Existing Data Stores
- Specific implementation of the Storage API
-
Adapter for any type of backend
- File system based
- Web based (e.g. Amazon S3, WebDAV)
- Distributed DB (Google Cloud Datastore, AWS DynamoDB)
- etc.
- Can be read-only
- Code can be shared with a sensor driver getting the corresponding real-time data (if available)
OSH Tutorial - Part 3: Storing Data
By Alex Robin
OSH Tutorial - Part 3: Storing Data
Data persistence in OSH data stores
